Why You Can't Buy Fuji Persimmon Seeds in Bulk: Hybrid Reality & Grafting

"Fuji" persimmon is a trademarked hybrid cultivar (Diospyros kaki 'Fuyu' is the common non-astringent type; "Fuji" may refer to a specific selection). Here's why seed isn't sold.

Hybrid Genetics

• Named persimmon varieties are clones—propagated by grafting onto seedling rootstock (D. lotus, D. virginiana).
• Seeds from hybrid fruit are genetically unstable. Offspring vary wildly: astringent vs. non-astringent, small vs. large, early vs. late.
• No nursery sells "Fuji persimmon seed" because it doesn't breed true.

Commercial Production

1. Rootstock grown from seed (1–2 years).
2. Desired cultivar budded/grafted onto rootstock.
3. Tree fruits in 3–4 years (vs. 5–7+ from seed).
4. Uniform quality, known harvest window, disease resistance from rootstock.

If You Want to Experiment

• Clean and stratify fresh seeds 60–90 days cold/moist.
• Sow spring; expect high variability.
• Use seedlings as rootstock for grafting known varieties later.

For a reliable 'Fuyu' or 'Jiro' tree, buy grafted. For a breeding project, grow the seed—but don't expect the parent's fruit.