Alert: Limited Online Availability

Now that fall is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

Autumn Splendor Horse Chestnut

Aesculus x arnoldiana 'Autumn Splendor'

A beautiful, medium sized, cold hardy, specimen tree with a dense, rounded crown and glossy, emerald green foliage that provides brilliant maroon-red fall color. Fan-like leaves are comprised of multiple, lance-shaped, toothy leaflets that are resistant to summer leaf scorch. Showy panicles of yellow flower spikes adorn the branch tips in spring. Deciduous.
There are very few rules in gardening, but perhaps the most important one is to work within your zone. Choosing plants that grow and thrive in your particular climate is the very first step toward having a beautiful garden . Learn More

Your climate might be too cold for this plant:


Full sun, Partial sun

Keep soil moist, but not soggy.


Due to the seasonal nature of plants, availability at your local garden center is not guaranteed. Give them a call before visiting.

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Botanical Pronunciationes-KU-lus ar-nold-ee-AY-nuh
LoreNot to be confused with the edible chestnuts from the species in the genus Castanea, the fruits of horse chestnuts (genus Aesculus) are ornamental and contain a toxin and should not be ingested.
Average Size at MaturityModerate growing; reaches 20 to 25 ft. tall and wide.
Bloom TimeSpring
Deciduous/ EvergreenDeciduous
Flower AttributeShowy Flowers
Flower ColorYellow
Foliage ColorGreen
Garden StyleContemporary, Rustic
Growth HabitRounded
Growth RateModerate
Light NeedsFull sun, Partial sun
Special FeatureFall Color, Waterwise
Water NeedsModerate
Watering NeedsKeep soil moist, but not soggy.
Companion PlantsEastern Redbud (Cercis canadensis); Chokeberry (Aronia); Elderberry (Sambucus); Serviceberry (Amelanchier); Joe Pye Weed (Eupatorium); Gayfeather (Liatris)

Provide deep, well-drained soil; adaptable to a variety of soil types. Water deeply, regularly during the first few growing seasons to establish an extensive root system. Once established, reduce frequency; tolerates moderate periodic drought. Fertilize in early spring. Prune to remove dead or damaged branches in winter.

This Plant's Growing Zones: 4-8

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant