What is St. Augustine grass?

St. Augustine is a coarse-textured, warm-season grass that dominates lawns across Austin and the surrounding region. It spreads by stolons (horizontal stems) rather than rhizomes, forming a dense mat when healthy. The grass thrives in the heat and humidity of Texas summers and can handle the region's clay soils better than many alternatives.

One major strength of St. Augustine is its tolerance for partial shade, making it a practical choice for properties with mature oak trees or afternoon shadow. It also withstands moderate foot traffic and recovers from damage more quickly than cool-season grasses. However, it requires consistent moisture during hot months, particularly in the first year after establishment, and cannot survive prolonged drought without supplemental watering.

The grass is vulnerable to two significant pest and disease problems common in Central Texas. Chinch bugs feed on the plant's sap, causing brown, irregular patches that often appear first in hot, sunny areas. Gray leaf spot, a fungal disease, spreads rapidly in warm, humid weather and produces tan lesions on leaf blades. Both conditions may require treatment beyond normal lawn care. Property owners dealing with persistent problems often consult lawn-care professionals to diagnose the issue and determine the right intervention.