Bur oaks are known for their corky branches and open growth habit. Tolerant of alkaline soils, bur oaks will grow to about 80 feet.
Hardiness Zones: 3-8 Habit: deciduous Growth rate: moderate Ideal planting location: full sun; moist, well-drained soil; high drought tolerance. Form: Rounded shape; acorn fruit. Height: 70-90 feet Width: 60-80 feet Leaf: 4-8 inches; simple green leaves; yellow to orange in fall.