Serviceberry 'Rainbow Pillar' is a columnar, deciduous tree known for its stunning white spring flowers and purplish black fruits. This variety of Serviceberry has a narrow, upright form, making it perfect for smaller spaces, fence and hedge rows or as a specimen tree. It thrives in moist, well-drained soils and full sun, offering four-season interest with its spring blooms, summer foliage, fall color, and winter structure. Resistant to rust and mildew. Full sun to part shade.