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How to Control Texas Spider Lily

Texas Spider Lily

Hymenocallis liriosme

More Info & Photos of Texas Spider Lily

This plant species rarely becomes problematic.

Non-Herbicide Management Options

1. Physical Management Options

Texas spider lily can be cut and removed. However, physical control is difficult because they can re-establish from seeds or remaining roots.

2. Biological Management Options

At this time, there are no biological control methods for Texas spider lily.

Herbicide Control Options

Always read the product label for directions and precautions, as the label is the law. Click on the name of the product to see the label. Read the label for specific water use restrictions.

The active ingredients that have been successful in treating American water plantain include:

  • 2,4-D

1) 2,4-D

2,4-D compounds are systemic herbicides. Systemic herbicides are absorbed and move within the plant to the site of action. Systemic herbicides tend to act more slowly than contact herbicides.

Common trade or product names include but are not limited to:

  • Navigate
  • Weedar 64
  • Restore

Precautions

One danger with any chemical control method is the chance of an oxygen depletion after the treatment caused by the decomposition of the dead plant material. Oxygen depletion can kill fish in the pond. If the pond is heavily infested with weeds, it may be possible (depending on the herbicide chosen) to treat the pond in sections and let each section decompose for about two weeks before treating another section. Aeration, particularly at night, for several days after treatment may help control the oxygen depletion.

One common problem in using aquatic herbicides is determining area and/or volume of the pond or area to be treated. To assist you with these determinations see SRAC #103 Calculating Area and Volume of Ponds and Tanks.

Many aquatically registered herbicides have water use restrictions (See General Water Use Restrictions).

To see the labels for these products click on the name. Always read and follow all label directions. Check label for specific water use restrictions.

Cultivation Options

Texas spider lily can be grown by collecting seeds or dividing bulbs and planting into moist soil areas with partial to full sun during early spring.

Questions?

If you need assistance, contact the Ag & Natural Resources agent in your county or hire a professional.

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2023 Aquatic Webinars

Feb. 24: Ornamental Ponds and Water Gardens

Mar. 21: Selecting Herbicides for Aquatic Vegetation Control

Apr. 18: Pond Stocking 

May 16: Aquatic Plant ID & Management Options

Jun 20: Fish Management Strategies

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Photo Credits: The majority of the aquatic plant line drawings are the copyright of the University of Florida Center for Aquatic Plants (Gainsville). They are used with permission.

Aquatic plant photographs were provided by David Bayne, Jim Davis, Kelly Duffie, Billy Higginbotham, Michael Masser, John Clayton, Chetta Owens, Diane Smith, Joe Snow, Don Steinbach, Bridget Robinson Lassiter and Peter Woods.

You may use these photos, so long as you give credit to AquaPlant.

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