Cork Oak Quercus suber

Detailed Listing For
Botanical Name:

Quercus suber

Family:

Fagaceae

Genus:

Quercus

Species:

suber

Common Name:

Cork Oak

Height:
40-60 feet
Minimum Hardiness Zone:
8
Recalcitrant seeds need refrigeration. Since shipping times are out of our control, we are not liable for seed condition upon arrival.

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  • Quercus suber

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Growing Info, follow in order:
Scarification: Soak in water, let stand in water for 24 hours.
Stratification: cold stratify for 60 days , or until radicle emergence.
Germination: sow 1-2" deep, tamp the soil, mulch the seed bed.
Other: fall sowing in mulched beds is prefered to artificial stratification.
In a Nutshell:
* Quercus suber, commonly called the cork oak, is a medium-sized, evergreen oak tree in the section Quercus sect. Cerris. It is the primary source of cork for wine bottle stoppers and other uses, such as cork flooring. It is native to southwest Europe and northwest Africa.
* Natural stands of cork oak can support diverse ecosystems.
* The tree forms a thick, rugged bark containing high levels of suberin. Over time the cork cambium layer of bark can develop considerable thickness and can be harvested every 9 to 12 years to produce cork.
* The harvesting of cork does not harm the tree, in fact, no trees are cut down during the harvesting process. Only the bark is extracted, and a new layer of cork regrows, making it a renewable resource. The tree is cultivated in Spain, Portugal, Algeria, Morocco, France, Italy and Tunisia.
* Cork harvesting is done entirely without machinery, being dependent solely on human labor. Usually five people are required to harvest the tree's bark, using a small axe. The process requires training due to the skill required to harvest bark without harming the tree. The European cork industry produces 300,000 tonnes of cork a year, with a value of €1.5 billion and employing 30,000 people. Wine corks represent 15% of cork usage by weight but 66% of revenues. more...
Usda description:
More info on http://plants.usda.gov