Sawtooth Oak is a native tree to Japan, Korea, China, and The Himalayas. The Sawtooth Oak was introduced into European cultivation in 1862 by Englishman Richard Oldham. It is said that in Japan, silkworms were at one time fed on its leaves. The Sawtooth Oak is one of the heaviest producing acorn oaks for wildlife. Its abundant acorn production attracts deer and turkey to the extent that seed collection is often a challenge due to the competition from the wildlife. Acorns are produced earlier than all native oaks in North America – within 4 to 6 years of age. It has no serious disease or insect problems and has yellowish fall leaf color. During the summer, leaves remain lustrous and dark green. The bark of the tree is dull grey-brown, smooth at first, becoming vertically and deeply fissured in maturity. Planting instruction can be found at boydnursery.net/planting/.
|Diseases & Insects|| |
Flowers are monoecious, 3 to 4 inch long slender golden catkins separate male and female; appear in late March-early April with the emerging leaves; inconspicuous and not showy; acorns are oval, 1” long, with spiny, scaly cups that extend to approximately 2/3 the acorn length
|Hardiness Range|| |
zone 5a – 9b *need help finding your hardiness zone?
Leaves are dark lustrous green in summer; often a good clear yellow to golden brown fall color, developing late, often in November; leaves open a brilliant yellow to golden yellow in spring; leaves are alternate, simple, 4 to 8 inches long and 1 to 2 inches wide; leaves are acute, broad-cuneate or rounded at base, serrate with bristle-like teeth terminating the 12 to 16 parallel veins
40-60 feet tall at maturity with roughly equal spread