Dallisgrass is a clumping perennial grass that grows faster than Bermuda, leaving coarse tufts and tall seed stalks a day or two after mowing.
- Scientific name
- Paspalum dilatatum
- Type
- Warm-season perennial grass
- Most visible
- May–October
How to Identify Dallisgrass
- Coarse, light-green clumps
- Seed heads with rows of seeds on several side branches
- Grows outward in a circle, leaving a dead center over time
- Rhizomes are short and knobby
When It Shows Up in Oklahoma Lawns
Comes back from the same clumps each spring and spreads by seed. Common in wetter or poorly drained areas.
How to Control Dallisgrass
- Dig out clumps including the crown
- Spot-treat with a product labeled for dallisgrass in your grass type
- Repeat applications are often needed
- Pre-emergent does not stop existing clumps