Said It Here

White fuzzy mold growing on artificial turf

Artificial turf can develop fuzzy, stringy white or grey fungus and mold spots, particularly in patchy areas where moisture gets trapped. Homeowners are left wondering whether this growth will clear up naturally if left to dry, or if they need to apply a fungicide before it ruins the lawn.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Power washing or pressure washing the affected area
  2. 2
    Using artificial turf cleaners
  3. 3
    Replacing the faux grass with hardscape
  4. 4
    raking patchy areas carefully and reseeding
  5. 5
    applying grass fertilizer sparingly to promote growth
  6. 6
    watering twice a day unless raining

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/lawncare1 person · September 2026

“Fast forward to yesterday when walking out I noticed a lot of fuzzy, stringy white/grey spots which I think is a fungus on the lawn, especially in the patchy areas.”source ↗

“Is this something I can ignore and let dry and clear up before watering again or do I need to buy some kind of fungicide before it kills off my grass”source ↗

DatRat182 · r/lawncare · 4 upvotes
r/Landscaping1 person · September 2026

“This artificial turf was installed January this year and it has started to mold. There is also mold around the concrete edge.”source ↗

“Has anyone experienced this before?”source ↗

Fancy_Unicorn_Too · r/Landscaping

Where this came up

People with this problem also raised