Quercus marilandica
Blackjack Oak
Please register or login to build your personal plant list.Black-jack Oak is a small to medium, deciduous tree of the red oak group. It is monoecious; male catkins and female spikes bloom separately on the...
Description:
Black-jack Oak is a small to medium, deciduous tree of the red oak group. It is monoecious; male catkins and female spikes bloom separately on the same tree in May. Its dark green leaves are leathery with 3-5 bristle-tipped lobes. Foliage turns brown in fall. Black-jack Oak grows in sandy, infertile soil where it is hard for other plants to grow. The acorns provide food for birds and wildlife. Oaks are host to numerous beneficial insects, which in turn provide food for birds. Black-jack Oak provides nesting space, cover, and shelter for wildlife. Use it in natural areas or native plant gardens around your yard. This tree is worth saving if it is already growing in your yard.
Plant Details:
Plant Type: Tree
New Jersey Native: Yes
Bloom Times: Spring, Late Spring to Early Summer
Bloom Colors: Red, Green, White
Deer Resistance: None
Attracts Pollinators and Wildlife: Birds
Salt Tolerance: Medium
Hardiness Zone: 6a, 6b, 7a, 7b
Physiographic Region: Coastal Plain - CP
Grows in Special Ecoregions: Barrier Island/Coastal, Pinelands
Soil Characteristics
Soil Type: Loam, Organic, Sandy, Clay
Soil Moisture: Dry, Moist
Soil pH: Acidic, Slightly Acidic, Neutral
Light Needs of Plant
Optimal Light: Full Sun
Light Range: Full Sun
Water Needs of Plant
Soil Moisture: Dry, Moist
Drought Tolerance: High
Size and Growth Rate
Height: 30 - 40 ft
Spread: 30 - 40 ft
Growth Rate: Slow