The weeping willow tree is known for its long, dangling, light-green branches. Often found near a body of water, weeping willows do best in moist soils and provide a fast-growing tree in open garden areas. Weeping willow trees require a lot of care during the summer if planted in a dry area. Properly planted and maintained, the weeping willow will grow to a height of 35 to 45 feet.
Plant the weeping willow in an area where the roots have plenty of room to grow, away from water lines and septic tanks. Root systems of the weeping willow are very aggressive and will damage underground piping.
Pull any weeds away from the weeping willow during its first year of growth and mulch around the tree to prevent further growth.
Water the tree regularly to keep the soil moist. Water down at least to 2 inches. Do not soak the soil as the tree is susceptible to root rot.
Prune the weeping willow in the fall after the leaves have fallen and the tree has gone dormant. Cut away any dead or damaged branches. Remove sucklings from the bottom of the tree. Trim old branches away below new buds to shape the tree.
Fertilize the tree in the spring. Add a 10-10-10 or 20-20-20 fertilizer to the soil around the tree to encourage growth. The tree only requires one fertilizer application per season.