diff --git a/include/berry_data.h b/include/berry_data.h
index 2fd189da76..bef6bbc212 100644
--- a/include/berry_data.h
+++ b/include/berry_data.h
@@ -1,87 +1,51 @@
 #ifndef POKEPLATINUM_BERRY_DATA_H
 #define POKEPLATINUM_BERRY_DATA_H
 
-#include "struct_decls/struct_berry_data_decl.h"
-
 #include "narc.h"
 #include "strbuf.h"
 
+// These must be #defines for csv2bin
 #define FIRMNESS_VERY_SOFT  1
 #define FIRMNESS_SOFT       2
 #define FIRMNESS_HARD       3
 #define FIRMNESS_VERY_HARD  4
 #define FIRMNESS_SUPER_HARD 5
 
-/*
- * Constructs a new NARC which contains an open FSFile to the berry data archive.
- *
- * @param heapID:       ID of the heap to alloc from
- *
- * @returns: Pointer to the newly-allocated NARC
- */
+enum BerryAttribute {
+    BERRYATTR_SIZE = 0,
+    BERRYATTR_FIRMNESS,
+    BERRYATTR_YIELD_CATEGORY,
+    BERRYATTR_STAGE_DURATION,
+    BERRYATTR_MOISTURE_DRAIN_RATE,
+    BERRYATTR_SPICINESS,
+    BERRYATTR_DRYNESS,
+    BERRYATTR_SWEETNESS,
+    BERRYATTR_BITTERNESS,
+    BERRYATTR_SOURNESS,
+    BERRYATTR_SMOOTHNESS,
+};
+
+typedef struct BerryData {
+    u16 size;
+    u8 firmness;
+    u8 yieldCategory;
+    u8 stageDuration;
+    u8 moistureDrainRate;
+    u8 spiciness;
+    u8 dryness;
+    u8 sweetness;
+    u8 bitterness;
+    u8 sourness;
+    u8 smoothness;
+} BerryData;
+
 NARC *BerryData_NARC_ctor(u32 heapID);
-
-BerryData *sub_020973A8(NARC *param0, u32 param1, u32 param2);
-
-/*
- * Closes the wrapped FSFile and returns the NARC allocation to the heap from whence it came.
- *
- * @param narc:    Pointer to the NARC
- */
+BerryData *BerryData_LoadFromOpenNARC(NARC *narc, u32 memberIdx, u32 heapID);
 void BerryData_NARC_dtor(NARC *narc);
-
-/*
- * Creates a new buffer large enough to hold the data of the specified
- * NARC member in 'nuts_data.narc', then reads the data.
- *
- * @param index:          Index of the NARC member within 'nuts_data.narc' which contains the berry's data
- * @param heapID:         ID of the heap to alloc from
- *
- * @returns: Pointer to the allocated buffer which contains the data that was read.
- */
-BerryData *BerryData_LoadDataByNarcMemberIndex(u32 index, u32 heapID);
-
-/*
- * Creates a new buffer large enough to hold the data of the
- * specified berry, then reads the data from nuts_data.narc
- *
- * @param itemID:         Item ID of the berry for which to read the data
- * @param heapID:         ID of the heap to alloc from
- *
- * @returns: Pointer to the allocated buffer which contains the data that was read.
- */
+BerryData *BerryData_Load(u32 memberIdx, u32 heapID);
 BerryData *BerryData_LoadDataByItemID(u32 itemID, u32 heapID);
-
-/*
- * Retrieves the value of the specified attribute from a BerryData buffer
- *
- * @param berryData:      Pointer to the buffer holding the berry data
- * @param attributeID:    ID of the attribute to retrieve the value for
- *
- * @returns: The value of the specified attribute
- */
 u32 BerryData_GetAttribute(BerryData *berryData, u32 attributeID);
-
-/*
- * Creates a new string buffer large enough to hold the
- * name of the specified berry, then reads the string.
- *
- * @param index:          Index of the NARC member within 'nuts_data.narc' which contains the berry's data
- * @param heapID:         ID of the heap to alloc from
- *
- * @returns: Pointer to the allocated buffer which contains the string that was read.
- */
-Strbuf *BerryData_AllocAndGetName(u16 index, u32 heapID);
-
-/*
- * Creates a new string buffer large enough to hold the
- * description of the specified berry, then reads the string.
- *
- * @param index:          Index of the NARC member within 'nuts_data.narc' which contains the berry's data
- * @param heapID:         ID of the heap to alloc from
- *
- * @returns: Pointer to the allocated buffer which contains the string that was read.
- */
-Strbuf *BerryData_AllocAndGetDescription(u16 index, u16 heapID);
+Strbuf *BerryData_AllocAndGetName(u16 memberIdx, u32 heapID);
+Strbuf *BerryData_AllocAndGetDescription(u16 memberIdx, u16 heapID);
 
 #endif // POKEPLATINUM_BERRY_DATA_H
diff --git a/include/berry_patches.h b/include/berry_patches.h
new file mode 100644
index 0000000000..8503c2ff36
--- /dev/null
+++ b/include/berry_patches.h
@@ -0,0 +1,67 @@
+#ifndef POKEPLATINUM_BERRY_PATCHES_H
+#define POKEPLATINUM_BERRY_PATCHES_H
+
+#include "constants/heap.h"
+
+#define MAX_BERRY_PATCHES 128
+
+enum BerryGrowthStage {
+    BERRY_GROWTH_STAGE_NONE = 0,
+    BERRY_GROWTH_STAGE_PLANTED,
+    BERRY_GROWTH_STAGE_SPROUTED,
+    BERRY_GROWTH_STAGE_GROWING,
+    BERRY_GROWTH_STAGE_BLOOMING,
+    BERRY_GROWTH_STAGE_FRUIT,
+};
+
+enum MulchType {
+    MULCH_TYPE_NONE = 0,
+    MULCH_TYPE_GROWTH,
+    MULCH_TYPE_DAMP,
+    MULCH_TYPE_STABLE,
+    MULCH_TYPE_GOOEY,
+};
+
+enum SoilMoisture {
+    SOIL_VERY_DRY = 0,
+    SOIL_DRY,
+    SOIL_MOIST,
+};
+
+typedef struct BerryPatch {
+    u8 berryID;
+    u8 growthStage;
+    u16 stageMinutesRemaining;
+    u16 moistureMinutesRemaining;
+    u8 replantCount;
+    u16 yield;
+    u8 moistureRating;
+    u8 yieldRating;
+    u8 mulchType;
+    u8 isGrowing;
+} BerryPatch;
+
+typedef struct BerryGrowthData {
+    u8 stageDuration;
+    u8 moistureDrainRate;
+    u8 yieldCategory;
+} BerryGrowthData;
+
+void BerryPatches_Clear(BerryPatch *patches);
+void BerryPatches_Init(BerryPatch *patches, enum HeapId heapID, const u16 *initPatches, int initSize);
+BerryGrowthData *BerryGrowthData_Init(enum HeapId heapID);
+enum BerryGrowthStage BerryPatches_GetPatchGrowthStage(const BerryPatch *patches, int patchID);
+int BerryPatches_GetPatchBerryID(const BerryPatch *patches, int patchID);
+enum SoilMoisture BerryPatches_GetPatchMoisture(const BerryPatch *patches, int patchID);
+int BerryPatches_GetPatchYieldRating(const BerryPatch *patches, int patchID);
+void BerryPatches_PlantInPatch(BerryPatch *patches, int patchID, const BerryGrowthData *growthData, int berryID);
+void BerryPatches_ResetPatchMoisture(BerryPatch *patches, int patchID);
+BOOL BerryPatches_IsPatchGrowing(const BerryPatch *patches, int patchID);
+void BerryPatches_SetIsPatchGrowing(BerryPatch *patches, int patchID, BOOL isGrowing);
+enum MulchType BerryPatches_GetPatchMulchType(const BerryPatch *patches, int patchID);
+void BerryPatches_SetPatchMulchType(BerryPatch *patches, int patchID, enum MulchType mulchType);
+int BerryPatches_GetPatchYield(const BerryPatch *patches, int patchID);
+int BerryPatches_HarvestPatch(BerryPatch *patches, int patchID);
+void BerryPatches_ElapseMinutes(BerryPatch *patches, const BerryGrowthData *growthData, int minutesPassed);
+
+#endif // POKEPLATINUM_BERRY_PATCHES_H
diff --git a/include/savedata_misc.h b/include/savedata_misc.h
index 96dcde809d..0c6ce8f73f 100644
--- a/include/savedata_misc.h
+++ b/include/savedata_misc.h
@@ -4,12 +4,11 @@
 #include "constants/savedata/save_table.h"
 #include "constants/string.h"
 
