Yellow nutsedge is a fast-growing sedge with triangular stems that sticks up above the lawn days after mowing. It spreads from underground tubers.
- Scientific name
- Cyperus esculentus
- Type
- Perennial sedge
- Most visible
- May–September
How to Identify Yellow Nutsedge
- Triangular stems that roll between fingers
- Shiny, yellow-green blades
- Yellowish seed heads
- Grows faster than turf
When It Shows Up in Oklahoma Lawns
Emerges in late spring and is most common in wet, poorly drained areas.
How to Control Yellow Nutsedge
- Avoid pulling, which leaves tubers behind
- Use a sedge-specific herbicide while plants are young
- Reduce overwatering
- Fix drainage