Water Oak
Quercus nigra
Last reviewed: June 2026
Water Oak (Quercus nigra) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org, last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
medium
Size
360"–600" H × 240"–480" W
Bloom
Mar, Apr
Native to
AL, AR, DE, FL and 14 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Water oak is a medium to large deciduous tree native to the southeastern United States. It develops a rounded crown and produces small spring flowers followed by acorns. This oak species prefers moist soils and provides excellent shade coverage.
In an HOA neighborhood
Water Oak is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, mid zone, street edge.
- Large mature size requires adequate space
- Acorn drop may require seasonal cleanup
Wildlife value
Host plant for Edward's Hairstreak, Banded Hairstreak.
Supports bees and beetles during spring flowering, and the acorns feed numerous wildlife species including squirrels, deer, and birds. Oak trees are among the most valuable native trees for supporting caterpillars and other insects.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Water Oak fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.