Trembling Aspen
Populus tremuloides
mitos(Cree)
The most widely distributed tree in North America and the backbone of Alberta's Parkland. Smooth pale-green bark turns chalky white with age; round leaves flutter on flattened petioles — the classic 'trembling.' Aspen stands are often a single clonal organism connected by roots; one Colorado clone (Pando) is considered among the world's largest living things. Gold fall colour is unforgettable. Vigorous root suckers can be a problem near gardens.
Quick Facts
Distribution
Province-wide, Zone 1
Light
Full sun
Bloom Time
Mar–May (catkins)
Soil
Adaptable; tolerates poor soils, clay, sand
Water
Moderate; drought-tolerant once established
Growing & Cultivation
Propagation
Almost always from root suckers (sever a 30–45 cm section of shallow root with dormant buds in spring). Seed is rarely viable. Hardwood cuttings are difficult.
