Mimosa Tree (Albizia julibrissin): Fast-Growing, Ferny Foliage & Pink Powderpuffs

The mimosa (silk tree) is a rapid-growing deciduous tree to 20–40 ft with feathery, fern-like leaves that fold at night ("sleeping tree") and fragrant, pink powderpuff flowers (April–July) made of showy stamens. Flat seed pods persist into winter.

Adaptability

• Zones 6–10; survives -10°F.
• Full sun to part shade.
• Any soil (clay, loam, sand); prefers acidic.
• Drought-tolerant once established.

Care

• Plant spring in well-drained soil; amend with peat/compost for acidity.
• Water regularly but don’t saturate.
• Clean fallen flowers/pods.
• Prune fall; remove webworm-infested branches promptly.

Reproduction

Seeds (near parent or dispersed by water/wildlife) and vegetative regrowth from cut stumps.

Mimosa adds quick shade and exotic bloom—but can self-sow aggressively.