Japanese / European hybrid · Seed-family seedling

Whitten South Family

The size-focused half of the Whitten line. Best on warm, sheltered southern Iowa ground.

Species	Hybrid chestnut
Seed parent origin	Whitten line, selected from the southern parent trees.
Nut size	Large
Ripening window	Mid to late season
Cold hardiness	Zone 5b and warmer. The most site-sensitive Whitten selection
Blight resistance	Moderate
Best for	Southern Iowa and warm microclimates.

About this seed family

Southern-origin selections tend to produce larger nuts and grow faster, but they break dormancy earlier and are more exposed to late spring frost.

Best suited to southern Iowa, south-facing slopes, and sites with good air drainage.

Later ripening extends the tail end of your drop calendar.

What you are actually buying

This is a seedling grown from a nut produced by a named Whitten South 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.