Care guide for Albizia julibrissin mimosa. Where to plant the fast growing pink mimosa tree and where you should avoid planting it. Alternate names for this species include pink siris and silk flower tree.
The pink silk tree provides loads of ferny foliage all summer. Around late May or early June, it will burst into an explosion of pink and white powder puff flowers with silky stamens. These blooms are sometimes (under certain weather conditions) sweetly fragrant.
The summer flowering pink mimosa blooms once each year and the blooming period spans several weeks. The fluffy flowers are attractive to butterflies and hummingbirds.
The blooms are followed by flat, brown seed pods. We'll talk more about these later...
Mimosa Trees for Sale
from: Nature Hills Nursery, Inc.
Albizia julibrissin is nothing if not adaptable. In fact, this is one of the reasons it is so beloved of home gardeners. It is dead easy to grow!
It does not care how rich or poor the soil it grows in might be, and it can't be bothered about the pH. It likes regular water but if you forget or it doesn't rain for a while, it shrugs.
Being hardy from zones 5b-10, pink siris can handle both heat and cold.
Give it full sun and regular water until it gets established and it will reward you with fast growth.
This brings me to the second reason for the pink mimosa's popularity:
If you have an area that is too sunny. This tree will remedy that in a hurry.
A mature mimosa tree can be expected to reach 35 feet in height with a 40 foot spread. And it can put on 25 feet of this height within 5 years!
With a mature height of 20 feet, the dark-leaved 'Summer Chocolate Silk Tree' may be a better compliment to smaller landscapes.
Remember those seed pods we spoke about earlier? Well, I've got good news and bad news about those.
First the good news. They provide necessary food for wildlife throughout the winter when other food sources can be scarce.
Now the bad news. They are long and when they drop, they make a noticeable mess. Also, the seeds sprout easily which may be viewed as a positive or negative depending on your perspective.
If you wish to propagate the trees to plant in other areas, to give as gifts, or to sell; easy sprouting is a plus.
If seedlings are constantly coming up in your flower beds, this same trait is a definite minus.
It is best to plant A. julibrissin in open lawn where any seedlings will be managed by the mower and its fallen blooms and pods can be easily raked up.
Return from Albizia julibrissin Mimosa to Plant Guides Home Page