This tree prefers full or partial sun and moist conditions. It tolerates various kinds of soil, including those containing loam, clay, gravel, and silt. A very acid soil (pH 2-4) is tolerated surprising well, while very alkaline soil (pH above 7) should be avoided. Seeds should be planted while they are still fresh in moist soil and require the presence of strong light to germinate. River Birch is more resistant to Agrilus anxius (Bronze Birch Borer) than most Betula spp. (Birch trees), which is a major insect pest of these trees. Range & Habitat