Quercus marilandica

Common name: Blackjack Oak

Native plant

A much more southern addition to our native oak pantheon and maybe one of the quirkiest. In Illinois it is restricted to the southern half on rocky and sandy soils. Being at the very northern end of its natural range the plants will not reach their full size but rather will be more of a "low" tree reaching maybe 25' and thickly branched. Though it is harsh site tolerant it will need to be on sandier soils to be successful, and we strongly recommend that you use it in screens and boarder plantings, not as a singular tree. Like most oaks it host hundreds of butterfly and moth caterpillars, as well as the birds that feed on them. Fall color tends to the red/purple and very shiny.    

Limited availability.


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Price Level: 
Woodies- Specialty Tree Tier 1
Sizing Options: 
1 Gallon
5 Gallon
10 Gallon
15 Gallon

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Plant Details

Plant type


Soil type

Dry, Dry Mesic, Mesic (Not too Wet Not too Dry)

Light exposure

Eastern Exposure / Morning Sun, Full Sun

Bloom period


Urban environment

Uncompacted Urban Soils, Harsh Exposure Tolerant


Prairie Grasslands, Sandy Soils, Savannas

Growth form

Single trunk, Low branched

Growth rate


Flower color

Yellowish Catkin

Fall color

Red Orange Yellow


Mature height
30 Feet
Mature width
30 Feet
Max height
42 Feet
Max width
46 Feet

Additional information

Butterfly host plant Drought Resistant Great for Screening/Border Plantings Loved by birds Pollinator hot spot

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