-#include "struct_decls/struct_02027854_decl.h"
 #include "struct_decls/struct_02027860_decl.h"
 #include "struct_defs/sentence.h"
-#include "struct_defs/struct_02027854.h"
 #include "struct_defs/struct_02027860.h"
 
+#include "berry_patches.h"
 #include "savedata.h"
 #include "strbuf.h"
 
@@ -21,7 +20,7 @@ typedef struct ExtraSaveKey {
 } ExtraSaveKey;
 
 typedef struct MiscSaveBlock {
-    UnkStruct_02027854 unk_00[128];
+    BerryPatch berryPatches[MAX_BERRY_PATCHES];
     UnkStruct_02027860 unk_680;
     u16 rivalName[TRAINER_NAME_LEN + 1];
     u16 tabletName[TABLET_NAME_LEN + 1]; // used in shaymin event
@@ -40,7 +39,7 @@ int MiscSaveBlock_SaveSize(void);
 void MiscSaveBlock_Init(MiscSaveBlock *miscSave);
 MiscSaveBlock *SaveData_MiscSaveBlock(SaveData *saveData);
 const MiscSaveBlock *SaveData_MiscSaveBlockConst(const SaveData *saveData);
-UnkStruct_02027854 *sub_02027854(SaveData *saveData);
+BerryPatch *MiscSaveBlock_GetBerryPatches(SaveData *saveData);
 UnkStruct_02027860 *sub_02027860(SaveData *saveData);
 const u16 *MiscSaveBlock_RivalName(const MiscSaveBlock *miscSave);
 void MiscSaveBlock_SetRivalName(MiscSaveBlock *miscSave, Strbuf *name);
diff --git a/include/struct_decls/struct_02027854_decl.h b/include/struct_decls/struct_02027854_decl.h
deleted file mode 100644
index c1435845f7..0000000000
--- a/include/struct_decls/struct_02027854_decl.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef POKEPLATINUM_STRUCT_02027854_DECL_H
-#define POKEPLATINUM_STRUCT_02027854_DECL_H
-
-typedef struct UnkStruct_02027854_t UnkStruct_02027854;
-
-#endif // POKEPLATINUM_STRUCT_02027854_DECL_H
diff --git a/include/struct_decls/struct_berry_data_decl.h b/include/struct_decls/struct_berry_data_decl.h
deleted file mode 100644
index 582449a2b9..0000000000
--- a/include/struct_decls/struct_berry_data_decl.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef POKEPLATINUM_STRUCT_BERRY_DATA_DECL_H
-#define POKEPLATINUM_STRUCT_BERRY_DATA_DECL_H
-
-typedef struct BerryData BerryData;
-
-#endif // POKEPLATINUM_STRUCT_BERRY_DATA_DECL_H
diff --git a/include/struct_defs/struct_02027854.h b/include/struct_defs/struct_02027854.h
deleted file mode 100644
index 5307da788b..0000000000
--- a/include/struct_defs/struct_02027854.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef POKEPLATINUM_STRUCT_02027854_H
-#define POKEPLATINUM_STRUCT_02027854_H
-
-typedef struct UnkStruct_02027854_t {
-    u8 unk_00;
-    u8 unk_01;
-    u16 unk_02;
-    u16 unk_04;
-    u8 unk_06;
-    u16 unk_08;
-    u8 unk_0A;
-    u8 unk_0B;
-    u8 unk_0C;
-    u8 unk_0D;
-} UnkStruct_02027854;
-
-#endif // POKEPLATINUM_STRUCT_02027854_H
diff --git a/include/struct_defs/struct_02027BF4.h b/include/struct_defs/struct_02027BF4.h
deleted file mode 100644
index c41e97e43e..0000000000
--- a/include/struct_defs/struct_02027BF4.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef POKEPLATINUM_STRUCT_02027BF4_H
-#define POKEPLATINUM_STRUCT_02027BF4_H
-
-typedef struct {
-    u8 unk_00;
-    u8 unk_01;
-    u8 unk_02;
-} UnkStruct_02027BF4;
-
-#endif // POKEPLATINUM_STRUCT_02027BF4_H
diff --git a/include/unk_02027B70.h b/include/unk_02027B70.h
deleted file mode 100644
index 4359636497..0000000000
--- a/include/unk_02027B70.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef POKEPLATINUM_UNK_02027B70_H
-#define POKEPLATINUM_UNK_02027B70_H
-
-#include "struct_decls/struct_02027854_decl.h"
-#include "struct_defs/struct_02027BF4.h"
-
-void sub_02027B70(UnkStruct_02027854 *param0);
-void sub_02027B90(UnkStruct_02027854 *param0, int param1, const u16 *param2, int param3);
-UnkStruct_02027BF4 *sub_02027BF4(int param0);
-int sub_02027D04(const UnkStruct_02027854 *param0, int param1);
-int sub_02027D10(const UnkStruct_02027854 *param0, int param1);
-int sub_02027D18(const UnkStruct_02027854 *param0, int param1);
-int sub_02027D34(const UnkStruct_02027854 *param0, int param1);
-void sub_02027D40(UnkStruct_02027854 *param0, int param1, const UnkStruct_02027BF4 *param2, int param3);
-void sub_02027D78(UnkStruct_02027854 *param0, int param1);
-BOOL sub_02027D84(const UnkStruct_02027854 *param0, int param1);
-void sub_02027D90(UnkStruct_02027854 *param0, int param1, BOOL param2);
-int sub_02027D9C(const UnkStruct_02027854 *param0, int param1);
-void sub_02027DA8(UnkStruct_02027854 *param0, int param1, int param2);
-int sub_02027DB4(const UnkStruct_02027854 *param0, int param1);
-int sub_02027DC0(UnkStruct_02027854 *param0, int param1);
-void sub_02027EAC(UnkStruct_02027854 *param0, const UnkStruct_02027BF4 *param1, int param2);
-
-#endif // POKEPLATINUM_UNK_02027B70_H
diff --git a/platinum.us/main.lsf b/platinum.us/main.lsf
index 35303e2f3d..a8590307f8 100644
--- a/platinum.us/main.lsf
+++ b/platinum.us/main.lsf
@@ -112,7 +112,7 @@ Static main
 	Object main.nef.p/src_unk_0202631C.c.o
 	Object main.nef.p/src_savedata_misc.c.o
 	Object main.nef.p/src_game_options.c.o
-	Object main.nef.p/src_unk_02027B70.c.o
+	Object main.nef.p/src_berry_patches.c.o
 	Object main.nef.p/src_unk_02027F50.c.o
 	Object main.nef.p/src_unk_02027F84.c.o
 	Object main.nef.p/src_unk_02028124.c.o
diff --git a/res/text/meson.build b/res/text/meson.build
index cf2af63274..8ee52c4390 100644
--- a/res/text/meson.build
+++ b/res/text/meson.build
@@ -420,8 +420,8 @@ message_bank_files = files(
     'message_bank_unk_0420.gmm',
     'message_bank_unk_0421.gmm',
     'message_bank_unk_0422.gmm',
-    'message_bank_unk_0423.gmm',
-    'message_bank_unk_0424.gmm',
+    'message_bank_berry_descriptions.gmm',
+    'message_bank_berry_names.gmm',
     'message_bank_unk_0425.gmm',
     'message_bank_unk_0426.gmm',
     'message_bank_unk_0427.gmm',
diff --git a/res/text/message_bank_unk_0423.gmm b/res/text/message_bank_berry_descriptions.gmm
similarity index 100%
rename from res/text/message_bank_unk_0423.gmm
rename to res/text/message_bank_berry_descriptions.gmm
diff --git a/res/text/message_bank_unk_0424.gmm b/res/text/message_bank_berry_names.gmm
similarity index 100%
rename from res/text/message_bank_unk_0424.gmm
rename to res/text/message_bank_berry_names.gmm
diff --git a/res/text/message_banks.order b/res/text/message_banks.order
index 5864cf81f9..de8eadabab 100644
--- a/res/text/message_banks.order
+++ b/res/text/message_banks.order
@@ -421,8 +421,8 @@ message_bank_unk_0419
 message_bank_unk_0420
 message_bank_unk_0421
 message_bank_unk_0422
-message_bank_unk_0423
-message_bank_unk_0424
+message_bank_berry_descriptions
+message_bank_berry_names
 message_bank_unk_0425
 message_bank_unk_0426
 message_bank_unk_0427
diff --git a/src/berry_data.c b/src/berry_data.c
index 6c6268a0c6..bad480019b 100644
--- a/src/berry_data.c
+++ b/src/berry_data.c
@@ -1,34 +1,22 @@
 #include "berry_data.h"
 
