Bur Oak: Complete Guide to Toughest Tree in North America

Scientific Name: Quercus macrocarpa | Family: Fagaceae | Lifespan: 200–400 years | USDA Zones: 3–8 Key Takeaways: Bur oak is a massive, long-lived North American native tree that tolerates drought, cold, poor soils, and urban stress better than most shade…










