Albizia julibrissin
Albizia julibrissin Durazz.
Albizia julibrissin is a graceful, fast-growing deciduous tree native to Asia, celebrated for its clouds of fluffy, fragrant, powder-puff pink flowers produced through the heat of summer. It symbolizes happiness, harmonious marriage, collective joy, and the heart's gentle openness.
Fabaceae (Legume / Pea family)
May to August (late spring to late summer); one of the longest-blooming flowering trees
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Similar flowers: silk tree flowers and geranium (pelargonium)s also share similar meanings.
Cultural Significance
In Chinese culture, Albizia julibrissin carries one of the most poetic common names in all of botany: he huan shu, meaning "collective happiness tree" or "tree of happiness shared together." The name reflects the belief that placing the tree near a home promotes marital harmony, relieves anxiety, and fills the household with a gentle, communal joy. In the language of flowers adapted from Chinese tradition, the mimosa flower is associated with openness of heart and the willingness to be moved by beauty and love. The tree was introduced to European gardens in the 18th century, where it was admired for the extraordinary delicacy of its feathery foliage and powder-puff flowers. In Persian tradition, julibrissin literally means "silk flower," a name that perfectly captures the soft, sensuous texture of each bloom. Its long summer bloom season made it beloved in Victorian gardens as a symbol of lasting happiness.Shop Our Floral Collection
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Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun; requires heat to bloom freely; does not flower well in shade
Water
Drought tolerant once established; thrives in hot, dry conditions; avoid overwatering in established trees
Soil
Well-drained, Sandy, Loamy, Clay-tolerant, Poor soils tolerated, Alkaline to slightly acidic, pH 6.0–8.0
Expert Growing Tips
Plant in full sun in poor to moderately fertile, well-drained soil for best flowering with minimal mess
Be aware that this tree is listed as invasive in many US states and other countries; check local regulations before planting
Consider sterile or low-fertility cultivars such as Endurance or Boubri where invasiveness is a concern
Prune in late winter while dormant to shape; the tree bleeds sap if pruned when in active growth
Despite its ornamental beauty, consider planting native alternatives with similar summer flower impact in regions where it is invasive
Uses & Benefits
Ornamental Uses
- Specimen or accent tree for summer flower interest
- Patio or courtyard shade tree (note: messy)
- Hummingbird and butterfly garden tree
- Fast-growing privacy screen or windbreak
- Tropical-look garden feature in warm climates
Traditional Uses
- In Traditional Chinese Medicine, the bark (he huan pi) has been used for centuries as a remedy for anxiety, insomnia, depression, and irritability
- The dried flowers (he huan hua) are used in TCM as a calming nervine and heart tonic
- Scientific research has confirmed sedative and anxiolytic compounds in the bark, though clinical use requires professional medical guidance
- The seeds contain a neurotoxin called DOPA (L-3-cyanoalanine) that is toxic to livestock and dogs and should never be ingested
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Albizia julibrissin
What does Albizia julibrissin symbolize?
The silk tree symbolizes collective happiness, harmonious marriage, and open-hearted affection. In Chinese tradition, the tree is called "he huan shu" meaning "tree of happiness shared together," and is associated with marital harmony and the relief of anxiety and sorrow.
Is Albizia julibrissin invasive?
Yes, it is considered invasive in many parts of the eastern United States, where it has escaped cultivation and spread along roadsides, disturbed areas, and forest edges. It is listed as invasive by multiple state councils. Always check local regulations and consider sterile cultivars or native alternatives before planting.
Is the Mimosa tree toxic to dogs?
Yes. The seeds contain a neurotoxin (L-3-cyanoalanine) that can be harmful to dogs if ingested, causing weakness, trembling, and potentially more serious symptoms. The plant should be planted away from areas where dogs can access fallen seeds and pods.
Why is Albizia julibrissin called the Silk Tree?
The name silk tree refers to the soft, silky texture of the long, delicate staminal filaments that make up each flower head. The species name julibrissin is a Persian term literally meaning "silk flower," reflecting the same quality noticed by Persian speakers in its native range.
How long does the Silk Tree bloom?
Albizia julibrissin is one of the longest-blooming flowering trees, producing flowers continuously from late May or June through August. This extended display throughout the hottest months of summer, when few other trees are in flower, makes it particularly valuable ornamentally.
Available Colors
Quick Facts
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Silk Tree Flower
Albizia julibrissin
Silk Tree is a graceful, fast-growing deciduous tree from Asia, producing extraordinary powder-puff flowers of silky pink and white stamens that rise above feathery, fern-like foliage. Its flowers, leaves, and pods have a theatrical quality — the leaves fold up at night and in rain — earning it a poetic place in Asian culture as a symbol of love and togetherness.
Geranium (Pelargonium)
Pelargonium spp.
Commonly known as geraniums, Pelargoniums are popular for their vibrant blooms and varied foliage. They symbolize comfort, friendship, and good wishes, brightening gardens and homes.
Honeysuckle
Lonicera periclymenum (and other spp.)
Honeysuckle is a fragrant climbing vine known for its sweet-scented tubular flowers. It symbolizes devoted love, happiness, and sweet memories.