-#include <nitro.h>
-#include <string.h>
+#include "constants/items.h"
+#include "constants/narc.h"
+
+#include "text/pl_msg.naix"
 
 #include "message.h"
 #include "narc.h"
 #include "strbuf.h"
 
-typedef struct BerryData {
-    u16 size;
-    u8 firmness;
-    u8 yieldCategory;
-    u8 stageDuration;
-    u8 moistureDrainRate;
-    u8 spiciness;
-    u8 dryness;
-    u8 sweetness;
-    u8 bitterness;
-    u8 sourness;
-    u8 smoothness;
-} BerryData;
-
 NARC *BerryData_NARC_ctor(u32 heapID)
 {
     return NARC_ctor(NARC_INDEX_ITEMTOOL__ITEMDATA__NUTS_DATA, heapID);
 }
 
-BerryData *sub_020973A8(NARC *param0, u32 param1, u32 param2)
+BerryData *BerryData_LoadFromOpenNARC(NARC *narc, u32 memberIdx, u32 heapID)
 {
-    return NARC_AllocAndReadWholeMember(param0, 0 + param1, param2);
+    return NARC_AllocAndReadWholeMember(narc, memberIdx, heapID);
 }
 
 void BerryData_NARC_dtor(NARC *narc)
@@ -36,66 +24,58 @@ void BerryData_NARC_dtor(NARC *narc)
     NARC_dtor(narc);
 }
 
-BerryData *BerryData_LoadDataByNarcMemberIndex(u32 index, u32 heapID)
+BerryData *BerryData_Load(u32 memberIdx, u32 heapID)
 {
-    return NARC_AllocAndReadWholeMemberByIndexPair(NARC_INDEX_ITEMTOOL__ITEMDATA__NUTS_DATA, 0 + index, heapID);
+    return NARC_AllocAndReadWholeMemberByIndexPair(NARC_INDEX_ITEMTOOL__ITEMDATA__NUTS_DATA, memberIdx, heapID);
 }
 
 BerryData *BerryData_LoadDataByItemID(u32 itemID, u32 heapID)
 {
-    return BerryData_LoadDataByNarcMemberIndex(itemID - 149, heapID);
+    return BerryData_Load(itemID - FIRST_BERRY_IDX, heapID);
 }
 
 u32 BerryData_GetAttribute(BerryData *berryData, u32 attributeID)
 {
     switch (attributeID) {
-    case 0:
+    case BERRYATTR_SIZE:
         return berryData->size;
-    case 1:
+    case BERRYATTR_FIRMNESS:
         return berryData->firmness;
-    case 2:
+    case BERRYATTR_YIELD_CATEGORY:
         return berryData->yieldCategory;
-    case 3:
+    case BERRYATTR_STAGE_DURATION:
         return berryData->stageDuration;
-    case 4:
+    case BERRYATTR_MOISTURE_DRAIN_RATE:
         return berryData->moistureDrainRate;
-    case 5:
+    case BERRYATTR_SPICINESS:
         return berryData->spiciness;
-    case 6:
+    case BERRYATTR_DRYNESS:
         return berryData->dryness;
-    case 7:
+    case BERRYATTR_SWEETNESS:
         return berryData->sweetness;
-    case 8:
+    case BERRYATTR_BITTERNESS:
         return berryData->bitterness;
-    case 9:
+    case BERRYATTR_SOURNESS:
         return berryData->sourness;
-    case 10:
+    case BERRYATTR_SMOOTHNESS:
         return berryData->smoothness;
     }
 
     return 0;
 }
 
-Strbuf *BerryData_AllocAndGetName(u16 index, u32 heapID)
+Strbuf *BerryData_AllocAndGetName(u16 memberIdx, u32 heapID)
 {
-    MessageLoader *v0;
-    Strbuf *v1;
-
-    v0 = MessageLoader_Init(1, 26, 424, heapID);
-    v1 = MessageLoader_GetNewStrbuf(v0, index);
-
-    MessageLoader_Free(v0);
-    return v1;
+    MessageLoader *loader = MessageLoader_Init(MESSAGE_LOADER_NARC_HANDLE, NARC_INDEX_MSGDATA__PL_MSG, message_bank_berry_names, heapID);
+    Strbuf *name = MessageLoader_GetNewStrbuf(loader, memberIdx);
+    MessageLoader_Free(loader);
+    return name;
 }
 
