Street Trees Part 2 – Aesculus (Buckeye)

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 Aesculus sp. including Buckeye


A flava tree


and Common Horsechestnut


a hip


have gotten a bad rap due to Guignardia aesculi (Guignardia leaf spot on Aesculus)




Actually, some are more resistant than others. We hope to highlight some that could be considered potential street trees.

Aesculus x arnoldiana ‘Autumn Splendor’


a splendor


which is a hybrid including Aesculus glabra, A. flava and A. pavia. Autumn Splendor Buckeye can have a dark red fall color, yellow-red flowers which appears in May


a splendor flower


and is resistant to scorch.

Aesculus flava which is Yellow Buckeye has yellow flowers in the spring


flava flower 1


and orange fall color


flava fall


and will become a very large tree


a flava tree


and is a perfect replacement for Common Horsechestnut but not along a street. In addition, the fruits


flava fruit

Flava seed


can put a dent in cars so better suited for a park or large space.


Aesculus pavia, Red Buckeye is a smaller tree



Pavia osu

that produces red flowers in May


pavia flower


and may develop into brown buckeyes in the fall.


pavia seed


It prefers moist, well-drained soil.

Although Aesculus x 'Homestead' has limited availability, it might be worth investigating since it shows resistance to Guignardia aesculi (Guignardia leaf spot on Aesculus):


A homestead leaf

homestead fall


Aesculus hitppocastanum, Common Horsechestnut


red horsechestnut


is predisposed to show symtoms of Guignardia aesculi (Guignardia leaf spot on Aesculus).

A. x carnea ‘Briotii’,




A. x carnea ‘Fort McNair’


Ft Mcnair


are less problematic than the straight species A. hippocastanum to Guignardia aesculi (Guignardia leaf spot on Aesculus) but some years can defoliate mid to late summer.

A. hippocastanum ‘Baumannii’, 




tends to have the cleanest foliage and a double white flower.

Because genetics include Common Horsechestnut, they are is predisposed to symptoms of Guignardia aesculi (Guignardia leaf spot on Aesculus)


carnea w blotch


Aesculus glabra, Ohio Buckeye is the state tree but needs space to be appropriate for use as a street tree.


 A. glabra in bloom


In closing, consider Aesculus as a possible choice where soil is moist and well-drained. Add one to your list.