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| synonyms: Northern Red Oak, Quercus borealis forma rubra, Red Oak |
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| tree/shrub type: Broad leaved trees and shrubs |
| foliage: Deciduous |
| size: Tall forest trees (above 10m) |
| leaf type: Simple leaves |
| types of fruit: Trees and shrubs with nuts/acorns |
| flowering period: Spring |
| leaf colour: Leaves green, Trees and shrubs with good autumn colour |
| growing conditions: Frost tolerant plants USDA zone 7 to -10°F or -22°C |
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Quercus rubra L., syn. Quercus borealis Michx. forma rubra Red Oak or Northern Red Oak
Deciduous, native to the eastern half of N. America from central Florida and Texas to northern Canada. This is the best growing oak introduced from N. America to Europe; young trees may grow at the rate of 2.5m (8ft) per year. The wood, though hard, is not durable and has been used mainly for fire-wood and the bark, rich in tannin, is used in tanning leather. Height to 18-25m (60-80ft). Flowers appear in May, the red females can be seen in the axils of the new leaves. Acorns 1.8cm (¾in) long, take two years to mature and fall in October. Leaves are 10-22.5cm (4-9in) long are a lovely bright yellow for the first three weeks; the autumn colour is a deep red to brown. Z3. |
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