Japanese / European hybrid · Seed-family seedling
Tanzawa Family
Very large nuts, very early ripening, and it bears young. A specialty family with real advantages.
| Species | Castanea crenata |
|---|---|
| Seed parent origin | Japanese chestnut selection. |
| Nut size | Very large |
| Ripening window | Early season |
| Cold hardiness | Zone 5, protected site |
| Blight resistance | Moderate. Japanese chestnut carries partial resistance |
| Best for | Early-season deer hunting and growers chasing maximum nut size. |
About this seed family
Japanese chestnuts are known for producing the largest nuts in the genus and for bearing at a young age.
Tanzawa is one of the recognized Japanese selections, valued for size and early ripening.
The trade-off is peelability. Japanese-type nuts often have a more clinging inner skin than Chinese types, which matters for kitchen and market use.
For deer hunters. Enormous nuts dropping early. Strong draw for early season.
Straight talk. Peeling can be harder than Chinese types. Site it carefully in Iowa.
What you are actually buying
This is a seedling grown from a nut produced by a named Tanzawa Family parent tree. It is not a grafted clone and we will never sell it as one. It inherits roughly half its genetics from that known mother tree and half from whatever pollinated her, which means you get a real head start on quality plus the seedling advantages of a natural taproot, lower cost and genetic diversity across your planting.
Every tree is started in our insulated shed under grow lights and grown in a 4 inch by 12 inch deep tree pot, so you receive a well-rooted young tree with a developing taproot rather than a root-bound plug.
Plant more than one. Chestnuts need cross pollination from another chestnut nearby to set nuts. Plant at least two, ideally five or more, within a couple hundred feet of each other. Mixing seed families also staggers your drop window across the fall instead of dumping the whole crop in two weeks.
Similar families
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Qing Family
If you only plant one family, plant this one. Qing is the all-around standard: sweet, easy-peeling nuts, dependable production, and genetics that have already proven themselves through Iowa winters.
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Peach Family
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Gideon Family
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