Elderberry

Grow in medium to wet, well-drained soils in full sun to part shade. Tolerates a wide range of soils, but prefers moist, humusy ones. Spreads by root suckers to form colonies. Prune suckers as they appear unless naturalizing. A large number of late winter pruning options include (a) pruning out dead or weakened stems, (b) shortening one year stems or (c) cutting back to the ground to rejuvenate. Some horticulturists recommend a hard spring pruning for maintaining best foliage and habit