What South Carolina Homeowners Need to Know About Mimosa Wilt

September 16, 2026

Mimosa trees (Albizia julibrissin) are cherished in South Carolina for their delicate, feathery leaves and vibrant, pink, puffball flowers that bloom throughout the summer. However, these beautiful trees are highly susceptible to a devastating fungal disease known as Mimosa Wilt, caused by Fusarium oxysporum. This soil-borne pathogen can quickly turn a thriving mimosa into a sickly shadow of its former self.

The first signs of Mimosa Wilt often appear in late spring or early summer, coinciding with the tree's active growth period. Look out for these telltale symptoms:

Wilting Leaves: This is often the most noticeable symptom. Leaves, typically starting on one branch or one side of the tree, will begin to yellow, droop, and then turn brown.
Leaf Drop: Infected leaves will prematurely fall from the tree.
Vascular Discoloration: If you carefully scrape away a small section of bark from an affected branch, you might see dark, reddish-brown streaking in the wood beneath. This discoloration indicates the fungus is clogging the tree's vascular system.
Branch Dieback: As the disease progresses, affected branches will die back, eventually leading to the decline and death of the entire tree, often within a single growing season.

Unfortunately, there is no effective chemical treatment to cure a mimosa tree once it has contracted Mimosa Wilt. The fungus persists in the soil for many years, making it challenging to replant another mimosa in the same location.

If you suspect your mimosa tree has Mimosa Wilt:

Confirm the Diagnosis: Contact a local Plant Health Care specialist to make sure.
Removal: Infected trees should be removed promptly to prevent potential spread, although direct tree-to-tree spread is less common than soil-borne transmission.
Future Planting: Avoid planting another mimosa tree in the same spot where an infected tree once stood. Consider planting resistant alternatives like crape myrtle, dogwood, or redbud, which offer similar aesthetic appeal without the susceptibility to Mimosa Wilt.

By being vigilant and understanding the signs of Mimosa Wilt, South Carolina homeowners can protect their landscapes and make informed decisions about tree health.