Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
ammonia fertilizer for plants 21-0-0 Ammonium Sulfate Lawn FertilizerFast Acting Nitrogen with Added Sulfur Ideal for High pH Soils. 21 0 0 Ammonium Sulfate delivers 21% fast release nitrogen along with 24% sulfur, making it an excellent choice for lawns that need quick green up while improving nutrient availability in alkaline soils. This is a preferred nitrogen source for experienced lawn enthusiasts and professionals who want reliable performance without the volatility concerns of urea. Why Choose Ammonium Sulfate
Fast-Acting Nitrogen with Added Sulfur — Ideal for High pH Soils.
21-0-0 Ammonium Sulfate delivers 21% fast-release nitrogen along with 24% sulfur, making it an excellent choice for lawns that need quick green-up while improving nutrient availability in alkaline soils.
This is a preferred nitrogen source for experienced lawn enthusiasts and professionals who want reliable performance without the volatility concerns of urea.
Why Choose Ammonium Sulfate Over Urea?
- Lower volatilization risk compared to urea
- Helps lower soil pH over time in alkaline soils
- Improves iron availability for deeper green color
- Excellent for spoon-feeding programs
- Fully soluble for liquid applications
If you have high pH soil or struggle with yellowing turf despite fertilizing, ammonium sulfate is often the better nitrogen source.
Best Used For
- Correcting nitrogen deficiency
- Summer feeding programs
- High pH or alkaline soils
- Liquid lawn applications
- Boosting color before events or peak growth periods
Application Rates
Maximum recommended nitrogen rate: 1 lb N per 1,000 sq ft per application.
- 18 lbs. covers up to 7,560 sqft
- 50 lbs. covers up to 21,000 sqft.
Water in after application for best results.
Liquid or Granular
- Dissolves easily for spray applications
- Can be applied granular with a broadcast spreader
Looking for controlled-release nitrogen? Consider our professional blended fertilizers for longer feeding and reduced burn risk.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy