Ulmus americana

Bloom Color: Green. Main Bloom Time: Early spring, Late spring, Mid spring. Form: Vase.

Ulmus americana is a deciduous Tree growing to 25 m by 25 m at a medium rate.
It is hardy to zone 3 and is not frost tender. It is in flower in May, and the seeds ripen in June. The species is hermaphrodite and is pollinated by Wind.
Suitable for: light , medium and heavy soils and prefers well-drained soil. Suitable pH: acid, neutral and basic soils. It can grow in semi-shade or no shade. It prefers moist soil.

Landscape Uses:Firewood, Aggressive surface roots possible, Specimen, Street tree. Prefers a fertile soil in full sun, but it can be grown in any soil of at least moderate quality so long as it is well drained. Trees are moderately fast-growing and live for at least 300 years in the wild, but they do not thrive in Britain. This species is particularly susceptible to 'Dutch elm disease', a disease that has destroyed the greater part of all the elm trees growing in Britain. The disease is spread by means of beetles. Mature trees killed back by the disease will often regrow from suckers, but these too will succumb when they get larger. There is no effective cure for the problem, but most E. Asian, though not Himalayan, species are resistant to the disease so the potential exists to use these resistant species to develop new resistant hybrids with the native species. The various species of this genus hybridize freely with each other and pollen is easily saved, so even those species with different flowering times can be hybridized. Special Features:North American native, Inconspicuous flowers or blooms.