This weed is often mistaken as grass when it's actually a "sedge". It grows more rapidly than turfgrass, making it very unsightly

Yellow Nutsedge Facts:

• Emerges in late spring and grows until fall weather begins to cool
• Perennial weed
• Triangular stems of shiny, yellow-green leaves
• Can grow to 18-24"
• Prefers wet areas with poor drainage but can develop almost anywhere
• Mature plants develop spiky yellow-green seedheads in mid-late summer
• Plants are spread by seeds and underground "nutlets". Can crowd-out desirable turfgrass.

Control Tips:

• Although plants are easily pulled, this only detaches leaf tissue from underground "nutlets", encouraging re-growth.
• Spot-spray with post-emergent materials specifically formulated for nutsedge control, throughout summer.
• Thick turfgrass areas will yield fewer weeds. Fertilize regularly, aerate and overseed each fall.
• Mowing at 3-4" will encourage a healthy lawn and reduce weed growth. 
• Irrigate lawn areas regularly so they receive 1-2" of water each week. 
• Proactive, comprehensive lawn care programs are recommended for best control.