Pot grown from seed here at the Arundel Arboretum, very well rooted and hardened. 

Populus tremula, commonly known as the trembling aspen or quaking aspen, is a deciduous tree native to various regions across the Northern Hemisphere, including the United Kingdom. It belongs to the genus Populus and is renowned for its distinctive quivering leaves, which flutter in even the slightest breeze, giving rise to its evocative common names.

The trembling aspen typically reaches heights of 20 to 25 meters, although some specimens can grow taller under optimal conditions. Its slender trunk is often pale grey or white with black knots, and it tends to have a narrow crown with branches that ascend in a graceful, upward fashion.

One of the most striking features of the trembling aspen is its leaves. They are roughly triangular in shape with finely serrated edges, and they have a flat petiole that causes them to flutter and tremble in the wind. This unique characteristic helps to distinguish the tree from other species in its range.

In the spring, the trembling aspen produces catkins, which are long, drooping clusters of small flowers. These flowers are an important source of pollen for bees and other pollinators. Later in the season, the tree develops small, round fruits containing tiny seeds surrounded by cottony fluff, aiding in wind dispersal.

Trembling aspens typically thrive in moist, well-drained soils in locations such as riverbanks, wetlands, and mixed woodlands. They are relatively fast-growing and can colonize disturbed areas quickly, making them an important pioneer species in forest ecosystems.

In addition to their ecological significance, trembling aspens also hold cultural and historical importance. They feature prominently in folklore and mythology in various cultures, often symbolizing resilience, regeneration, and transformation.