Common Horsechestnut
Aesculus hippocastanum
Common Horsechestnut (Aesculus hippocastanum) 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 40–65 ft wide, needs medium water, and prefers full sun to partial shade.
medium water50–75 ft tall and 40–65 ft wideDeer-resistantToxic to dogs
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At a glance
- Rating
- Recommended
- Botanical name
- Aesculus hippocastanum
- Variety / cultivar
- Common Horsechestnut
- Type
- Tree
- Mature size
- 50–75 ft tall and 40–65 ft wide
- Mature form
- Oval / upright
- Spacing / clearance
- ~65 ft of clearance
- Hardiness zones
- USDA 4–7
- Growth rate
- Moderate
- Lifespan
- Medium
- Water needs
- medium water
- Sun
- Best in full sun; tolerates partial shade.
- Colorado native
- No
- Foliage
- Deciduous
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- low
- Wind tolerance
- low
- Salt tolerance
- low
- Bloom color
- white
- Bloom time
- late spring
- Pollinator value
- high
Site factors to consider
- Critical: Cold HardinessThe average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.
- Critical: Salt ToleranceIt has low salt tolerance, so keep it back from de-iced sidewalks, roadsides, and softener runoff, where salt burns roots and leaf edges.
- Watch: SuckersIt throws up shoots from the roots and base, so plan on cutting suckers to keep it from turning into a thicket.
Wildlife & ecology
- Pollinator value
- high
- Deer
- Generally deer-resistant
Frequently asked questions
- Is Common Horsechestnut good for the Colorado Front Range?
- Yes, Common Horsechestnut is a well-suited tree for Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
- How big does Common Horsechestnut get?
- It matures to about 50–75 ft tall and 40–65 ft wide.
- How much room does Common Horsechestnut need?
- Give Common Horsechestnut about 65 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Common Horsechestnut grow into?
- Common Horsechestnut 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 Common Horsechestnut hardy on the Front Range?
- Common Horsechestnut is hardy in USDA 4–7. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range. That said, it carries a cold-hardiness caution: The average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.
- How much water does Common Horsechestnut need?
- It needs medium water once established.
- How fast does Common Horsechestnut grow?
- Common Horsechestnut is a moderate-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Common Horsechestnut live?
- Common Horsechestnut has a moderate lifespan for a Front Range tree. Actual lifespan varies with site, water, and care.
- Is Common Horsechestnut safe for dogs?
- No. Common Horsechestnut is considered toxic to dogs. Keep pets away and check with your vet.
- Is Common Horsechestnut deer-resistant?
- Common Horsechestnut is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.
Find Common Horsechestnut near you
See also
Related trees
Buckeye/Horsechestnut, Texas Buckeye (Western Buckeye)
Aesculus glabra var. arguta
Buckeye/Horsechestnut, Ohio Buckeye
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Buckeye/Horsechestnut, Yellow Buckeye
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Buckeye/Horsechestnut, 'Briotti', 'Fort McNair'
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Coffeetree, Kentucky Coffeetree
Gymnocladus dioicus
Oak, Red
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