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Quercus glauca (Ring-cupped Oak seed) Sheffield`s Seed Co., Inc.
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Growing Info

Scarification
Scarification: Soak in water, let stand in water for 24 hours
Stratification
Stratification: cold stratify for 60 days , or until radicle emergence
Germination
Germination: sow 1" deep, tamp the soil, mulch the seed bed| sow seed 3/4" deep, tamp the soil, mulch the seed bed

Other: fall sowing in mulched beds is preferred to artificial stratification 

Native to: China, Japan, Korea, Korea (South)
Native
Introduced

Quercus glauca

Japanese Blue Oak, Ring-cup Oak, Ring-cupped Oak

Recalcitrant seeds require refrigeration and are sensitive during shipping. As transit time and carrier handling are beyond our control, seed condition upon arrival may vary.
  • Quercus glauca

Please select the quantity desired, and we will advise availability and price as soon as possible.

Details

Min. hardiness zone:
7

No Export to These Countries

New Zealand

Growing Info

Scarification
Scarification: Soak in water, let stand in water for 24 hours
Stratification
Stratification: cold stratify for 60 days , or until radicle emergence
Germination
Germination: sow 1" deep, tamp the soil, mulch the seed bed| sow seed 3/4" deep, tamp the soil, mulch the seed bed

Other: fall sowing in mulched beds is preferred to artificial stratification 

Native to: China, Japan, Korea, Korea (South)
Native
Introduced
Discover the enchanting Quercus glauca, commonly known as Ring-cupped Oak. This broadleaf evergreen is a striking addition to any landscape, native to the serene forests of Japan, China, Korea, and the Himalayas. Hardy in USDA Zones 7-9, Ring-cupped Oak thrives in rich, well-drained soils with medium moisture levels and full sun exposure, yet it gracefully adapts to a variety of soil types, including clay.

Standing at a height of 20-30 feet with a spread of 10-15 feet, this oak forms a unique upright-oval to rounded crown, perfect as a shade or street tree. Its glossy, dark green leaves with toothed apices unfurl with a delicate bronze or purplish-green hue, adding a dynamic seasonal interest. As the seasons change, the leaves may display a charming yellow-green tint in winter. In spring, witness the subtle emergence of yellowish-green catkins, followed by the development of distinctive acorns with ringed cups.

Low maintenance with good pest resistance, Ring-cupped Oak stands resilient against many common diseases and pests. Whether utilized as a singular shade tree or a tall, bushy shrub, its ornamental charm and adaptability make it a cherished choice in gardens and landscapes. For a touch of East Asian elegance, consider Quercus glauca—the epitome of serene beauty and hardy functionality.

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(315) 497-1058
269 NY-34 Locke NY 13092
seed@sheffields.com

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