Hi-Yield Ammonium Sulfate 21-0-0 | 16lb

Nitrogen and Sulfur Fertilizer for Acidic Feeding, 16lb

High-pH soil can make feeding acid-loving plants more difficult, especially where nitrogen and sulfur are part of the plan. Hi-Yield Ammonium Sulfate 21-0-0 supplies nitrogen with the acidifying addition of sulfur.

The 16lb bag fits lawns, shrubs, vegetable gardens, flower gardens, and blueberry plantings. Water generously after application and follow the current label for rates.

Key Features & Benefits

• 21-0-0 analysis - source product name confirms the nitrogen-forward fertilizer ratio.
• Nitrogen with sulfur - manufacturer copy describes nitrogen plus acidifying sulfur.
• High-pH soil use - source copy lists alkaline soils and soils with higher pH.
• Blueberry preference - manufacturer copy describes ammonium sulfate as a preferred fertilizer for blueberries.
• Lawn coverage note - manufacturer guidance says the 16lb bag covers 3,200 sq ft for lawn use.

Who Should Use Hi-Yield Ammonium Sulfate

Use this fertilizer when a label-directed program calls for ammonium nitrogen and sulfur, especially around acid-loving crops such as blueberries. Soil testing helps confirm whether pH and nutrient conditions fit.

About Hi-Yield Ammonium Sulfate

Hi-Yield lists Ammonium Sulfate 21-0-0 in multiple sizes, including a 16lb bag. Manufacturer copy highlights trees, shrubs, flowers, vegetables, lawns, alkaline soils, and blueberry fertilization.

Frequently Asked Questions

What does 21-0-0 mean?

The numbers describe nitrogen, available phosphate, and soluble potash. This product supplies nitrogen without phosphate or potash in the analysis.

How does sulfur help?

Sulfur is described by the manufacturer as an acidifying addition. That can matter where alkaline or higher-pH soil is part of the management problem.

When should I water it in?

Manufacturer copy says to water generously after application. Watering helps move the fertilizer into the root zone and reduces surface residue.

Is it only for blueberries?

No, source copy lists trees, shrubs, flowers, vegetables, and lawns. Blueberries are highlighted because they use this nitrogen form well and prefer acidic conditions.

How much area does the 16lb bag cover?

Manufacturer guidance says the 16lb bag covers 3,200 sq ft for lawn use. Other plants and beds have separate label rates.