Not a Grass (Water Oak)
Quercus nigra · Deciduous Broadleaf Tree
Grass Family
Fagaceae (Oak family - Not a member of Poaceae)
Grass Category
Woody Perennial / Shade Tree
Variety / Cultivar
Native species (Wild type)
Hardiness Zones
USDA Zones 6-9; heat tolerant but susceptible to extreme cold breakage.
About This Grass
This is a medium-sized tree, not a grass. It features variable, spatulate leaves that are often lobed at the apex. The foliage is glossy green in summer, turning yellow or brown before dropping in late winter.
Blade Characteristics
Leaves are 2-4 inches long, alternate, simple, and highly variable in shape. Many leaves are broader at the tip (spatulate) with 3 shallow lobes resembling a turkey foot. Texture is leathery and smooth.
Root System
Deep taproot when young, developing a widespread lateral root system as it matures. High water-absorbing capacity.
Growing Information
Origin Region
Southeastern United States; adapted to humid subtropical climates
Growth Habit
Arborescent (Treeform); single or multi-trunked with a spreading canopy
Sunlight & Water Needs
Full sun to partial shade. Prefers moist, well-drained soils but is highly adaptable to wet, clay-heavy lowlands.
Mowing & Maintenance
Not applicable; requires pruning for structural integrity rather than mowing. High maintenance regarding leaf and acorn litter.
Special Characteristics
Fast-growing but short-lived for an oak. High wildlife value due to heavy acorn production. Not salt tolerant.
Ecological Information
Native to North America. Vital for lepidoptera larvae and provides mast (acorns) for squirrels, turkeys, and deer. Often a pioneer species in bottomland forests.