
Chalkbark Maple (Acer leucoderme), formerly A. saccharum ssp. leucoderme), is classified as a subspecies of the Sugar Maple (USDA zones 5b – 8). Also called whitebark maple and chalk maple, it grows in full sun to light shade, 20-30 feet height and 15-25 feet wide. It is classified as a large shrub or small tree, with yellow flowers and small samara winged fruits. Many people take notice of its smooth, chalky-white bark (its Latin name, leucoderme, means “white skin”). Bark becomes ridged and blackish at the base as the tree ages.
Chalkbark maple is found growing in limited areas in the southeastern U.S., from South Carolina to Florida. It propagates easily from seed. Young seedlings grow off fast and slow down as plants age. As an understory tree, find it in moist, rocky soils on riverbanks, ravines, woods, and cliffs. It is grown as a shade tree and is highly shade and drought tolerant.
Chalkbark maple is more heat and drought tolerant than the northern Sugar Maple (Acer saccharum). It prefers drier upland sites and tolerates wide ranges of soil pH. Its inconspicuous yellowish green flowers in spring are visited by early spring pollinators. Samaras are reddish to tan, 1 – 1 ¼ inch long that start ripening in late summer.

Chalkbark maple is a good choice for planting on patios and decks. It is drought tolerant and can grow in dry, even alkaline, soil. Chalk maple has striking white bark, and in the fall its leaves range in color from yellow orange to dark red. Surprisingly underused, this small maple is well suited for residential sites.
This small maple is underutilized in U.S. gardens. A seedling tree develops into an attractive understory tree with chalky white-gray bark color as it ages. Trees are often multi-stemmed, usually 2-3 trunks. The tree is becoming more planted in the Midwest in areas with alkaline soil pH. Avoid planting on poorly drained sites.

Chalkbark maple offers some winter interest. It is drought and shade tolerant. It has no serious disease or insect problems. This native maple is a rare find in the U.S. garden centers. Look for it at online e-commerce nurseries.



























