World Plants Logo

search the world

Woody > Quercus > Quercus ellipsoidalis > Quercus ellipsoidalis

Quercus ellipsoidalis


Jack Oak, Northern Pin Oak, Hill's Oak




Origin:  Central and northeastern United States of America and Southwestern Canada.
Family
Fagaceae
Genus
Quercus
Species
ellipsoidalis
Category
Woody
Type
Tree (deciduous)
USDA Hardiness Zone
4 - 7
Canadian Hardiness Zone
3a - 7a
RHS Hardiness Zone
H7
Temperature (°C)
-30
Temperature (°F)
-5
Height
18 m
Spread
5 m
Photographs
Description and Growing Information
Flowering Period
General Description
This species has been placed on the IUCN Red List as least concern.
Landscape
In mass plantings, as an accent tree for its autumn interest or as a specimen.
Cultivation
Plant under full sun in moist but well-drained soil of any acidity or type.
Shape
Upright cylindrical to conical.
Growth
Slow
Pests
Scale, oak skeletonizer, leaf miner, galls, oak lace bugs, borers, caterpillars and nut weevils. May get chlorosis in poor soils.
Habitat
Sandy, lime-free soils at an altitude of 150-500 m.
Bark/Stem Description
Smooth, brown bark becoming rougher with maturity and dark brown twigs.
Flower/Leaf Bud Description
Ovoid, reddish-brown, 3-5 mm in length.
Leaf Description
Glossy green with a paler underside measuring 7.5 - 13 x 6 - 10 cm. 3 lobes with bristle-tips.
Fruit Description
Acorn, ellipsoid or rounded, brown, 1.2-2 cm.
Colour Description
Bright medium green leaves that turn a ruby red in autumn.
Texture Description
Medium.
Notable Specimens
St Albert Botanic Park, St Albert, Alberta, Canada.
Propagation
By seed.
goToTop
top