Family: Nyssaceae

Native to eastern Asia and eastern North America, this genus consists of five species of deciduous trees, grown both for their timber and for their brilliant autumn foliage.

Species

N. aquatica, cotton gum or tupelo gum, can grow to 30 m (100 ft) in its native United States, but is mostly around 15-20 m (50-65 ft) cultivated. It is essentially a swamp grower and tolerates floods. The small flowers are very attractive to bees.

N. sylvatica, tupelo or sour gum, is also a native of the United States and can grow to 30 m (100 ft) in its habitat. Generally seen around 15-20 m (50-65 ft) in cultivation, it has a distinctive, horizontal branching habit. The glossy foliage turns brilliant scarlet or crimson in autumn.

Cultivation

Nyssas prefer acid to neutral, moisture-retentive yet well-drained soil, and a sheltered position with full sun or partial shade. They do not like transplanting, so plant small specimens and then leave well alone. Propagate from seed sown outdoors in autumn, or from semi-ripe cuttings in summer.

Climate

Zone 3.