Ammonium Sulfate 21-0-0 Fertilizer

Name: Lawn Synergy Ammonium Sulfate 21-0-0 Fertilizer - Ammonium Sulfate 21-0-0 Fertilizer
Brand: Lawn Synergy
SKU: 45565076897930
Price: 39.99 USD
Availability: InStock
Rating: 4.375 (5 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$39.99

Quantity

Color

Black

Quantity

Description

Fast-release nitrogen for quick green-up and improved lawn color. 21-0-0 Ammonium Sulfate provides 21% nitrogen and 24% sulfur to support active growth, improve turf color, and supply sulfur to lawns growing in high-pH soil.
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Reviews

4.4

8 ratings

I use Lawn Synergy AS for smaller spoon feeding between my scheduled 20-0-10 applications every 6 weeks. Definitely helps keep that deep green color, but get ready to mow more frequently.

Kevin · June 30, 2026

My line is better than expected wonderful product. I even told my neighbors and some of my family. You got a good thing thank you.

Bruce · April 29, 2026

Really great product and my lawn geern

Mohammad · May 18, 2026

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Lawn Synergy

4.7 (933)

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Description

Reviews

4.4

8 ratings

I use Lawn Synergy AS for smaller spoon feeding between my scheduled 20-0-10 applications every 6 weeks. Definitely helps keep that deep green color, but get ready to mow more frequently.

Kevin · June 30, 2026