PlantsAlbizia→Mimosa Tree (Albizia julibrissin)

Common names:
Give a thumbs up Mimosa Tree
Give a thumbs up Persian Silk Tree
Give a thumbs up Silk Tree
Give a thumbs up Pink Siris
Give a thumbs up Pink Silk Tree

General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Moderately alkaline (7.9 – 8.4)
Minimum cold hardiness: Zone 6a -23.3 °C (-10 °F) to -20.6 °C (-5 °F)
Maximum recommended zone: Zone 9b
Plant Height: 15-40 feet
Plant Spread: 20 to 40 feet
Leaves: Deciduous
Fruit: Other: green then brown pods 5 to 7 inches long
Fruiting Time: Late summer or early fall
Late fall or early winter
Flowers: Showy
Flower Color: Pink
Flower Time: Summer
Late summer or early fall
Uses: Shade Tree
Flowering Tree
Will Naturalize
Dynamic Accumulator: Nitrogen fixer
Wildlife Attractant: Bees
Resistances: Drought tolerant
Salt tolerant
Pollinators: Various insects
Containers: Not suitable for containers
Miscellaneous: Tolerates poor soil


Garden Tours:  Valleylynn, Lynn SmithGarden Tours: Valleylynn, Lynn Smith
By Sharon on November 12, 2011

Let's take a trip this week to Oregon and visit the lovely gardens created by Lynn Smith and her husband, Cliff. It's always fun to step out of our own climate to see what grows well in another, and sometimes it's even more fun to see what our climates have in common. You are going to love what you see!

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Posted by valleylynn (Oregon City, OR - Zone 8b) on Oct 1, 2011 8:47 AM

This tree tends to be an invasive species in the Eastern half of the United States, but not in the Pacific Coast states, where it is used widely with no invasive tendencies.
I find the leaves very interesting. When it rains the leaves slowly close and they always close at night. You can also run your hand across the leaves and they will start closing.
In mid-summer my tree covers itself in beautiful pink flower puffs, which the bees, butterflies and hummingbirds love.
Once established, it is somewhat drought tolerant.

It can be a problem for people with pollen allergies.

Introduced to the United States in 1745 from China as an ornamental tree.

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Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jul 23, 2020 11:00 AM

I first saw this tree planted somewhat commonly in far southern Illinois in the 1970's. It is occasionally planted in southeast Pennsylvania and has escaped cultivation to be seen here and there in the wild along forest edges and in some waste places. It is native from Iran to central China. it is a fast growing tree, over 2 feet/year. It has a tropical appearance; sort of Acacia-like with a vase-shaped habit, often with a few trunks, and a flat topped crown. It does not develop fall color. It often has problems with Fusarium Wilt Disease and Mimosa Webworm; plus some canker & leaf spot & rust disease & a virus that causes chlorotic leaf stippling is possible. There may be a few cultivars out there resistant to the wilt disease and nematodes. It is not a good quality tree with being weak-wooded and messy. I have not seen any conventional nurseries selling it in southeast Pennsylvania, but there are cheap mail order nurseries that do sell it.

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Posted by Kathy547 ( Arkansas - Zone 8b) on Dec 20, 2015 9:34 AM

Mimosa trees are common in the South, especially around old home sites. In fact, many Southerners consider these to be weed-type trees because they tend to reseed easily. A lot of them will have trunks that branch close to the ground, making them good climbing trees for kids. It can be a bit messy when the flowers fall to the ground.

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Posted by RadlyRootbound (East-Central Mississippi - Zone 8a) on Feb 21, 2019 9:40 AM

There is a strain of Mimosa trees that is dominant in the Birmingham, Alabama area and has white flowers instead of pink. In fact, when going through that region, I don't recall seeing any Mimosas with pink blooms, just white ones, and they grow wild everywhere.

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Plant Events from our members
dragonfetti On November 24, 2014 Transplanted
Transplanted from sidewalk gardens to north cactus garden.
dragonfetti On March 1, 2014 Plant emerged
Have several volunteer trees.
AndreA33 On November 9, 2017 Transplanted
Récupéré à Marcenais
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Discussion Threads about this plant
Thread Title Last Reply Replies
Albizia Julibrissin (Silk tree) Seedling Leaves Turn White by ludipraxa Jan 27, 2022 12:12 AM 8
Can anyone identify this tree? by mkw037 Jan 20, 2022 2:32 PM 5
Is it worth my time to try water propagating tree branches? by Joezoe Dec 1, 2021 4:53 PM 11
Anyone know what this is by cleary46comcastnet Aug 21, 2021 5:35 PM 9
Mimosa tree (albizia) Cold Hardiness by morninggloryfreak Jun 21, 2021 5:23 AM 7
Shade garden "Vignettes" combo plantings by bumplbea Jul 28, 2021 8:29 PM 13
Mimosa Plant Propagation and Possible Rot/Mold by Blueleaf Apr 25, 2021 8:06 AM 3
What is this tree? Quickly spreading. Location: Turkey by rohffx Sep 11, 2020 3:17 PM 8
Please help ID this volunteer by scvirginia Feb 14, 2021 1:00 AM 17
fast growing shade tree for california zone 9b by ninashreeyahoocom May 25, 2020 6:13 PM 4

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