Quercus rubra

Quercus rubra is a deciduous Tree growing to 25 m by 18 m at a fast rate.
It is hardy to zone 3. It is in flower from April to May, and the seeds ripen in October. The species is monoecious and is pollinated by Wind.
Suitable for: medium and heavy soils and can grow in heavy clay soil. Suitable pH: acid, neutral and basic soils. It can grow in semi-shade or no shade. It prefers dry or moist soil. The plant can tolerates strong winds but not maritime exposure.

Prefers a good deep fertile loam which can be on the stiff side. Lime tolerant. Young plants tolerate reasonable levels of side shade. Tolerates moderate exposure, surviving well but being somewhat stunted. Prefers a hotter summer than is usually experienced in Britain, but trees still grow well in Britain. A fairly fast-growing tree, it is cultivated for its timber in C. Europe. Trees normally require 20 - 25 years to reach flowering size, and may take another 20 years before heavy crops of seed are produced. Seed production is cyclic, heavy crops being produced every 2 - 5 years in the wild. The tree flowers on new growth produced in spring, the seed taking two summers to ripen. Trees are able to regenerate from root suckers if the top is killed by a forest fire. Intolerant of root disturbance, trees should be planted in their permanent positions whilst young. Hybridizes freely with other members of the genus. Plants in this genus are notably resistant to honey fungus.