
Briotii Red Horsechestnut
Aesculus carnea 'Briotii'
Essentials
At a Glance
Plant Type
Tree
Height
420 inches
Width
420 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8
Water
Medium
Humidity
Average
Lifespan
50+ years
Native To
Hybrid Origin
Toxicity
All parts are poisonous if ingested
The Story
Plant Bio
Aesculus x carnea is a medium-sized, rounded deciduous tree, a hybrid between the European horsechestnut and the American red buckeye. It is valued for its large, palmate leaves and showy flower panicles. 'Briotii' is a superior cultivar celebrated for its large, deep rose-red flowers held in upright panicles up to 10 inches long. It is also more resistant to leaf scorch and blotch than its parent species.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Choose a location with full sun to part shade and well-drained soil.
- Dig a planting hole twice as wide as the root ball.
- Position the tree so the top of the root ball is level with the soil.
- Backfill the hole with the original soil, gently firming it down.
- Water thoroughly after planting to settle the soil.
- Apply a layer of mulch, keeping it away from the trunk.
Pro Tip
Provide good air circulation to minimize fungal diseases like leaf blotch, to which horsechestnuts can be susceptible.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells, especially when young.
- Provide ample space for its mature size.
- Clean up fallen leaves in autumn to reduce disease carryover.
- Monitor for pests like scale and Japanese beetles.
Don't
- Do not plant in overly dry or compacted soil.
- Avoid heavy pruning, which can spoil its natural shape.
- Don't allow mulch to touch the trunk, as it can cause rot.
- Avoid planting where falling nuts will be a nuisance on pavement.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Briotii Red Horsechestnut questions
What zones can Briotii Red Horsechestnut grow in?
Briotii Red Horsechestnut is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Briotii Red Horsechestnut deer resistant?
Yes — Briotii Red Horsechestnut is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Briotii Red Horsechestnut bloom?
Briotii Red Horsechestnut typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Briotii Red Horsechestnut need full sun?
Briotii Red Horsechestnut does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Aesculus to compare

Fort McNair Red Horse Chestnut
Aesculus carnea 'Fort Mcnair'

Red Buckeye
Aesculus pavia

Early Glow Ohio Buckeye
Aesculus glabra 'Early Glow'

Bottlebrush Buckeye
Aesculus parviflora

Yellow Buckeye
Aesculus flava

Autumn Splendor Buckeye
Aesculus arnoldiana 'Autumn Splendor'
