Species Garry oak

Garry oak

Quercus garryana

Garry oak is a species of oak native to western North America. While it's typically found in dry and coastal climates, it's very hardy and can adapt to different soil types. Growing as tall as 25 meters, its distinctive bark is an interesting color of purple-gray. Its leaves range in color from green to a deep blue-green shade. Garry oak produces acorns that are enjoyed by a variety of wildlife, particularly birds. This strong, drought-tolerant tree was also used by Native American tribes for its hardwood and acorns. Its population is dwindling due to habitat loss, so environmentalists are working to protect and restore Garry oak ecosystems.

Cycle:

Perennial

Watering:

Minimum

Propagation:

Seed Propagation

Hardiness Zone:

7

Flowers:

Not showy, Yellow, Green-yellow Flowers In Spring

Sun:

Full sun

Soil:

Rocky , gravelly , dry

Fruits:

brown,tan Fruits In Autumn Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Thorny:

Yes

Care Level:

High

watering

Garry oak trees should be watered deeply twice a month during dry periods. To water your tree, allow a stream of water to trickle slowly at the base of the tree for about 15 minutes to ensure the water seeps down deep into the soil. If you have the space and ability, a soaker hose placed at the base perimeter of the tree can be a very effective way to deliver water. During periods of drought, it is beneficial to add additional watering, up to 4 times per month if needed.

sunlight

Garry oak (Quercus garryana) prefers full sun exposure. During the summer months, the plant should receive approximately 6 to 8 hours of direct sunlight daily. During the winter months, when the sun is not as strong, it can benefit from 4 to 6 hours of sunlight each day. To ensure optimal sunlight exposure, the Garry oak should be planted in an area of the yard that receives full sun all day long.

pruning

Pruning of Garry oaks should be done at 2 times during the year: in late winter to early spring before new growth begins, and again in fall after new growth has stopped. In late winter or early spring before new growth begins, thin out dead, diseased, or crossing branches to promote strong, healthy growth. Lightly reduce the ends of the major branches to help maintain their strength and sustainability. Thin out competing branches and reduce the height of larger branches if necessary. In the fall after new growth has stopped, remove the growing tips of young shoots. This promotes a more compact, dense shape. Make all pruning cuts above a node or lateral branch. Cut branches close enough to reach a node, just leave a tiny stub. Remove any dead or diseased branches throughout the year as they are noticed.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Harvest Fruit

The harvesting season for Quercus garryana typically begins in late summer, usually in August or September.

Starts Flowering

Garry oak typically starts flowering in April.

Harvest Fruit

The harvesting season for Quercus garryana typically begins in late summer, usually in August or September.

Hardiness Map