USA and South east Canada around the Great Lake Regions
15 - 25m x 20m
A single trunked conical to medium domed tree with many evenly spaced horizontal or pendulous branches, becoming broad domed with age.
Alternate, deeply and variably pinnatifid, with pointed lobes (each lobe ending in a short bristle) 100 - 150mm x 70 - 120mm, bright mid green, turning crimson / red in autumn, then turning brown. The brown leaves will stay on the tree till the new growth pushes them off in spring.
Inconspicuous among new growth in spring.
A globose acorn, 10 - 15mm high, dark brown with paler vertical stripes, the involucre (saucer) half covers the acorn, ripening in late summer and autumn.
Bark / Trunk:
Brownish / grey furrowed bark
Vigour / Longevity:
Slow to moderate, long lived
Sunny positions for the best autumn colour.
Frost hardy to - 10°C, tolerates periodically wet soils, snow tolerant, tolerates neglect
Soil / Drainage:
Prefers deep moist, well drained soils, prefers to be near permanent water, rivers, etc.
Early training to establish a single leader and to lift the lower branches, if access is needed under the crown. As this tree matures it is usually self shaping but can tolerate hard pruning.
Not drought tolerant, water in dry summers.
Apply a complete fertiliser in late winter for spring growth, till established.
Pests / Diseases:
Oak Blotch Leaf Miner (less affected by leaf miner than Q. robur), Chlorosis in alkaline soils, treat with Iron Chelates.
Autumn colour contrast tree, street tree, shade tree, avenue tree, golf course tree, (the hard bark is not damaged by the golf balls), river bank binder.
© Text reproduced here with the kind permission of Tony Wilson and Barck Books.