I'll be able to tell you after mine is established. I grew several from seed three years ago in a nursery bed that showed scorch, however they were young & tender & in full sun. Last summer I I planted one to my landscape and the scorch has lessened quite a bit.

One comment......wow do these grow fast from seed. I mean 2 feet the first year on the most vigorous of the batch. A slight botanical difference in mine: I grew AT var. pubescens.

Dax

I don't have any first-hand experience with turbinata, but Reeseville Ridge Nursery's (WI) catalog has this description: "A beautiful Horse Chestnut with great ability to withstand our dry summers and the drought of 1988 with all the foliage in great shape. A real standout when most Aesculus are bald in August from scorch and dry wind."

I grew both from Reeseville for 3 years and both faired poorly in my sandy soil compared to my other Aesculus. I just didn't have the patience so I got rid of both. Other cultivars with A. octandra parentage have better fall color.

Not sure why these are both listed as zone 4. Johnsons Nursery was growing these for a little bit but no longer offers them. Not sure if they had issues or no demand.

Aesculus turbinata
Japanese Horse Chestnut
A beautiful Horse Chestnut with great ability to withstand our dry summers and the drought of
1988 with all the foliage in great shape. A real standout when most Aesculus are bald in August
from scorch and dry wind. Zone 4. Treepots 6.00

Aesculus turbinata pubescens
Chinese Horse Chestnut
In form, this tree is similar to European Horse Chestnut. Its advantage is much better tolerance to
Drought This was one of two species of tree Aesculus to hold leaf through our severe droughts of
1988 and 1991. Zone 4. Treepots 6.00

Maybe I'll stick with A. flava (octandra) as I have seen first-hand that they do well here.

A. turbinata does great here in Illinois. No leaf problems at all, and holds its leaves through the fall, which is not true of A. flava. Very fast grower. I love the large leaves and flowers.

Kevin - A. flava (Yellow Buckeye) doesn't hold it's leaves until fall for you?

That's odd, considering it typically does here in Maryland (it's not even native here). They get a bit tattered, but nothing like A. glabra or A. hippocastanum, both of which are basically bare by Labor Day.

No, mine are the earliest to drop leaves of the horsechestnuts on my property--Autumn Splendor, Homestead, A. pavia, A. chinensis, A. turbinata, A. flava. I don't have any glabra, which gets scorched up by August here.