— Short, snippet-friendly answers to the most-asked questions about Willow Oak (Quercus phellos). For the full profile with citations, open the main page.
Willow Oak (Quercus phellos) is a deciduous tree native to the southeastern United States, including Alabama, Arkansas, Delaware, District of Columbia, Florida, Georgia, Illinois, Kentucky, and Louisiana. Willow Oak (Latin: Quercus phellos, family Fagaceae) is a medicinal plant catalogued in PlantSage.
Willow Oak is most often used to support immune support. Each claim is rated by evidence strength — see the full profile for citations.
Willow Oak is generally considered safe when used at traditional doses. Always consult a clinician before using any herbal preparation — especially during pregnancy, breastfeeding, while on medication, or for children.
Willow Oak is a member of the Fagaceae family native to ALA, ARK, DEL, WDC, FLA, and GEO. Willow Oak prefers full to partial sun and requires moist, medium to heavy (clay) soil with a pH between 4.5 and 6.5.
Willow Oak grows best in USDA zone 5-9, full sun, partial sun/shade light, and moist water. Detailed sowing, propagation, and care notes are on the full profile.
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