Species cork oak

cork oak

Quercus suber

The cork oak (Quercus suber) is native to the Mediterranean region and western Europe. It is a large evergreen oak tree, with thick, corky bark and large leaves. It is both an excellent source of timber and of cork, which is harvested from its bark every 9-12 years. The tree is long-lived, with some specimens thought to be over 500 years old. The cork oak is highly valued for its wood, which is strong and durable, and used for furniture, flooring, and construction. It is also a valuable habitat for wildlife, offering shelter and food to many species.

Cycle:

Perennial

Watering:

Minimum

Propagation:

Seed Propagation,Air Layering Propagation,Grafting Propagation,Cutting,Budding

Hardiness Zone:

8 - 10

Flowers:

Yellow-green Flowers In Spring

Sun:

Full sun

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Thorny:

Yes

Care Level:

Medium

watering

When it comes to watering, cork oak (Quercus suber) trees typically need less water than other tree species. With that said, they should still be watered regularly when they’re young and actively growing. They should generally be watered deeply once or twice a week in the summertime, and about once a month in other seasons. When it comes to how much water, it should typically be enough to soak the root ball and extend outward for about the length of the tree’s canopy. If rainfall is not plentiful enough for the tree in any given season, then supplemental irrigation will be needed to ensure adequate moisture.

sunlight

Cork oak trees (Quercus suber) require full sun exposure to grow and thrive. They should receive 6 to 8 hours of direct sunlight each day, and prefer as much light as possible. In the summer, cork oaks should have at least 8 hours of full sun a day, while in winter, 5 to 6 hours should be sufficient. Cork oaks can still survive and live in partial shade, but they do not produce as much cork if they do not get enough sun.

pruning

Cork oak (Quercus suber) should be pruned at least once every 2 years during its early life. Pruning should begin as soon as the tree is planted and gradually increase in frequency and intensity as it matures. The amount of pruning should be carefully considered and should be only as much as is necessary to maintain a healthy, attractive tree. Yearly pruning is usually recommended in order to carefully manage the growth of the tree and to remove dead, damaged, or broken branches. Light pruning should be done in the spring and dead wood can be removed at any time of the year. Heavy pruning should be done in the winter, when the tree is dormant. It is best to avoid pruning in the summer months, as it can cause the new shoots to grow too quickly and result in weak, floppy growth.

Season

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

Cork oak typically starts flowering in April.

Hardiness Map