Garden Scheme

Plant library  ·  Ornamental & Flowering Trees

Mimosa Tree

Albizia julibrissin

Mimosa Tree is a fast-growing ornamental tree with pink, powder-puff flowers and a light, tropical-looking canopy. Reaching about 30 feet tall and 35 feet wide, it needs a generous open position rather than a tight foundation bed. Its broad crown can cast dappled shade over a seating area or lawn, while its early- to midsummer bloom adds a distinct seasonal focal point. It is suited to USDA Zones 6 through 9.

  • Pollinator friendly
  • Deer resistant
Sunlight Full Sun
Water Low
USDA zones 6–9
Spacing 30 ft
Mature size 30 ft tall, 35 ft wide
Bloom Early to mid summer

Placement and use

Use Mimosa Tree as a freestanding lawn or patio accent where its low, spreading form has room to read as one canopy. Keep it well back from roofs, parked vehicles, play areas, and heavily used paths, leaving clear access around the trunk for seasonal cleanup. Avoid squeezing it between buildings or beneath utility lines. Its weak-wooded branches and dropped flowers, leaves, and pods make an open, easy-to-maintain setting more workable than a narrow courtyard or entry planting.[1][2]

Spacing and mature footprint

Space Mimosa Trees 30 feet apart, center to center. Each tree can develop a canopy about 35 feet across, so allow for branches to approach or overlap at that interval and keep nearby trees, tall shrubs, and structures outside the intended crown area. Reserve a broad planting zone rather than treating the trunk as the edge of its footprint. A path set beyond the mature drip line gives more comfortable passage and makes fallen debris easier to manage.

Three plants set 30 ft apart, center to center; shaded circles show the 35 ft mature spread.

Sun, water, and soil

Place this tree in full sun, with open overhead exposure that supports its flowering display and broad canopy. Once established, its low water needs make it better suited to a planting area that is not routinely irrigated like a thirsty perennial border. Keep a clear mulch ring or planting bed around the base instead of packing the trunk into dense groundcover, so watering and cleanup remain straightforward.

Seasonal notes

Pink flowers arrive from early to midsummer, when the canopy is fullest and most useful for light shade. Flat seed pods follow and may remain into winter, extending the tree’s visible presence but also adding to cleanup planning. Site it where seasonal leaf, flower, and pod drop will not collect on roofs, gutters, paving joints, or high-traffic outdoor furniture.[1][2]

Planning caveats

Mimosa Tree is invasive in parts of the southern United States and can seed beyond its intended planting area. Check local guidance before adding it, especially near natural areas, streams, woodland edges, or unmanaged land. It can also be short-lived and susceptible to wilt and insect problems, so avoid making it the sole shade tree or the structural centerpiece of a long-term garden plan. Give it a location where removal or replacement would be manageable.[1][2]

Growing facts

Botanical name
Albizia julibrissin
Type
Fruit Tree
Category
Ornamental & Flowering Trees
Lifecycle
perennial
USDA hardiness zones
6–9
Sunlight
Full Sun
Water
Low
Plant spacing
30 ft
Mature size
30 ft tall, 35 ft wide
Bloom season
Early to mid summer
Pollinator friendly
Yes
Deer resistant
Yes
Native to North America
No

References

  1. Mimosa - Albizia julibrissin — North Carolina Extension Gardener Plant Toolbox
  2. Albizia julibrissin: Mimosa — UF/IFAS Extension

Editorial content updated 2026-07-20.