-Strbuf *BerryData_AllocAndGetDescription(u16 index, u16 heapID)
+Strbuf *BerryData_AllocAndGetDescription(u16 memberIdx, u16 heapID)
 {
-    MessageLoader *v0;
-    Strbuf *v1;
-
-    v0 = MessageLoader_Init(1, 26, 423, heapID);
-    v1 = MessageLoader_GetNewStrbuf(v0, index);
-
-    MessageLoader_Free(v0);
-    return v1;
+    MessageLoader *loader = MessageLoader_Init(MESSAGE_LOADER_NARC_HANDLE, NARC_INDEX_MSGDATA__PL_MSG, message_bank_berry_descriptions, heapID);
+    Strbuf *desc = MessageLoader_GetNewStrbuf(loader, memberIdx);
+    MessageLoader_Free(loader);
+    return desc;
 }
diff --git a/src/berry_patches.c b/src/berry_patches.c
new file mode 100644
index 0000000000..c625c9d39a
--- /dev/null
+++ b/src/berry_patches.c
@@ -0,0 +1,329 @@
+#include "berry_patches.h"
+
+#include "constants/heap.h"
+#include "constants/items.h"
+
+#include "berry_data.h"
+#include "heap.h"
+#include "narc.h"
+
+#define BASE_HARVEST_STAGES    4
+#define BASE_MAX_REPLANT_COUNT 10
+#define MAX_MOISTURE_RATING    100
+#define MAX_YIELD_RATING       5
+
+static void ZeroBerryPatch(BerryPatch *berryPatch);
+static int CalcBerryYield(BerryPatch *berryPatch, const BerryGrowthData *growthData);
+static int CalcMinutesRemainingInStage(const BerryGrowthData *growthData, int berryID, enum MulchType mulchType);
+static int CalcMoistureDrainRate(const BerryGrowthData *growthData, int berryID, enum MulchType mulchType);
+static int GetHarvestTimeWithMulch(const BerryPatch *berryPatch);
+static int GetTotalReplantCountWithMulch(const BerryPatch *berryPatch);
+static int CalcTotalStageCount(BerryPatch *berryPatch);
+static void AdvancePatchGrowth(BerryPatch *berryPatch, const BerryGrowthData *growthData);
+static void DrainPatchMoisture(BerryPatch *berryPatch, const BerryGrowthData *growthData, int minutesPassed);
+
+void BerryPatches_Clear(BerryPatch *patches)
+{
+    MI_CpuClear8(patches, sizeof(BerryPatch) * MAX_BERRY_PATCHES);
+    for (int i = 0; i < MAX_BERRY_PATCHES; i++) {
+        patches[i].growthStage = BERRY_GROWTH_STAGE_NONE;
+        patches[i].berryID = 0;
+    }
+}
+
+void BerryPatches_Init(BerryPatch *patches, enum HeapId heapID, const u16 *initPatches, int initSize)
+{
+    BerryGrowthData *growthData = BerryGrowthData_Init(heapID);
+
+    for (int i = 0; i < MAX_BERRY_PATCHES || i < initSize; i++) {
+        ZeroBerryPatch(&patches[i]);
+
+        patches[i].berryID = initPatches[i * 2] - FIRST_BERRY_IDX + 1;
+        patches[i].growthStage = BERRY_GROWTH_STAGE_FRUIT;
+        patches[i].stageMinutesRemaining = CalcMinutesRemainingInStage(growthData, patches[i].berryID, patches[i].mulchType) * 4;
+        patches[i].yield = initPatches[i * 2 + 1];
+        patches[i].moistureRating = MAX_MOISTURE_RATING;
+        patches[i].yieldRating = 3;
+    }
+
+    Heap_FreeToHeap(growthData);
+}
+
+BerryGrowthData *BerryGrowthData_Init(enum HeapId heapID)
+{
+    BerryGrowthData *growthData;
+    BerryData *berryData;
+    NARC *narc;
+
+    narc = BerryData_NARC_ctor(heapID);
+    growthData = Heap_AllocFromHeap(heapID, sizeof(BerryGrowthData) * NUM_BERRIES);
+
+    for (int i = 0; i < NUM_BERRIES; i++) {
+        berryData = BerryData_LoadFromOpenNARC(narc, i, heapID);
+
+        growthData[i].stageDuration = BerryData_GetAttribute(berryData, BERRYATTR_STAGE_DURATION);
+        growthData[i].moistureDrainRate = BerryData_GetAttribute(berryData, BERRYATTR_MOISTURE_DRAIN_RATE);
+        growthData[i].yieldCategory = BerryData_GetAttribute(berryData, BERRYATTR_YIELD_CATEGORY);
+
+        Heap_FreeToHeap(berryData);
+    }
+
+    BerryData_NARC_dtor(narc);
+    return growthData;
+}
+
+static void ZeroBerryPatch(BerryPatch *berryPatch)
+{
+    berryPatch->berryID = 0;
+    berryPatch->growthStage = BERRY_GROWTH_STAGE_NONE;
+    berryPatch->stageMinutesRemaining = 0;
+    berryPatch->moistureMinutesRemaining = 0;
+    berryPatch->replantCount = 0;
+    berryPatch->yield = 0;
+    berryPatch->moistureRating = 0;
+    berryPatch->yieldRating = 0;
+    berryPatch->mulchType = 0;
+    berryPatch->isGrowing = FALSE;
+}
+
+static int CalcBerryYield(BerryPatch *berryPatch, const BerryGrowthData *growthData)
+{
+    return growthData[berryPatch->berryID - 1].yieldCategory * berryPatch->yieldRating;
+}
+
+static int CalcMinutesRemainingInStage(const BerryGrowthData *growthData, int berryID, enum MulchType mulchType)
+{
+    int minutesRemaining = growthData[berryID - 1].stageDuration * 60;
+
+    if (mulchType == MULCH_TYPE_GROWTH) {
+        minutesRemaining = (minutesRemaining * 3) / 4;
+    } else if (mulchType == MULCH_TYPE_DAMP) {
+        minutesRemaining = minutesRemaining + (minutesRemaining / 2);
+    }
+
+    return minutesRemaining;
+}
+
+static int CalcMoistureDrainRate(const BerryGrowthData *growthData, int berryID, enum MulchType mulchType)
+{
+    int drainRate = growthData[berryID - 1].moistureDrainRate;
+
+    if (mulchType == MULCH_TYPE_DAMP) {
+        return drainRate / 2;
+    } else if (mulchType == MULCH_TYPE_GROWTH) {
+        return drainRate + drainRate / 2;
+    } else {
+        return drainRate;
+    }
+}
+
+static int GetHarvestTimeWithMulch(const BerryPatch *berryPatch)
+{
+    if (berryPatch->mulchType == MULCH_TYPE_STABLE) {
+        return BASE_HARVEST_STAGES + (BASE_HARVEST_STAGES / 2);
+    } else {
+        return BASE_HARVEST_STAGES;
+    }
+}
+
+static int GetTotalReplantCountWithMulch(const BerryPatch *berryPatch)
+{
+    if (berryPatch->mulchType == MULCH_TYPE_GOOEY) {
+        return BASE_MAX_REPLANT_COUNT + (BASE_MAX_REPLANT_COUNT / 2);
+    } else {
+        return BASE_MAX_REPLANT_COUNT;
+    }
+}
+
+static int CalcTotalStageCount(BerryPatch *berryPatch)
+{
+    return 1 + (3 + GetHarvestTimeWithMulch(berryPatch)) * GetTotalReplantCountWithMulch(berryPatch);
+}
+
+enum BerryGrowthStage BerryPatches_GetPatchGrowthStage(const BerryPatch *patches, int patchID)
+{
+    return patches[patchID].growthStage;
+}
+
+int BerryPatches_GetPatchBerryID(const BerryPatch *patches, int patchID)
+{
+    return patches[patchID].berryID;
+}
+
+enum SoilMoisture BerryPatches_GetPatchMoisture(const BerryPatch *patches, int patchID)
+{
+    int moistureRating = patches[patchID].moistureRating;
+    if (moistureRating == 0) {
+        return SOIL_VERY_DRY;
+    } else if (moistureRating <= 50) {
+        return SOIL_DRY;
+    } else {
+        return SOIL_MOIST;
+    }
+}
+
+int BerryPatches_GetPatchYieldRating(const BerryPatch *patches, int patchID)
+{
+    return patches[patchID].yieldRating;
+}
+
+void BerryPatches_PlantInPatch(BerryPatch *patches, int patchID, const BerryGrowthData *growthData, int berryID)
+{
+    patches[patchID].berryID = berryID;
+    patches[patchID].growthStage = BERRY_GROWTH_STAGE_PLANTED;
+    patches[patchID].stageMinutesRemaining = CalcMinutesRemainingInStage(growthData, berryID, patches[patchID].mulchType);
+    patches[patchID].moistureMinutesRemaining = 0;
+    patches[patchID].replantCount = 0;
+    patches[patchID].yield = 0;
+    patches[patchID].moistureRating = MAX_MOISTURE_RATING;
+    patches[patchID].yieldRating = MAX_YIELD_RATING;
+    patches[patchID].isGrowing = TRUE;
+}
+
+void BerryPatches_ResetPatchMoisture(BerryPatch *patches, int patchID)
+{
+    patches[patchID].moistureRating = MAX_MOISTURE_RATING;
+}
+
+BOOL BerryPatches_IsPatchGrowing(const BerryPatch *patches, int patchID)
+{
+    return patches[patchID].isGrowing;
+}
+
+void BerryPatches_SetIsPatchGrowing(BerryPatch *patches, int patchID, BOOL isGrowing)
+{
+    patches[patchID].isGrowing = isGrowing;
+}
+
+enum MulchType BerryPatches_GetPatchMulchType(const BerryPatch *patches, int patchID)
+{
+    return patches[patchID].mulchType;
+}
+
+void BerryPatches_SetPatchMulchType(BerryPatch *patches, int patchID, enum MulchType mulchType)
+{
+    patches[patchID].mulchType = mulchType;
+}
+
+int BerryPatches_GetPatchYield(const BerryPatch *patches, int patchID)
+{
+    return patches[patchID].yield;
+}
+
+int BerryPatches_HarvestPatch(BerryPatch *patches, int patchID)
+{
+    int yield = patches[patchID].yield;
+    ZeroBerryPatch(&patches[patchID]);
+    return yield;
+}
+
+static void AdvancePatchGrowth(BerryPatch *berryPatch, const BerryGrowthData *growthData)
+{
+    switch (berryPatch->growthStage) {
+    case BERRY_GROWTH_STAGE_NONE:
+        GF_ASSERT(FALSE);
+        break;
+
+    case BERRY_GROWTH_STAGE_PLANTED:
+    case BERRY_GROWTH_STAGE_SPROUTED:
+    case BERRY_GROWTH_STAGE_GROWING:
+        berryPatch->growthStage++;
+        break;
+
+    case BERRY_GROWTH_STAGE_BLOOMING:
+        berryPatch->yield = CalcBerryYield(berryPatch, growthData);
+        if (berryPatch->yield < 2) {
+            berryPatch->yield = 2;
+        }
+
+        berryPatch->growthStage++;
+
+        break;
+
+    case BERRY_GROWTH_STAGE_FRUIT:
+        berryPatch->yield = 0;
+        berryPatch->growthStage = BERRY_GROWTH_STAGE_SPROUTED;
+        berryPatch->yieldRating = MAX_YIELD_RATING;
+        berryPatch->replantCount++;
+        if (berryPatch->replantCount == GetTotalReplantCountWithMulch(berryPatch)) {
+            ZeroBerryPatch(berryPatch);
+        }
+
+        break;
+    }
+}
+
+static void DrainPatchMoisture(BerryPatch *berryPatch, const BerryGrowthData *growthData, int minutesPassed)
+{
+    if (berryPatch->growthStage == BERRY_GROWTH_STAGE_FRUIT) {
+        return;
+    }
+
+    int drainageRate = CalcMoistureDrainRate(growthData, berryPatch->berryID, berryPatch->mulchType);
+    minutesPassed += berryPatch->moistureMinutesRemaining;
+
+    int hoursPassed = minutesPassed / 60;
+    berryPatch->moistureMinutesRemaining = minutesPassed % 60;
+
+    if (hoursPassed == 0) {
+        return;
+    }
+
+    if (berryPatch->moistureRating >= drainageRate * hoursPassed) {
+        berryPatch->moistureRating -= drainageRate * hoursPassed;
+        return;
+    }
+
+    if (berryPatch->moistureRating > 0) {
+        int hoursUntilPenalty = (berryPatch->moistureRating + (drainageRate - 1)) / drainageRate;
+        hoursPassed -= hoursUntilPenalty;
+        berryPatch->moistureRating = 0;
+    }
+
+    if (berryPatch->yieldRating > hoursPassed) {
+        berryPatch->yieldRating -= hoursPassed;
+    } else {
+        berryPatch->yieldRating = 0;
+    }
+}
+
+void BerryPatches_ElapseMinutes(BerryPatch *patches, const BerryGrowthData *growthData, int minutesPassed)
+{
+    int i;
+    s32 totalMinutes;
+    BerryPatch *patch;
+
+    for (i = 0; i < MAX_BERRY_PATCHES; i++) {
+        patch = &patches[i];
+
+        if (patch->berryID == 0 || patch->growthStage == BERRY_GROWTH_STAGE_NONE || patch->isGrowing == FALSE) {
+            continue;
+        }
+
+        int maxPatchLifetime = CalcMinutesRemainingInStage(growthData, patch->berryID, patch->mulchType) * CalcTotalStageCount(patch);
+        if (minutesPassed >= maxPatchLifetime) {
+            ZeroBerryPatch(patch);
+            continue;
+        }
+
+        totalMinutes = minutesPassed;
+        while (patch->growthStage != BERRY_GROWTH_STAGE_NONE && totalMinutes != 0) {
+            if (patch->stageMinutesRemaining > totalMinutes) {
+                DrainPatchMoisture(patch, growthData, totalMinutes);
+                patch->stageMinutesRemaining -= totalMinutes;
+                totalMinutes = 0;
+                break;
+            } else {
+                DrainPatchMoisture(patch, growthData, patch->stageMinutesRemaining);
+                AdvancePatchGrowth(patch, growthData);
+
+                totalMinutes -= patch->stageMinutesRemaining;
+                patch->stageMinutesRemaining = CalcMinutesRemainingInStage(growthData, patch->berryID, patch->mulchType);
+
+                if (patch->growthStage == BERRY_GROWTH_STAGE_FRUIT) {
+                    patch->stageMinutesRemaining *= GetHarvestTimeWithMulch(patch);
+                }
+            }
+        }
+    }
+}
diff --git a/src/game_start.c b/src/game_start.c
index 7d23864979..077d00ad2a 100644
--- a/src/game_start.c
+++ b/src/game_start.c
@@ -5,8 +5,7 @@
 
