Plant library · Shade Trees
Salix babylonica
Weeping willow is a large, deciduous shade tree with a strongly cascading outline and a mature reach of about 40 feet tall and 40 feet wide. Its arching branches give it the scale to anchor a broad lawn, pond margin, or other open, moisture-retentive part of the landscape. Reserve it for sites where the canopy can be appreciated from a distance rather than squeezed into a mixed border.
Use this tree as a single focal point near a pond edge or in a broad low area that holds moisture, with open ground around the entire canopy. Keep the planting area away from foundations, water and sewer lines, and other buried services; its roots can be invasive around pipes. Do not place it where drooping limbs will overhang a regularly used path, patio, drive, or small planting bed, since the canopy needs room to sweep outward and down.[1][2]
Plant weeping willows 40 feet apart, center to center, so neighboring canopies have room to develop without immediate crowding. Treat that distance as a minimum planning module, not as leftover lawn to fill with permanent woody plants. Keep a generous clear zone around the trunk for access, fallen twigs, and the low curtain of mature branches; gardening directly beneath the tree becomes difficult as shallow roots and shade expand.[2]
Give it full sun and a site with consistently available moisture. It suits a pond margin, rain garden edge, or other deep soil that does not dry quickly in summer. Avoid making it the centerpiece of a dry, irrigated border: high water needs and a large root zone make that arrangement harder to manage as the tree matures.
Early-spring catkins arrive as the new leaves emerge, followed by the full leafy canopy that creates its broad summer presence. The tree is deciduous, so its spatial effect changes markedly through the year: open branching in winter, then a dense, low-hanging screen in the growing season. Allow for leaf, twig, and branch litter in areas intended for easy cleanup.[1][2]
This is a high-impact tree for a large site, not a compact residential corner. Its fast growth is paired with relatively weak, breakage-prone wood, especially in snow, ice, or wind. Leave room to inspect and prune heavy branches, and avoid siting it beside roofs, parked vehicles, play areas, or structures that could be affected by falling limbs or recurring debris.[1][2]
Editorial content updated 2026-07-20.