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Yellow Buckeye

Aesculus flava

Compiled by · Reviewed against the 2024 Front Range Tree Recommendation List, CSU Extension & Plant Select® · Updated 2026-09-17

Yellow Buckeye (Aesculus flava) is a tree suited to the Colorado Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 50–75 ft tall and 30–50 ft wide, needs medium water, and prefers full sun to partial shade.

Site fitRecommended
medium water50–75 ft tall and 30–50 ft wideDeer-resistantToxic to dogs

Photos

At a glance

Will it survive here?

Hardiness zones
USDA 4–7
Water needs
medium water
Sun
Best in full sun; tolerates partial shade.
Soil
clay, loam, sandy
Soil pH
6.0–8.2
Hail tolerance
low
Wind tolerance
moderate
Salt tolerance
moderate

How big, what shape?

Mature size
50–75 ft tall and 30–50 ft wide
Mature form
Oval / upright
Spacing / clearance
~50 ft of clearance
Growth rate
Moderate
Lifespan
Medium

What it looks like, and when

Bloom time
late spring
Bloom color
yellow
Foliage
Deciduous

Who else benefits

Pollinator value
high
Deer
Generally deer-resistant
Colorado native
No

Site factors to consider

  • Watch: SuckersIt throws up shoots from the roots and base, so plan on cutting suckers to keep it from turning into a thicket.

Frequently asked questions

Is Yellow Buckeye good for the Colorado Front Range?
Yes, Yellow Buckeye is a well-suited tree for Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
How big does Yellow Buckeye get?
It matures to about 50–75 ft tall and 30–50 ft wide.
How much room does Yellow Buckeye need?
Give Yellow Buckeye about 50 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
What shape does Yellow Buckeye grow into?
Yellow Buckeye typically grows into an upright-oval crown, taller than it is wide. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.
Is Yellow Buckeye hardy on the Front Range?
Yellow Buckeye is hardy in USDA 4–7. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
How much water does Yellow Buckeye need?
It needs medium water once established.
How fast does Yellow Buckeye grow?
Yellow Buckeye is a moderate-growing tree. Growth rate depends on water and site conditions on the Front Range.
How long does Yellow Buckeye live?
Yellow Buckeye has a moderate lifespan for a Front Range tree. Actual lifespan varies with site, water, and care.
Is Yellow Buckeye safe for dogs?
No. Yellow Buckeye is considered toxic to dogs. Keep pets away and check with your vet.
Is Yellow Buckeye deer-resistant?
Yellow Buckeye is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.

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