Dollarweed Domination: Sprinkler Systems and Soil Solutions

Sprinkler Systems: The Hidden Culprit

Daily light irrigation from sprinkler systems creates perfect dollarweed conditions: constant surface moisture, shallow grass roots, anaerobic soil. Neighbors without systems have deeper roots and fewer weeds.

Organic Recovery Plan

1. Reprogram sprinkler: deep, infrequent cycles (1 inch, weekly)
2. Or switch to soaker hoses with cycle-soak method
3. Apply sugar 1 lb/250-300 sq ft spring/fall
4. Mow 2-2.5" spring (encourages spread), 3"+ summer
5. Deep water to 6+ inches

Chemical Option (If Chosen)

WipeOut (Greenlight) kills all broadleaf weeds including dollarweed, safe for grasses. Does NOT affect grassy weeds.

Soil Building Details

• Gypsum (granulated, white) 1-2" annually for clay
• Cedar bark mulch incorporation for new beds
• Compost topdressing after aeration
• Earthworm introduction after chemical leaching

Poison Ivy Bonus

Sugar applications eliminated poison ivy in alleyways—same rich-soil principle.