Albizia Species, East Indian Walnut, Rain Tree, Siris Tree, Woman's Tongue

Albizia lebbeck

Family: Fabaceae (fab-AY-see-ee) (Info)
Genus: Albizia (al-BIZ-ee-uh) (Info)
Species: lebbeck (LEB-ek) (Info)
Synonym:Acacia lebbeck



Water Requirements:

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Sun Exposure:

Full Sun



Foliage Color:

Unknown - Tell us


over 40 ft. (12 m)


over 40 ft. (12 m)


USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Where to Grow:

Unknown - Tell us



Bloom Color:

White/Near White

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Summer

Late Summer/Early Fall

Other details:

May be a noxious weed or invasive

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

From seed; direct sow outdoors in fall

From seed; germinate in a damp paper towel

Scarify seed before sowing

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds


This plant is said to grow outdoors in the following regions:

Bartow, Florida

Big Pine Key, Florida

Boca Raton, Florida

Lutz, Florida

Melbourne, Florida

Palm Bay, Florida

Port Saint Lucie, Florida

Sarasota, Florida

Sebring, Florida

Grenoble, Rhône-Alpes

San Antonio, Texas

Santa Fe, Texas

show all

Gardeners' Notes:


On May 30, 2018, FoxtailFavPalm from Palm Bay, FL (Zone 9b) wrote:

The tree is beautiful. Its quick growing and I find the seed pods very interesting. Have the kids pick them up if they fall in the yard, itll give them something to do. For everyone whining about it being an invasive species, check what other plants are included on that list. In my area at least we are discouraged to plant a few of our favorite palm trees. The queen palm, Areca palm, and fishtail palm are all considered invasive but everyone uses them in their landscapes. Stop being so negative.


On Mar 23, 2016, coriaceous from ROSLINDALE, MA wrote:

Naturalized in California, Texas, Florida, Puerto Rico, and Hawaii. According to the USDA, this damages natural areas in Florida and Hawaii, at least.

Those who wish to use a plant for medicinal purposes always have the option of importing an extract from places where it can be grown without harm. There is no need to sacrifice our public lands to cater to the needs of a few.


On May 16, 2013, siinew from San Antonio, TX wrote:

To all of you whining about this being an invasive species and saying things like "PEOPLE, EDUCATE YOURSELVES," I have this to say: "PEOPLE, EDUCATE YOURSELVES."
This is an AMAZING medicinal plant. The fact that it is invasive means there is that much more of it to use. It has been used in India for generations as a wound healer, among other things (the root), and here is a link to one of several studies on the subject, for those of you who love plants but are pretty much useless in regards to actual information of how we should be using them: [[email protected]]


On Mar 9, 2013, AKajunGurl from Church Point, LA wrote:

I was hopeful when I acquired these seeds they were of the Royal Poinsettia, but as it turns out it's this variety of a Mimosa on steroids. I felt fortunate in my ability to get so many to germinate having scoffed the seeds prior. I planted 8 of them last spring and was amazed at the growth in one growing season. Some a mere 8' and others upward of 14 feet. I am just now learning these are considered invasives. I live in South Louisiana and was looking for a tree that was fast growing (this one is) that would provide shade very quickly (I'm in my 50's) and wanted to be able to enjoy some while I was healthy and could still get about . These trees apparently will provide what I am looking for. My concern, will generations to come regret my decision? I did notice that Louisiana is not mentio... read more


On Jan 2, 2012, minpin3165 from Port Charlotte, FL (Zone 10b) wrote:

I know folks like this tree cause its pretty, etc. BUT please folks I work for DEP eradicating exotic plants from our state and it is costly and deadly for animals and plants that belong here.
there are so many natives to use, educate yourself!!!!
go to your local University extension or go to local library most have a master gardener there once to twice a month. Go to Florida Natives website, lots of them out there.
Also plant for butterflies adn Monarachs too


On Jan 2, 2012, nativelyeager from Brooksville, FL wrote:

Sorry about being NEGATIVE, but positive comments re Albizia lebbeck and other pest plants always bug me. Overcoming the prettiness of so many our pest plants is tricky, but knowing there are so many wonderful alternatives helps. Thankfully previous commenters already pointed this out, as well as A. lebbeck's Cat I FL EPPC listing. One other important thing.....You might want to acknowledge this tree has a high potential to get ahold of your property (or your neighbors' land or the conservation area nearby!) causing the need to get rid of it. Then you need to know that can be difficult -- annoying at the least -- because it is a big, strong legume, with a robust tap root and a resistence to commonly used herbicide. Best? Just don't plant A. lebbeck, please, and if there's one nearby, wat... read more


On Mar 11, 2005, NativePlantFan9 from Boca Raton, FL (Zone 10a) wrote:

Woman's Tongue or Siris Tree (Albizia lebbeck) is a Category One Invasive by the Florida Exotic Pest Plant Council (FLEPPC). It is very invasive in many natural and disturbed areas in central and southern Florida, the Keys, the Bahamas, the Caribbean, Hawaii, and many of the Pacific Islands (zones 9a through 11). It is listed by the PIER (Pacific Islands Ecosystems At Risk) project as a species that has the possibilty to do serious potential harm to native plant species and island ecosystems.

The small to medium, yellowish, numerous seedpods reseed everywhere and abundantly, and the seeds are dispersed by birds to areas where they sprout, quickly grow into a large tree (can grow up to 30 or 40 feet high and possibly more) and quickly crowd out native plant species. Other wil... read more


On Dec 21, 2004, TREEHUGR from Now in Orlando, FL (Zone 9b) wrote:

Easy to mistake this for a locust tree or a number of other species. There are a million and a half better alternatives for this area. Before I knew what it was I planted a seed in a cup and 2 days later there was a 3" seedling in the cup. Yikes! Can you say Little shop of horrors! Class I invasive fleepc dot org


On Jun 5, 2004, Hardy_R from Nassau,
Bahamas wrote:

Also grows in the Bahamas.


On Jun 7, 2003, MotherNature4 from Bartow, FL (Zone 9a) wrote:

This is a Category I invasive pest in central and south Florida according to the Florida Exotic Pest Plant Council. It has trashy seed pods that hang on the tree after flowering, and it reseeds everywhere.


On May 24, 2003, Monocromatico from Rio de Janeiro,
Brazil (Zone 11) wrote:

The closest tree is 500 meters away from me, but when it blooms I can sense the sweet smell that comes from the flowers like it was planted right here next to my window.


On Aug 22, 2002, FLSuncoast from Sarasota, FL (Zone 9a) wrote:

This tree is considered invasive here in Florida but the blooms are beautiful and this tree does provide a good amount of shade. Do not plant near anything the flowers can fall on as they are messy and can stain the paint on an automobile. Its roots are shallow and will destroy a walkway, driveway, etc. if planted too close. Wildlife love the seed pods.