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Red Horsechestnut

Aesculus x carnea

Leaves: Deciduous. Leaves are divided in 5 leaflets, sometimes 7, spreading out like the shape of a hand from one petiole (leaf stem). Leaf edges have serrations on serrations and have an undulating or wavy edge. Leaflets are widest towards their points and 3 to 6 inches long. Dark green and lustrous color. Fall color is insignificant, sometimes yellow-brownish.

Bark/Twigs: Bark is dark gray and smooth when young. Gray-brown and very scaly with long plates when older.

Flowers/Fruit: Very showy red to dark pink flowers grow in 6 to 8 inches tall and 3 to 4 inches wide panicles. Flowers sometimes have a little yellow inside. Blooms in late spring (May). Large, 1½ inch diameter, brown, shiny, inedible nuts grow in fruit capsules with a somewhat prickly husk.

Mature size and shape: Medium large. 30 to 40 feet high by approximately the same width. May stay smaller in Utah. Rounded shape.

General information/special features: Plant in full sun to partial shade. Moist soil is preferred. Dislikes overly dry soil.

Landscape use and maintenance: Beautiful ornamental shade tree. Fits well in residential yards. Average growing rate. Average to high maintenance with flowers.

USDA Hardiness Zone: 5 to 8

Family/Origin: Hippocastanaceae – Buckeye. A cross between A. hippocastanum and A. pavia, probably from Germany.

Campus Use: Somewhat common. Can be found in President's Circle and north of HPER North (Bld 92). The tree on the south of President's Circle is on the Utah Big Tree Registry.

Last Updated: 6/3/22