Red Horsechestnut, Red Horse Chestnut, Bottlebrush Buckeye
Aesculus x carnea 'O'Neill's Red'

Family: Sapindaceae (sap-in-DAY-see-ee) (Info)
Genus: Aesculus (ES-kew-lus) (Info)
Species: x carnea
Cultivar: O'Neill's Red

Category:

Trees

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

over 40 ft. (12 m)

Spacing:

20-30 ft. (6-9 m)

30-40 ft. (9-12 m)

Hardiness:

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Pink

Bloom Time:

Late Spring/Early Summer

Foliage:

Deciduous

Provides winter interest

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

Seed Collecting:

Seed does not store well; sow as soon as possible

Regional

This plant has been said to grow in the following regions:

Carson City, Nevada

Lexington, Virginia

Madison, Wisconsin

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Jun 4, 2010, Katlian from Carson City, NV (Zone 6b) wrote:

There are two of these trees in my neighborhood. They are very attractive and bloom right after the lilacs are done. They seem to hold up to our high desert climate quite well without much maintenance.

Neutral

On Mar 16, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

Aesculus carnea 'O'Neill Red' RED-FLWD HORSECHESTNUT Dec (z4)
Striking 10-12"! "candles" of red decorate this handsome rounded 40-70' tree in e. sumr;its lush glossy green foliage (far more disease resistant than A.hippocastanum) makes an eye-catching picture during summer.S/Med