"Onion Prince - Obtained from gardening - combination unknown
Eggplant Knight - Obtained from gardening - combination unknown
Garlic Jester - Obtained from gardening - combination unknown
King Tomato - Obtained from gardening - combination unknown
Mandragora Queen - Obtained from gardening - combination unknown"
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Are confirmed from gardening. It says so in the patch notes. Also Miniature minecart comes from a level 50 miner venture (XIV I believe)

The following items can now be obtained through gardening:
Gysahl Greens / Krakka Root / Thavnairian Onion / Curiel Root / Sylkis Bud / Mimett Gourd / Tantalplant / Pahsana Fruit / Onion Prince / Eggplant Knight / Garlic Jester / King Tomato / Mandragora Queen / Pear Roselle