 #include "constants/game_options.h"
 
-#include "struct_decls/struct_02027854_decl.h"
-
+#include "berry_patches.h"
 #include "game_options.h"
 #include "heap.h"
 #include "location.h"
@@ -22,7 +21,6 @@
 #include "trainer_info.h"
 #include "unk_02017428.h"
 #include "unk_0201D15C.h"
-#include "unk_02027B70.h"
 #include "unk_0205C980.h"
 #include "unk_0206A8DC.h"
 #include "unk_0206B9D8.h"
@@ -153,7 +151,7 @@ static int ov57_021D0E90(OverlayManager *param0, int *param1)
 static void ov57_021D0EAC(int param0, SaveData *param1, BOOL param2)
 {
     u32 v0;
-    UnkStruct_02027854 *v1;
+    BerryPatch *v1;
     TrainerInfo *v2;
     GameTime *v3;
     RecordMixedRNG *v4;
@@ -176,8 +174,8 @@ static void ov57_021D0EAC(int param0, SaveData *param1, BOOL param2)
 
     TrainerInfo_SetAppearance(v2, sub_0205C9BC(v0, TrainerInfo_Gender(v2), 0));
 
-    v1 = sub_02027854(param1);
-    sub_02027B90(v1, param0, sBerryInitTable, NELEMS(sBerryInitTable) / 2);
+    v1 = MiscSaveBlock_GetBerryPatches(param1);
+    BerryPatches_Init(v1, param0, sBerryInitTable, NELEMS(sBerryInitTable) / 2);
 }
 
 static void TryLoadingSave(int unused, SaveData *saveData)
diff --git a/src/meson.build b/src/meson.build
index 5211152423..df40c166d0 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -104,7 +104,7 @@ pokeplatinum_c = files(
     'unk_0202631C.c',
     'savedata_misc.c',
     'game_options.c',
-    'unk_02027B70.c',
+    'berry_patches.c',
     'unk_02027F50.c',
     'unk_02027F84.c',
     'unk_02028124.c',
diff --git a/src/overlay048/ov48_022561C0.c b/src/overlay048/ov48_022561C0.c
index b3c08dca98..193dfe27e2 100644
--- a/src/overlay048/ov48_022561C0.c
+++ b/src/overlay048/ov48_022561C0.c
@@ -2,20 +2,18 @@
 #include <nitro/sinit.h>
 #include <string.h>
 
-#include "struct_decls/struct_02027854_decl.h"
-
 #include "overlay025/poketch_system.h"
 #include "overlay048/ov48_0225650C.h"
 #include "overlay048/struct_ov48_0225650C_1.h"
 #include "overlay048/struct_ov48_0225650C_decl.h"
 
+#include "berry_patches.h"
 #include "bg_window.h"
 #include "heap.h"
 #include "inlines.h"
 #include "savedata_misc.h"
 #include "sys_task.h"
 #include "sys_task_manager.h"
-#include "unk_02027B70.h"
 #include "unk_0206AFE0.h"
 #include "vars_flags.h"
 
@@ -311,11 +309,11 @@ static BOOL ov48_022563D0(UnkStruct_ov48_0225621C *param0)
 
 static int ov48_02256408(UnkStruct_ov48_0225621C *param0)
 {
-    UnkStruct_02027854 *v0 = sub_02027854(PoketchSystem_GetSaveData(param0->poketchSys));
+    BerryPatch *v0 = MiscSaveBlock_GetBerryPatches(PoketchSystem_GetSaveData(param0->poketchSys));
     int v1, v2;
 
     for (v1 = 0, v2 = 0; v1 < (NELEMS(Unk_ov48_02256A38)); v1++) {
-        if ((sub_02027D84(v0, v1) == 1) && (sub_02027D04(v0, v1) == 5)) {
+        if ((BerryPatches_IsPatchGrowing(v0, v1) == 1) && (BerryPatches_GetPatchGrowthStage(v0, v1) == 5)) {
             param0->unk_04.unk_0C[v2].unk_00 = Unk_ov48_02256A38[v1].unk_00;
             param0->unk_04.unk_0C[v2].unk_01 = Unk_ov48_02256A38[v1].unk_01;
 
diff --git a/src/overlay083/ov83_0223F7F4.c b/src/overlay083/ov83_0223F7F4.c
index 1112f98f23..26a6509536 100644
--- a/src/overlay083/ov83_0223F7F4.c
+++ b/src/overlay083/ov83_0223F7F4.c
@@ -3,7 +3,6 @@
 #include <nitro.h>
 #include <string.h>
 
