Short answer: Jas loves Ancient Doll, Fairy Box, Fairy Rose, Pink Cake, Plum Pudding, Strange Doll (green) and Strange Doll (yellow), plus universal loves such as a Prismatic Shard. Jas's birthday is Summer 4 (a Thursday), when a loved gift is worth 640 friendship points instead of 80. The cheapest liked gift you can grow for Jas is Tulip, grown in Spring and kept until then.
Quick facts
- Birthday: Summer 4, a Thursday.
- Marriage: no, but friendship still goes up to 10 hearts.
- Own gift lists: 7 loved, 2 liked and 4 hated by name, and 1 exception to the universal lists.
- Crops to grow for Jas: 1 loved and 4 liked.
What Jas loves
| Gift | Also loved by |
|---|---|
| Ancient Doll | Nobody else |
| Fairy Box | Nobody else |
| Fairy Rose | Evelyn |
| Pink Cake | Haley, Marnie, Vincent |
| Plum Pudding | Nobody else |
| Strange Doll (green) | Nobody else |
| Strange Doll (yellow) | Nobody else |
Only Jas loves Ancient Doll, Fairy Box, Plum Pudding, Strange Doll (green) and Strange Doll (yellow).
The universal loves count too: Golden Pumpkin, Magic Rock Candy, Pearl, Prismatic Shard, Rabbit's Foot and Stardrop Tea. What "universal" means and the points for each kind of gift: gift rules for every villager.
What Jas likes
Jas likes Coconut and Daffodil, and All Milk. A liked gift (+45) is the easy fallback when you have nothing loved: 4 crops count as liked for Jas.
Birthday gift plan for Summer 4
Nothing from shop seeds is ready in Summer by day 4, so grow the gift in Spring and keep it in a chest: crops never spoil. Cheapest choices: Tulip (liked, sells for 30g) and Blue Jazz (liked, sells for 50g).
The loved crop (Fairy Rose) can't be grown from seed by Summer 4; harvest one in Fall and keep it in a chest, since crops never spoil.
Other Summer birthdays, so one trip can cover several: Gus (Summer 8), Maru (Summer 10), Alex (Summer 13), Sam (Summer 17), Demetrius (Summer 19), Dwarf (Summer 22), Willy (Summer 24), Leo (Summer 26).
Gifts to avoid
Jas hates Clay, Piña Colada, Triple Shot Espresso and Wild Horseradish, and All Artisan Goods (except Honey, Jelly & Oil) (-40 each), and dislikes Dandelion, Ginger, Hazelnut, Holly, Leek, Quartz, Snow Yam and Winter Root, and All Eggs; All Fruit (except Coconut & Fruit Tree Fruit); All Vegetables (except Hops & Wheat); All Mushrooms (except Red) (-20). On top of that come the universal hates, such as trash and bait.
Where Jas breaks the universal rules
These items are universal for most villagers, but not for Jas:
- Piña Colada: Jas hates it, though most villagers like it.
To check any single item, with the points for each quality and day, open the Gift Finder for Jas.