I suspect the answer is no but is anyone aware of a dwarf chestnut varieties besides the chinquapin? Like say a smallish Chinese hybrid variety? I don’t have a lot of room but I’d really like some chestnuts. I have maybe a 40 ft circle to plant them which is pretty tight. Hardly any websites list the size of their chestnut varieties which leads me to believe that they’re all huge. I haven’t seen any grafted on dwarfing rootstock like fruittrees.
I'm kind of always looking for the same thing. This Google go-round, I'm seeing lots of references to "Anny's Summer Red" which looks like a European-style chestnut. The European sellers are saying it will top out at 2-3 meters high, while the American ones suggest 4-6. I'm tempted!
Oikos Tree Crops carries a hybrid of Chinese chestnut and Allegheny chinquapin / chinkapin that sounds fairly dwarfing. I wish somebody in the Ozarks would try a similar cross with the Ozark chinquapin. I have a half-acre suburbanish lot but still want to grow chestnuts! In the absence of my dream Chinese chestnut x Ozark chinquapin cross, I guess I'll have to give those Korean chestnuts a look.
Have you thought about a restrictive pruning regime applied to a standard chestnut?
I have heard that commercial orchards tend to prune to 40-50ft, not sure how general that practice is...but maybe you could get satisfactory performance while keeping it much smaller?
'Theoretically this level of creeping Orwellian dynamics should ramp up our awareness, but what happens instead is that each alert becomes less and less effective because we're incredibly stupid.' - Jerry Holkins
Yes, the folks working on preserving the Ozark chinquapin seem great (though I doubt they'd welcome my idea of crossing it). The Ozark chinquapin is also taller than the Allegheny, so it's possible a cross wouldn't be that dwarfing, anyway.
Pruning is a good thought, too. Worth doing some research to see if anybody has experimented with that.