Populus tremula 'Erecta'
Description: A very tall and vigorous, fastigiate form of Aspen. The small, pointed, heart-shaped foliage is mid-green throughout the spring and summer, turning vibrant shades of orange, yellow and red in the autumn. Male catkins are borne in spring.
History: Thought to originate in Sweden, around 1847. Received the Royal Horticultural Society's Award of Garden Merit in 1993.
Populus Growing Tips: Grow in moist but well-drained, humus-rich, fertile soils but avoid planting in vicinity of buildings due to vigorous root system. Annual hard pruning recommended.
Height and Spread (after 10 years): 8m x 1m