As we head deeper into the summer season, the team at AC Plant & Turf has been spotting more and more of a familiar lawn invader across local properties: Dallisgrass.

What Is Dallisgrass?

Dallisgrass (Paspalum dilatatum) is a warm-season perennial weed that’s known for its coarse texture and clumping growth habit. Unlike most turfgrasses, it grows faster and taller, forming thick, gray-green clumps that stick out in otherwise uniform lawns.

Why Is It Showing Up Now?

Dallisgrass thrives in hot, humid conditions—especially when paired with consistent rainfall or overnight showers. That’s why this time of year provides ideal conditions for it to take hold.

Unlike many weeds that can be managed early in the season with spring pre-emergent treatments, Dallisgrass often breaks through later. That’s because it spreads not only by seed but also through underground rhizomes, making it a persistent mid-to-late summer nuisance.

What Makes It Difficult to Control?

Its aggressive growth and ability to spread underground make Dallisgrass particularly tough to manage once established. While it may fade as temperatures cool in the fall, it tends to return season after season if not addressed early or consistently.

One long-term strategy to help reduce its spread is maintaining a thick, healthy lawn. Denser turf can limit the space and resources available for weeds like Dallisgrass to thrive. Practices like core aeration and overseeding in the fall can help improve lawn density over time.

Final Thoughts

Dallisgrass is one of those weeds that shows up when lawns are under stress and conditions are just right. While it’s especially noticeable now, awareness is key.

At AC Plant & Turf, we believe knowledge is just as important as treatment. The more you know about what’s growing in your lawn, the better prepared you are to protect and improve it.

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