-#include "struct_decls/struct_berry_data_decl.h"
 #include "struct_defs/struct_0202A93C.h"
 
 #include "overlay083/struct_ov83_0223DB4C_sub1.h"
diff --git a/src/overlay085/ov85_02241440.c b/src/overlay085/ov85_02241440.c
index 0bde7a5341..f981e0aa2b 100644
--- a/src/overlay085/ov85_02241440.c
+++ b/src/overlay085/ov85_02241440.c
@@ -4,7 +4,6 @@
 #include <string.h>
 
 #include "struct_decls/struct_0200C440_decl.h"
-#include "struct_decls/struct_berry_data_decl.h"
 #include "struct_defs/struct_020972FC.h"
 #include "struct_defs/struct_02099F80.h"
 
@@ -223,7 +222,7 @@ int ov85_02241440(OverlayManager *param0, int *param1)
     memset(v0, 0, sizeof(UnkStruct_ov85_022417E4));
     v0->unk_1F8 = OverlayManager_Args(param0);
     v0->unk_00 = BgConfig_New(36);
-    v0->unk_1FC = BerryData_LoadDataByNarcMemberIndex(v0->unk_1F8->unk_08, 36);
+    v0->unk_1FC = BerryData_Load(v0->unk_1F8->unk_08, 36);
 
     sub_0208C120(0, 36);
 
@@ -854,7 +853,7 @@ static void ov85_02241F0C(UnkStruct_ov85_022417E4 *param0)
     NARC *v0;
 
     Heap_FreeToHeap(param0->unk_1FC);
-    param0->unk_1FC = BerryData_LoadDataByNarcMemberIndex(param0->unk_1F8->unk_08, 36);
+    param0->unk_1FC = BerryData_Load(param0->unk_1F8->unk_08, 36);
     ov85_02241CD0(param0);
 
     v0 = NARC_ctor(NARC_INDEX_GRAPHIC__NTAG_GRA, 36);
diff --git a/src/savedata_misc.c b/src/savedata_misc.c
index 78b4aff04e..8aabdbb90d 100644
--- a/src/savedata_misc.c
+++ b/src/savedata_misc.c
@@ -7,9 +7,9 @@
 
 #include "struct_defs/sentence.h"
 
+#include "berry_patches.h"
 #include "unk_02014A84.h"
 #include "unk_02014D38.h"
-#include "unk_02027B70.h"
 #include "unk_02027F50.h"
 
 int MiscSaveBlock_SaveSize(void)
@@ -21,7 +21,7 @@ void MiscSaveBlock_Init(MiscSaveBlock *miscSave)
 {
     MI_CpuClearFast(miscSave, sizeof(MiscSaveBlock));
 
-    sub_02027B70(miscSave->unk_00);
+    BerryPatches_Clear(miscSave->berryPatches);
     sub_02027F50(&miscSave->unk_680);
 
     MI_CpuFill16(miscSave->rivalName, CHAR_EOS, TRAINER_NAME_LEN + 1);
@@ -49,10 +49,10 @@ const MiscSaveBlock *SaveData_MiscSaveBlockConst(const SaveData *saveData)
     return SaveData_SaveTableConst(saveData, SAVE_TABLE_ENTRY_MISC);
 }
 
-UnkStruct_02027854 *sub_02027854(SaveData *saveData)
+BerryPatch *MiscSaveBlock_GetBerryPatches(SaveData *saveData)
 {
     MiscSaveBlock *miscSave = SaveData_SaveTable(saveData, SAVE_TABLE_ENTRY_MISC);
-    return miscSave->unk_00;
+    return miscSave->berryPatches;
 }
 
