What the mother plant actually does
- It unlocks an Aokema research entry; do not expect it to behave like a normal seed in a basin.
- Every completed research awards five seeds immediately.
- The shop starts stocking the seed on the next day only when the current season is suitable.
- Plant Research Reports come from processing crop products in the Plant Analyzer.
Avoid a hidden dependency
Some research consumes crops unlocked by earlier research. Watermelon needs Tomato, and Tomato research needs Potato, so unlock the dependency chain before treating a missing shop listing as a bug.
All seed mother plants and research costs
| Crop | Mother-plant location | Research materials after submission |
|---|---|---|
| Turnip | Interact with the deer statue deep in the forest; see the Town map | 10 Reports + 10 Cabbage |
| Pumpkin | Show Lamp Man at least 25 Salmon during the annual Salmon Festival | 5 Reports + 30 Thorns |
| Green Onion | Plant Research Institute entrance trash can; 10% chance, 15-search pity | 10 Reports + 10 Thorns |
| Cucumber | Buy from Kumasang for 2,000 G | 5 Reports + 30 Rock Wood |
| Corn | Chance drop when startling perched birds in world areas | 5 Reports + 10 Rice + 10 Wheat |
| Chili | Chance drop from Seed Carriers in Doloc River Valley | 10 Reports + 5 Coffee Beans + 5 Tea Leaves |
| Mushroom | Chest in a hidden Wetlands room; use the Wetlands mapWetlands MapA route aid that reveals Wetlands rooms and exploration structure. | 10 Reports + 10 Crimson Fungi + 10 Yellow Fungi |
| Mint | Chest at the top of the west cliff outside town | 10 Reports + 10 Kelp |
| Strawberry | Buy from the Witch for 5,000 G; Wetlands Lily-Pond room, 18:00–23:55 | 5 Reports + 20 Blueberries |
| Watermelon | Ridge Valley hidden-room chest; the area is reachable only in the Dry Season | 15 Reports + 5 Tomatoes |
| Grape | Chest beside the highest point of River Valley, upper-right on the map | 10 Reports + 15 Hops |
SOURCES, NOT DECORATION
Sources checked
These links back up the mechanic, route, or noted uncertainty. Page wording, structure, and diagrams are original work.
- 01Structured referenceHuiji Wiki: Seed Research
Updated structured list of all 11 mother-plant locations, research costs, shop timing, and dependency chains.
- 02Video walkthroughBilibili: all seed mother plants and Eden Fruit
Twenty-four-part field walkthrough used to cross-check the location-by-location collection route.
- 03Video walkthroughBilibili: formal-version Corn mother plant route
August 2026 formal-version playthrough segment confirming the Corn mother-plant unlock remains in the current route.
