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Quercus palustris

Pin Oak

Pronunciation
KWER-kus pa-LUS-tris
Pronunciation Audio
Family
Genus
Nativity

Massachusetts to Delaware, west to Wisconsin and Arkansas

Growth Habit

Pyramidal, dense, heavily, branched with lower branches distinctly pendulous.

Hardiness
4
Culture

Rich, moist, acid, well-drained soil in full sun; tolerates urban growing conditions, wet soils. Iron chlorosis is a severe problem

Facultative Status
Facultative Wetland
Landscape Use

Very popular, and adaptable oak for the landscape, fibrous root system is easily transplanted. Mature trees are truly amazing to look upon with a massive trunk reaching over 80 feet. Young trees are distinctly pyramidal, usually with a central leader; the lower branches pendulous, the middle horizontal, and the upper upright. In old age, the lower branches drop off resulting in a tree with upright character and upward reaching upper branches.

Foliage

Glossy dark green in summer. Alternate, simple, 3 to 6 inch long, 5-7 lobes, with u- shaped sinuses. Leaves persist in winter. Fall color golden-yellow to

Buds

Buds are slender, pin-like twigs and spurs.

Bark

Gray to chestnut brown

Flower

Insigifcant monoecious yellowish-green flowers in spearate male and female catkins appear in spring as the leaves emerge.

Fruit

Nut (acorn), .5 inch long, involucre(cup) covering only a small part of the nut. Acorn matures in two years.

Propagation

Take cuttings when the first flush hardens, 10,000 ppm KIBA, 2 perlite:1 peat, mist. Rooting should occur 4 to 8 weeks later. Seed; cultivars are grafted.

Pests
Galls.
Cultivars

'Crown Rite' - Lower branches do not weep.

'Sovereign' - Lower branches do not weep.

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