- Weeping willows feature interlacing root systems. These tangled masses often reach to the soil surface and interfere with mowing or landscaping. Plan ahead for the mature size of the root system. Allow 50 feet in each direction to protect home plumbing and septic systems since the willow seeks out the most convenient water source.
- Placement of the weeping willow requires careful planning to create optimal growing conditions. Weeping willows spread extensive root systems. Arborists with the Cornell University Department of Horticulture recommend the placement of individual trees at least 50 feet apart to allow adequate room for root growth.
- Weeping willows grow up to 36 inches per year. The rapid above-ground growth corresponds to similarly vigorous growth beneath the soil surface. Roots may extend far beyond the typical 40 to 70 feet marking the dripline or outer canopy of foliage.
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