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Weeping Willow
Salix babylonica
Weeping Willow is grown for its foliage rather than flowers, giving the garden structure and color all season long.
This entry comes from our curated library and has not yet been independently checked against outside sources. Curated is not unreliable: a standing audit keeps every entry internally consistent, and the source-by-source check is working through the whole library in the open.
Growing Weeping Willow
Plant it in full sun. It prefers high water. It is hardy in USDA zones 4–9. Expect it to reach about 39 ft tall and 39 ft wide at maturity, in roughly 15 years.
When to plant Weeping Willow
Plant Weeping Willow in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. For the middle of its hardy zones 4 to 9 range, spring means March to May and fall means August or September.
Month-by-month timing for your zone is on the planting calendar: for the middle of its range, start with zone 6 in March.
Good to know about Weeping Willow
Curated from university extensions, botanic gardens and other primary sources, with the source named on every note.
Worth knowing
Willow bark contains salicin, which the body turns into salicylic acid, the aspirin precursor. That anti-inflammatory chemistry is why willow bark has such a long medicinal history. per PubMed Central
Sources split on cold-hardiness
Sources split hard: NC State lists zones 6a to 8b, Florida IFAS lists 2 through 9A. The true species is frost-sensitive, so in cold regions plant a hardy hybrid. per NC State and Florida IFAS
Aggressive, pipe-seeking roots
Shallow roots spread about three times the trunk-to-canopy distance, lift sidewalks, and invade water and sewer pipes. Never plant near a house, drive, or utilities. per NC State and Florida IFAS
Weak, storm-prone wood
Fast growth makes weak, brittle wood that cracks at the crotch or in the limb. It sheds and splits under wind, snow, and ice. Prune young for structure. per NC State and Florida IFAS
Willow blight can kill
Willow blight (scab plus black canker) is the headline disease: it defoliates the tree, kills twigs, and can be fatal. The fungi overwinter in wood, so control is hard. per Illinois and Cornell
Site it by water
Its love of wet ground turns liabilities into assets: plant it beside a pond, in a low wet spot, or a rain garden, not on a tidy lawn. per NC State and Florida IFAS
What pairs well with Weeping Willow
Good companions share its growing conditions and add something it lacks: an earlier or later bloom, a lower carpet in front, or structure through winter.
Joe Pye Weed
Shares full sun and high water; both are strong pollinator plants; its seed heads stand through winter, for structure and the birds; low at 5.9 ft, to carpet the ground beneath it.
Perennial Sunflower
Shares full sun and moderate to high water; both are strong pollinator plants; its seed heads stand through winter, for structure and the birds; low at 4.9 ft, to carpet the ground beneath it.
Sneezeweed
Shares full sun and moderate to high water; both are strong pollinator plants; its seed heads stand through winter, for structure and the birds.
Canna Lily
Shares full sun and high water; both offer pollinator forage; low at 4.9 ft, to carpet the ground beneath it.
Bigleaf Hydrangea
Takes full sun to part sun and high water; both offer pollinator forage; low at 4.9 ft, to carpet the ground beneath it.
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