Populus tremula 'Erecta'
Native to the forests of Sweden, this slender tree is great for smaller spaces, screens and along drives. May be a good substitute for Lombardy as it is more resistant to cankers than other columnar poplars. Dark green leaves have a lighter silvery-green underside providing both visual interest and soothing sound in a breeze. Prefers a rich, well-drained, moist soil but will tolerate heavy soils if not too poorly drained.
Populus tremula 'Erecta'
Set top of rootball two inches above the ground level. Mix half garden soil and half planting mix. Mound soil to form water basin.