Organic Control of Stickerburrs in Sandy Texas Lawns

Stickerburrs (lawn burweed) thrive in sandy, nutrient-poor soils — exactly the conditions found in many South Texas lawns. Chemical herbicides offer temporary relief but damage soil health. An organic strategy addresses the root cause: poor soil biology.

Feed the Soil, Not the Weeds

Beneficial soil microbes, nourished by carbon-rich amendments, create conditions where desirable grasses outcompete weeds. Two proven options:

• Corn gluten meal: A natural pre-emergent that inhibits seed germination while adding nitrogen. Apply at 20 lbs per 1,000 sq ft in early fall and spring.
• Sugar or dry molasses: Sugar (1 lb per 250 sq ft) or dry molasses (10 lbs per 1,000 sq ft) feeds microbes that improve soil structure and nutrient availability.

Long-Term Management

Combine amendments with deep, infrequent watering and proper mowing height to strengthen carpetgrass or your chosen turf. Over time, enriched soil suppresses stickerburr germination naturally. For deeper guidance, consult Howard Garrett’s resources at dirtdoctor.com.