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.
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Good to grow!5


Full sun, Partial sun

Water regularly - weekly; less once established, more in extreme heat.


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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
Landscape UseSpecimen, Wildlife Garden, Urban Garden
Light NeedsFull sun, Partial sun
Soil NeedsTree & Shrub Food
Special FeatureExtreme Cold Hardiness, Fall Color, Fruit Poisonous, Waterwise, Tolerates Urban Pollution
Water NeedsModerate
Watering NeedsWater regularly - weekly; less once established, more in extreme heat.
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

Your USDA Cold Hardiness Zone: 5

Good to grow!