 UnkStruct_02027860 *sub_02027860(SaveData *saveData)
diff --git a/src/unk_02027B70.c b/src/unk_02027B70.c
deleted file mode 100644
index 6aee557f83..0000000000
--- a/src/unk_02027B70.c
+++ /dev/null
@@ -1,334 +0,0 @@
-#include "unk_02027B70.h"
-
-#include <nitro.h>
-#include <string.h>
-
-#include "struct_decls/struct_berry_data_decl.h"
-#include "struct_defs/struct_02027854.h"
-#include "struct_defs/struct_02027BF4.h"
-
-#include "berry_data.h"
-#include "heap.h"
-#include "narc.h"
-
-static void sub_02027C50(UnkStruct_02027854 *param0);
-static int sub_02027C7C(const UnkStruct_02027BF4 *param0, int param1, int param2);
-
-void sub_02027B70(UnkStruct_02027854 *param0)
-{
-    int v0;
-
-    MI_CpuClear8(param0, sizeof(UnkStruct_02027854) * 128);
-
-    for (v0 = 0; v0 < 128; v0++) {
-        param0[v0].unk_01 = 0;
-        param0[v0].unk_00 = 0;
-    }
-}
-
-void sub_02027B90(UnkStruct_02027854 *param0, int param1, const u16 *param2, int param3)
-{
-    int v0;
-    UnkStruct_02027BF4 *v1 = sub_02027BF4(param1);
-
-    for (v0 = 0; v0 < 128 || v0 < param3; v0++) {
-        sub_02027C50(&param0[v0]);
-        param0[v0].unk_00 = param2[v0 * 2] - 149 + 1;
-        param0[v0].unk_01 = 5;
-        param0[v0].unk_02 = sub_02027C7C(v1, param0[v0].unk_00, param0[v0].unk_0C) * 4;
-        param0[v0].unk_08 = param2[v0 * 2 + 1];
-        param0[v0].unk_0A = 100;
-        param0[v0].unk_0B = 3;
-    }
-
-    Heap_FreeToHeap(v1);
-}
-
-UnkStruct_02027BF4 *sub_02027BF4(int param0)
-{
-    int v0;
-    UnkStruct_02027BF4 *v1;
-    BerryData *v2;
-    NARC *v3;
-
-    v3 = BerryData_NARC_ctor(param0);
-    v1 = Heap_AllocFromHeap(param0, sizeof(UnkStruct_02027BF4) * 64);
-
-    for (v0 = 0; v0 < 64; v0++) {
-        v2 = sub_020973A8(v3, v0, param0);
-
-        v1[v0].unk_00 = BerryData_GetAttribute(v2, 3);
-        v1[v0].unk_01 = BerryData_GetAttribute(v2, 4);
-        v1[v0].unk_02 = BerryData_GetAttribute(v2, 2);
-
-        Heap_FreeToHeap(v2);
-    }
-
-    BerryData_NARC_dtor(v3);
-    return v1;
-}
-
-static void sub_02027C50(UnkStruct_02027854 *param0)
-{
-    param0->unk_00 = 0;
-    param0->unk_01 = 0;
-    param0->unk_02 = 0;
-    param0->unk_04 = 0;
-    param0->unk_06 = 0;
-    param0->unk_08 = 0;
-    param0->unk_0A = 0;
-    param0->unk_0B = 0;
-    param0->unk_0C = 0;
-    param0->unk_0D = 0;
-}
-
-static int sub_02027C68(UnkStruct_02027854 *param0, const UnkStruct_02027BF4 *param1)
-{
-    return param1[param0->unk_00 - 1].unk_02 * param0->unk_0B;
-}
-
-static int sub_02027C7C(const UnkStruct_02027BF4 *param0, int param1, int param2)
-{
-    int v0;
-
-    v0 = param0[param1 - 1].unk_00 * 60;
-
-    if (param2 == 1) {
-        v0 = (v0 * 3) / 4;
-    } else if (param2 == 2) {
-        v0 = v0 + (v0 / 2);
-    }
-
-    return v0;
-}
-
-static int sub_02027CA8(const UnkStruct_02027BF4 *param0, int param1, int param2)
-{
-    int v0 = param0[param1 - 1].unk_01;
-
-    if (param2 == 2) {
-        return v0 / 2;
-    } else if (param2 == 1) {
-        return v0 + v0 / 2;
-    } else {
-        return v0;
-    }
-}
-
-static int sub_02027CCC(const UnkStruct_02027854 *param0)
-{
-    if (param0->unk_0C == 3) {
-        return 4 + 2;
-    } else {
-        return 4;
-    }
-}
-
-static int sub_02027CDC(const UnkStruct_02027854 *param0)
-{
-    if (param0->unk_0C == 4) {
-        return 10 + 5;
-    } else {
-        return 10;
-    }
-}
-
-static int sub_02027CEC(UnkStruct_02027854 *param0)
-{
-    return 1 + (1 + 1 + 1 + sub_02027CCC(param0)) * sub_02027CDC(param0);
-}
-
-int sub_02027D04(const UnkStruct_02027854 *param0, int param1)
-{
-    return param0[param1].unk_01;
-}
-
-int sub_02027D10(const UnkStruct_02027854 *param0, int param1)
-{
-    return param0[param1].unk_00;
-}
-
-int sub_02027D18(const UnkStruct_02027854 *param0, int param1)
-{
-    int v0;
-
-    v0 = param0[param1].unk_0A;
-
-    if (v0 == 0) {
-        return 0;
-    } else if (v0 <= 50) {
-        return 1;
-    } else {
-        return 2;
-    }
-}
-
-int sub_02027D34(const UnkStruct_02027854 *param0, int param1)
-{
-    return param0[param1].unk_0B;
-}
-
-void sub_02027D40(UnkStruct_02027854 *param0, int param1, const UnkStruct_02027BF4 *param2, int param3)
-{
-    param0[param1].unk_00 = param3;
-    param0[param1].unk_01 = 1;
-    param0[param1].unk_02 = sub_02027C7C(param2, param3, param0[param1].unk_0C);
-    param0[param1].unk_04 = 0;
-    param0[param1].unk_06 = 0;
-    param0[param1].unk_08 = 0;
-    param0[param1].unk_0A = 100;
-    param0[param1].unk_0B = 5;
-    param0[param1].unk_0D = 1;
-}
-
-void sub_02027D78(UnkStruct_02027854 *param0, int param1)
-{
-    param0[param1].unk_0A = 100;
-}
-
-BOOL sub_02027D84(const UnkStruct_02027854 *param0, int param1)
-{
-    return param0[param1].unk_0D;
-}
-
-void sub_02027D90(UnkStruct_02027854 *param0, int param1, BOOL param2)
-{
-    param0[param1].unk_0D = param2;
-}
-
-int sub_02027D9C(const UnkStruct_02027854 *param0, int param1)
-{
-    return param0[param1].unk_0C;
-}
-
-void sub_02027DA8(UnkStruct_02027854 *param0, int param1, int param2)
-{
-    param0[param1].unk_0C = param2;
-}
-
-int sub_02027DB4(const UnkStruct_02027854 *param0, int param1)
-{
-    return param0[param1].unk_08;
-}
-
-int sub_02027DC0(UnkStruct_02027854 *param0, int param1)
-{
-    int v0;
-
-    v0 = param0[param1].unk_08;
-    sub_02027C50(&param0[param1]);
-
-    return v0;
-}
-
-static void sub_02027DD4(UnkStruct_02027854 *param0, const UnkStruct_02027BF4 *param1)
-{
-    switch (param0->unk_01) {
-    case 0:
-        GF_ASSERT(0);
-        break;
-    case 1:
-    case 2:
-    case 3:
-        param0->unk_01++;
-        break;
-    case 4:
-        param0->unk_08 = sub_02027C68(param0, param1);
-
-        if (param0->unk_08 < 2) {
-            param0->unk_08 = 2;
-        }
-
-        param0->unk_01++;
-        break;
-    case 5:
-        param0->unk_08 = 0;
-        param0->unk_01 = 2;
-        param0->unk_0B = 5;
-        param0->unk_06++;
-
-        if (param0->unk_06 == sub_02027CDC(param0)) {
-            sub_02027C50(param0);
-        }
-        break;
-    }
-}
-
-static void sub_02027E40(UnkStruct_02027854 *param0, const UnkStruct_02027BF4 *param1, int param2)
-{
-    int v0;
-    int v1;
-    int v2;
-
-    if (param0->unk_01 == 5) {
-        return;
-    }
-
-    v1 = sub_02027CA8(param1, param0->unk_00, param0->unk_0C);
-    param2 += param0->unk_04;
-
-    v0 = param2 / 60;
-    param0->unk_04 = param2 % 60;
-
-    if (v0 == 0) {
-        return;
-    }
-
-    if (param0->unk_0A >= v1 * v0) {
-        param0->unk_0A -= v1 * v0;
-        return;
-    }
-
-    if (param0->unk_0A > 0) {
-        v2 = (param0->unk_0A + (v1 - 1)) / v1;
-        v0 -= v2;
-        param0->unk_0A = 0;
-    }
-
-    if (param0->unk_0B > v0) {
-        param0->unk_0B -= v0;
-    } else {
-        param0->unk_0B = 0;
-    }
-}
-
-void sub_02027EAC(UnkStruct_02027854 *param0, const UnkStruct_02027BF4 *param1, int param2)
-{
-    int v0;
-    s32 v1;
-    UnkStruct_02027854 *v2;
-
-    for (v0 = 0; v0 < 128; v0++) {
-        v2 = &param0[v0];
-
-        if ((v2->unk_00 == 0) || (v2->unk_01 == 0) || (v2->unk_0D == 0)) {
-            continue;
-        }
-
-        if (param2 >= sub_02027C7C(param1, v2->unk_00, v2->unk_0C) * sub_02027CEC(v2)) {
-            sub_02027C50(v2);
-            continue;
-        }
-
-        v1 = param2;
-
-        while (v2->unk_01 != 0 && v1 != 0) {
-            if (v2->unk_02 > v1) {
-                sub_02027E40(v2, param1, v1);
-                v2->unk_02 -= v1;
-                v1 = 0;
-                break;
-            } else {
-                sub_02027E40(v2, param1, v2->unk_02);
-                sub_02027DD4(v2, param1);
-
-                v1 -= v2->unk_02;
-                v2->unk_02 = sub_02027C7C(param1, v2->unk_00, v2->unk_0C);
-
-                if (v2->unk_01 == 5) {
-                    v2->unk_02 *= sub_02027CCC(v2);
-                }
-            }
-        }
-    }
-}
diff --git a/src/unk_02055C50.c b/src/unk_02055C50.c
index 6480fc8c7d..ad3e9b59c1 100644
--- a/src/unk_02055C50.c
+++ b/src/unk_02055C50.c
@@ -3,11 +3,9 @@
 #include <nitro.h>
 #include <string.h>
 
-#include "struct_decls/struct_02027854_decl.h"
 #include "struct_decls/struct_020508D4_decl.h"
 #include "struct_decls/struct_02055CBC_decl.h"
 #include "struct_decls/struct_02061AB4_decl.h"
-#include "struct_defs/struct_02027BF4.h"
 
 #include "field/field_system.h"
 #include "field/field_system_sub2_t.h"
@@ -17,6 +15,7 @@
 #include "overlay005/struct_ov5_021DF47C_decl.h"
 
