This is a low maintenance tree which prefers moist well drained soils. Grow in sunny spots. For tree health, do not remove base of dead leaves. Very deep root system makes it hard to transplant after it gets a foot tall. Older trees are more cold tolerant. Takes a lot of water to establish. Propagation: Seed. Fresh seeds require no pretreatment but germination will be better with stratification. Seeds require a moist, muddy seedbed.