Native Plants
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Monday - February 23, 2015
From: Lindale, TX
Region: Southwest
Topic: Invasive Plants, Grasses or Grass-like
Title: How to eliminate Sawgrass from a small lake in Lindale, TX?
Answered by: Jimmy Mills
QUESTION:
We live on a small acre lake (about 65 acres) and the majority of the lake is surrounded by what the locals are calling saw grass. From the description on the website, I believe they are correct. The question is how is the best way to eliminate the saw grass as it appears that it is very slowly en-croaching the lake?ANSWER:
The plant commonly called saw grass is in the sedge family in the genus Cladium, and there are two species that grow near you in Lindale, Smith County, Texas. Cladium mariscoides (Smooth sawgrass) grows in both Henderson and Anderson Counties, and Cladium mariscus ssp. jamaicense (Jamaica swamp sawgrass) grows in Anderson County. It has been described as the signature plant of the Florida Everglades.
With such a description, you might imagine that it is an aggressive, invasive plant. Attempts at eradication and control include burning, altering the hydroperiod in the habitat, and controlling nutrient levels. The links below discuss experiments utilizing these methods
hydroperiod alteration
changing nutrients
These are fairly technical, but one take home message seems to be that eliminating the saw grass may leave the lake open to some other invader such as cattails.
I would recommend contacting the folks at the Smith County office of Texas A&M AgriLife Extension for some help closer to home.
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