Scotts Turf Builder Moss Control granular fertilizer — treats 10,000 sq ft, kills moss and thickens lawn

Scotts Turf Builder with Moss Control is an all-in-one moss killer and fertilizer designed to eliminate moss while feeding and thickening lawns up to 10,000 sq. ft.

This granular formula targets actively growing moss in cooler seasons and supplies nutrients that encourage grass to fill bare spots. Apply during winter or spring when moss is visible and lawns are moist; mowing tall grass first exposes low-growing moss for better contact. A single 50 lb. bag treats up to 10,000 square feet when applied at the directions below.

How quickly will I see moss die after application?

Moss typically browns and dies within a few days to a couple of weeks, depending on weather and moss density. You may notice temporary blackening of grass blades immediately after spreading; this is normal and fades once you mow.

• Moss discoloration often appears within days.
• Heavier moss stands may take longer to disappear.
• Wait to mow until dead moss is brittle for easier removal.

How do I apply it for best results?

Use a Scotts spreader for even coverage and follow the recommended settings for your spreader type. Apply when the lawn is moist, after mowing tall grass, and avoid application during drought or extreme heat for best uptake.

• Scotts broadcast/rotary spreader: setting 5 (regular) or 5 ¾ (heavy).
• Scotts drop spreader: setting 8 (regular) or 8 ½ (heavy).
• Always wait 6–8 weeks between repeat applications.

Will it harm my lawn or what grass types is it safe on?

Scotts formulates this product to kill moss without damaging most turfgrass varieties when used as directed. Some lawns may show temporary blade darkening after application, which disappears after mowing and normal growth resumes.

• Safe on most common grass types when label instructions are followed.
• Temporary blackening of blades is cosmetic and short-lived.
• Feeding action helps grass thicken to crowd out future moss.

When should I repeat treatment and how does it help future moss control?

Space applications at least 6–8 weeks apart; repeat treatments during active moss growth seasons if needed. In addition to killing existing moss, the fertilizer component strengthens turf so grass can better compete with moss over time.

• Minimum 6–8 week interval between applications.
• Apply during winter or spring when moss is actively growing.
• Regular feeding improves soil uptake of water and nutrients.

Who is this for: Scotts Turf Builder with Moss Control is aimed at homeowners and property managers who want a straightforward, dual-action product to eliminate moss and encourage a thicker, healthier lawn across up to 10,000 sq. ft. It’s especially useful for yards that stay damp, show persistent moss patches, or have thin areas that need filling. Use it as part of a seasonal turf-care plan when temperatures and moisture favor moss activity, and pair it with proper mowing and watering practices for the best long-term results.

• Kills moss and thickens grass to fill in bare spots
• Kills moss, not lawns—when used as directed
• Improves lawn's ability to absorb water and nutrients versus an unfed lawn
• Apply during winter or spring when moss is actively growing
• Feeds to help prevent future moss problems