04-02-2021



Blackjack

Common names:
Blackjack Oak
Oak
Botanical names:
Quercus marilandicaAccepted
Quercus marilandica var. asheiSynonym
General Plant Information (Edit)
Plant Habit:Tree
Life cycle:Perennial
Sun Requirements:Full Sun
Water Preferences:
Soil pH Preferences:Very strongly acid (4.5 – 5.0)
Strongly acid (5.1 – 5.5)
Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Minimum cold hardiness:Zone 5b -26.1 °C (-15 °F) to -23.3 °C (-10 °F)
Maximum recommended zone:Zone 8b
:To 50 feet (15 m)
:35 to 50 feet
Leaves:Good fall color
Deciduous
Fruit:Other: Biennial
Fruiting Time:Late summer or early fall
Flowers:Inconspicuous
Flower Time:Spring
Underground structures:Taproot
Suitable Locations:Beach Front
Uses:Shade Tree
Will Naturalize
Dynamic Accumulator:K (Potassium)
Wildlife Attractant:Birds
Resistances:Drought tolerant
Salt tolerant
Pollinators:Wind
Miscellaneous:Tolerates poor soil
Monoecious
Conservation status:Least Concern (LC)

By RuuddeBlock

Importance of Blackjack Oak. The importance of plants lies in their great contribution to human life and the environment. The importance of Blackjack Oak is high as its benefits are more and so are Blackjack Oak Facts.Every gardener must look for the required information on this plant before planting it. Water oak is a medium to large tree with a tall straight trunk, a rounded, symmetrical crown, and ascending branches. Leaves are alternate, simple, 2–4 inches long, broadest near the tip, fan-shaped, tapering to a long, narrow base; margin varies, sometimes entire with a rounded tip, often slightly wavy, usually with 3 broad lobes at the tip.

Pictures

By wildflowers

By RuuddeBlock

By robertduval14

By wildflowers

By wildflowers
Uses For Blackjack Oak

Blackjack Oak Tree Pictures


By ILPARW

By RuuddeBlock

By wildflowers

By ILPARW
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 11, 2017 8:33 PM

Oftentimes, it is a smaller scrubby oak tree about 20 to 30 feet high, but it can be a more stately tree to 5o feet high. Its native range is from southern New Jersey and southeast Pennsylvania down to northern Florida to east Texas & Oklahoma & Kansas, all Missouri, southeast Iowa to west central Illinois to southern Indiana and Ohio, growing in acid, sandy or dry upland soils. It is slow growing of about 1/2 to 1 foot/year and lives about 300 or more years. Its acorns are about 3/4 inch long that mature every two years. It develops a taproot so it is difficult to transplant. I've only seen a number of trees in the pine barrens of southern New Jersey where they all looked smaller and scrubby, but there is one tall, stately specimen at Jenkins Arboretum in southeast PA. Some native plant nurseries sell some in large pots.

[ Reply to this comment | ]

Thread TitleLast ReplyReplies
Is this a red oak? by mozart007Nov 13, 2019 5:30 PM9
What kind of Tree does this leaf belong to? by IJsbrandtGANov 17, 2016 2:28 PM7
IDs and help please by ChantellDec 5, 2016 7:20 PM84
Oak tree in Texas #4 by wildflowersOct 3, 2015 7:08 AM23
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