 #include "bag.h"
+#include "berry_patches.h"
 #include "core_sys.h"
 #include "easy3d.h"
 #include "heap.h"
@@ -25,7 +24,6 @@
 #include "savedata_misc.h"
 #include "sys_task_manager.h"
 #include "unk_0201CED8.h"
-#include "unk_02027B70.h"
 #include "unk_020508D4.h"
 #include "unk_02054D00.h"
 #include "unk_020655F4.h"
@@ -34,7 +32,7 @@
 
 struct UnkStruct_02055CBC_t {
     int unk_00;
-    UnkStruct_02027BF4 *unk_04;
+    BerryGrowthData *unk_04;
     NNSG3dRenderObj unk_08;
     NNSG3dResMdl *unk_5C;
     NNSG3dResFileHeader *unk_60;
@@ -94,7 +92,7 @@ UnkStruct_02055CBC *sub_02055C8C(FieldSystem *fieldSystem, int param1)
     MI_CpuClear8(v0, sizeof(UnkStruct_02055CBC));
 
     v0->unk_00 = param1;
-    v0->unk_04 = sub_02027BF4(param1);
+    v0->unk_04 = BerryGrowthData_Init(param1);
 
     sub_02055D14(fieldSystem, v0);
     return v0;
@@ -109,18 +107,18 @@ void sub_02055CBC(UnkStruct_02055CBC *param0)
 
 void sub_02055CD4(FieldSystem *fieldSystem, int param1)
 {
-    UnkStruct_02027854 *v0;
-    UnkStruct_02027BF4 *v1;
+    BerryPatch *v0;
+    BerryGrowthData *v1;
 
     if (fieldSystem->unk_04 == NULL) {
-        v1 = sub_02027BF4(11);
-        v0 = sub_02027854(fieldSystem->saveData);
-        sub_02027EAC(v0, v1, param1);
+        v1 = BerryGrowthData_Init(11);
+        v0 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
+        BerryPatches_ElapseMinutes(v0, v1, param1);
         Heap_FreeToHeap(v1);
     } else {
         v1 = fieldSystem->unk_04->unk_18->unk_04;
-        v0 = sub_02027854(fieldSystem->saveData);
-        sub_02027EAC(v0, v1, param1);
+        v0 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
+        BerryPatches_ElapseMinutes(v0, v1, param1);
     }
 }
 
@@ -158,13 +156,13 @@ void sub_02055D94(FieldSystem *fieldSystem)
 {
     int v0 = 0;
     MapObject *v1;
-    UnkStruct_02027854 *v2 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v2 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     while (sub_020625B0(fieldSystem->mapObjMan, &v1, &v0, (1 << 0)) == 1) {
         if (sub_020677F4(sub_02062920(v1)) == 1) {
             if (sub_02055D54(fieldSystem, MapObject_PosVector(v1))) {
                 int v3 = sub_020629D8(v1, 0);
-                sub_02027D90(v2, v3, 1);
+                BerryPatches_SetIsPatchGrowing(v2, v3, 1);
             }
         }
     }
@@ -173,14 +171,14 @@ void sub_02055D94(FieldSystem *fieldSystem)
 BOOL sub_02055E00(FieldSystem *fieldSystem, MapObject *param1)
 {
     int v0, v1, v2;
-    UnkStruct_02027854 *v3 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v3 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    v2 = sub_02027D10(v3, v0);
-    v1 = sub_02027DB4(v3, v0);
+    v2 = BerryPatches_GetPatchBerryID(v3, v0);
+    v1 = BerryPatches_GetPatchYield(v3, v0);
 
-    sub_0206D914(fieldSystem, sub_02055C50(v2), sub_02027D34(v3, v0), v1);
-    sub_02027DC0(v3, v0);
+    sub_0206D914(fieldSystem, sub_02055C50(v2), BerryPatches_GetPatchYieldRating(v3, v0), v1);
+    BerryPatches_HarvestPatch(v3, v0);
     sub_02067834(param1);
 
     return Bag_TryAddItem(SaveData_GetBag(fieldSystem->saveData), sub_02055C50(v2), v1, 4);
@@ -189,82 +187,82 @@ BOOL sub_02055E00(FieldSystem *fieldSystem, MapObject *param1)
 void sub_02055E80(FieldSystem *fieldSystem, MapObject *param1, u16 param2)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    sub_02027DA8(v1, v0, sub_02055C80(param2));
+    BerryPatches_SetPatchMulchType(v1, v0, sub_02055C80(param2));
 }
 
 void sub_02055EAC(FieldSystem *fieldSystem, MapObject *param1, u16 param2)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    sub_02027D40(v1, v0, fieldSystem->unk_04->unk_18->unk_04, sub_02055C60(param2));
+    BerryPatches_PlantInPatch(v1, v0, fieldSystem->unk_04->unk_18->unk_04, sub_02055C60(param2));
 }
 
 void sub_02055EE0(FieldSystem *fieldSystem, MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    sub_02027D78(v1, v0);
+    BerryPatches_ResetPatchMoisture(v1, v0);
 }
 
 int sub_02055F00(const FieldSystem *fieldSystem, const MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    return sub_02027D04(v1, v0);
+    return BerryPatches_GetPatchGrowthStage(v1, v0);
 }
 
 int sub_02055F20(const FieldSystem *fieldSystem, const MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    return sub_02027D10(v1, v0);
+    return BerryPatches_GetPatchBerryID(v1, v0);
 }
 
 u16 sub_02055F40(const FieldSystem *fieldSystem, const MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    return sub_02055C50(sub_02027D10(v1, v0));
+    return sub_02055C50(BerryPatches_GetPatchBerryID(v1, v0));
 }
 
 u16 sub_02055F64(const FieldSystem *fieldSystem, const MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    return sub_02055C70(sub_02027D9C(v1, v0));
+    return sub_02055C70(BerryPatches_GetPatchMulchType(v1, v0));
 }
 
 int sub_02055F88(const FieldSystem *fieldSystem, const MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    return sub_02027D18(v1, v0);
+    return BerryPatches_GetPatchMoisture(v1, v0);
 }
 
 int sub_02055FA8(const FieldSystem *fieldSystem, const MapObject *param1)
 {
     int v0;
-    UnkStruct_02027854 *v1 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v1 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
 
     v0 = sub_020629D8(param1, 0);
-    return sub_02027DB4(v1, v0);
+    return BerryPatches_GetPatchYield(v1, v0);
 }
 
 u32 sub_02055FC8(const FieldSystem *fieldSystem, const MapObject *param1)
diff --git a/src/unk_0206CCB0.c b/src/unk_0206CCB0.c
index fa51df8324..12fb90045a 100644
--- a/src/unk_0206CCB0.c
+++ b/src/unk_0206CCB0.c
@@ -8,7 +8,6 @@
 
 #include "struct_decls/pokedexdata_decl.h"
 #include "struct_decls/struct_0202440C_decl.h"
-#include "struct_decls/struct_02027854_decl.h"
 #include "struct_decls/struct_02029C68_decl.h"
 #include "struct_decls/struct_0202A750_decl.h"
 #include "struct_decls/struct_party_decl.h"
@@ -33,6 +32,7 @@
 #include "savedata/save_table.h"
 
 #include "bag.h"
+#include "berry_patches.h"
 #include "charcode_util.h"
 #include "field_system.h"
 #include "heap.h"
@@ -51,7 +51,6 @@
 #include "trainer_info.h"
 #include "unk_0201D15C.h"
 #include "unk_0202631C.h"
-#include "unk_02027B70.h"
 #include "unk_020298BC.h"
 #include "unk_0202D7A8.h"
 #include "unk_0202E2CC.h"
@@ -2540,14 +2539,14 @@ static int sub_0206EBE8(FieldSystem *fieldSystem)
 
 static int sub_0206EC90(FieldSystem *fieldSystem, StringTemplate *param1, UnkStruct_ov6_022465F4 *param2)
 {
-    UnkStruct_02027854 *v0 = sub_02027854(fieldSystem->saveData);
+    BerryPatch *v0 = MiscSaveBlock_GetBerryPatches(fieldSystem->saveData);
     int v1, v2;
 
     v1 = sub_0206EBE8(fieldSystem);
     v2 = Unk_020F0074[v1 * 2 + 1];
     StringTemplate_SetLocationName(param1, 0, MapHeader_GetMapLabelTextID(v2));
 
-    switch (sub_02027D04(v0, v1)) {
+    switch (BerryPatches_GetPatchGrowthStage(v0, v1)) {
     case 5:
         return 36;
     case 4: