Ammonium Sulfate
PassAmmonium Sulfate scores 66 out of 100, a Pass. Shoppers spend an estimated $177K a year here, search demand grew +87.4% this quarter, and an estimated 0.4% of orders come back.
- Flapen Score
- 66 / 100Top 13% of 8,839 Patio, Lawn & Garden niches · +10 vs the category median of 5666
- Market size
- $177K/yr122K searches / yr
- 90-day growth
- +87.4%search demand this quarter
- Competition
- 54%top-5 click share · 16 brands · 52 sellers
Flapen Score
Ammonium Sulfate against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Ammonium Sulfate is stronger. Inside it, weaker.
Market
The Ammonium Sulfate market on Amazon at a glance
Shoppers on Amazon United States searched for Ammonium Sulfate 122K times last year and spent an estimated $177K. The top 5 brands take 61% of clicks. Demand peaks in Mar–Apr–May–Jun–Jul. Flapen scores it 66 out of 100, a Pass.
01 · Demand
An estimated 4.8% of those searches ended in a purchase.
Shoppers searched for this 122K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.8% of those searches ended in a purchase. Searches in the last 90 days moved +87.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $177K a year.
- Searches, last 12 months
- 122K
- Growth, 90 days vs prior 90
- +87.4%
- Conversion, latest week
- 4.8%
- Market size, estimated
- $177Ka year
- Peak month
- June7.0× the quietest month
- Top search term
- ammonium sulfate57K searches a year
02 · Price
A sale here is worth $30.14.
Listings sell for $30.14 on average, from $9.63 to $76.95. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 250 to 500 of them. At $30.14 that is $8K to $15K a year per listing.
- Average price
- $30.14inside the $15 to $100 sweet spot
- Price range
- $9.63–$76.95
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $8K–$15K
- Returns
- 0.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
78% of listings pay for placement with sponsored ads. 57% ship with Prime. On an average day, 8.4% of listings are out of stock. The average listing ranks #1,093 within Soils, Mulches & Planting Media. It carries 612 reviews at 4.49 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 78%
- Prime listings
- 57%
- Out of stock, average day
- 8.4%
- Average rank
- #1,093in Soils, Mulches & Planting Media
- Average rating
- 4.49 starsAmazon United States average 4.42 stars
- Average reviews
- 612per listing
- Listings tracked
- 23
04 · Newcomers
2 of last year's 4 launches cleared the first-year sales bar.
4 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 71 months on average, so the names here are established.
- Launched, last 12 months
- 4
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 71 months
Products
Top Ammonium Sulfate products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 15, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Ammonium Sulfate 21-0-0 Fertilizer High Nitrogen for Rapid Plant Growth & Deep Green Color Ideal Soil Acidifier to Lower pH in Alkaline Soil 5 lb
- Price
- $17.46
- Rating
- 4.6/5
- Reviews
- 266
- Age
- 2y ago

Easy Peasy Plants Ammonium Sulfate - 21-0-0 24S Nutrient Plant Food Blend for DEEP Green Plants and Colorful Blooms - Great Fertilizer Soil Acidifier for Azaleas Blueberries Magnolia
- Price
- $19.01
- Rating
- 4.6/5
- Reviews
- 379
- Age
- 3y ago

Dark Matter 21-0-0 Ammonium Sulfate Fertilizer | High-Nitrogen Lawn Garden & Turf Fertilizer | Fast-Acting Small Prill Formula | 40lbs | Covers up to 13 333 sq ft |
- Price
- $59.56
- Rating
- 4.6/5
- Reviews
- 75
- Age
- 1y ago

CountryMax Ammonium Sulfate Fertilizer 21-0-0 10LB Bag High Nitrogen Lawn Fertilizer with Sulfur Plant Food for Grass Gardens Vegetables & Soil Care
- Price
- $25.83
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 2mo ago

Ammonium Sulfate - (NH4) 2SO4-1 Pound
- Price
- $9.63
- Rating
- 4.6/5
- Reviews
- 337
- Age
- 15y ago
Trending
estimated 90-day click momentum
Ammonium Sulfate 21-0-0 Fertilizer Water Soluble Ammonia Sulfate Fertilizer High Nitrogen 21-0-0 for Lawn Crops & Garden (1 LB)
- Price
- $9.96
- Rating
- 4.7/5
- Reviews
- 4
- Age
- 6mo ago

CountryMax Ammonium Sulfate Fertilizer 21-0-0 50LB Bag High Nitrogen Lawn Fertilizer with Sulfur Plant Food for Grass Gardens Vegetables & Soil Care
- Price
- $61.72
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 2mo ago

CountryMax Ammonium Sulfate Fertilizer 21-0-0 10LB Bag High Nitrogen Lawn Fertilizer with Sulfur Plant Food for Grass Gardens Vegetables & Soil Care
- Price
- $25.83
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 2mo ago

Ammonium Sulfate 21-0-0 Fertilizer Lawn Fertilizers to Lower pH Level in Alkaline SOI High Nitrogen for Rapid Plant Growth & Deep Green Color (1 lb)
- Price
- $10.07
- Rating
- 3.5/5
- Reviews
- 5
- Age
- 6mo ago

Easy Peasy Plants Ammonium Sulfate - 21-0-0 24S Nutrient Plant Food Blend for DEEP Green Plants and Colorful Blooms - Great Fertilizer Soil Acidifier for Azaleas Blueberries Magnolia
- Price
- $19.01
- Rating
- 4.6/5
- Reviews
- 379
- Age
- 3y ago
Newest
by launch date
CountryMax Ammonium Sulfate Fertilizer 21-0-0 10LB Bag High Nitrogen Lawn Fertilizer with Sulfur Plant Food for Grass Gardens Vegetables & Soil Care
- Price
- $25.83
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 2mo ago

CountryMax Ammonium Sulfate Fertilizer 21-0-0 50LB Bag High Nitrogen Lawn Fertilizer with Sulfur Plant Food for Grass Gardens Vegetables & Soil Care
- Price
- $61.72
- Rating
- 4.2/5
- Reviews
- 11
- Age
- 2mo ago

Ammonium Sulfate 21-0-0 Fertilizer Lawn Fertilizers to Lower pH Level in Alkaline SOI High Nitrogen for Rapid Plant Growth & Deep Green Color (1 lb)
- Price
- $10.07
- Rating
- 3.5/5
- Reviews
- 5
- Age
- 6mo ago

Ammonium Sulfate 21-0-0 Fertilizer Water Soluble Ammonia Sulfate Fertilizer High Nitrogen 21-0-0 for Lawn Crops & Garden (1 LB)
- Price
- $9.96
- Rating
- 4.7/5
- Reviews
- 4
- Age
- 6mo ago

Minimalist Ammonium Sulfate Ideal for Gardening and Soil Enrichment Packaged for Convenience in a Refillable Bag (1 Pound)
- Price
- $11.65
- Rating
- 4.8/5
- Reviews
- 30
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 54% of clicks. Leaders hold, but buyers still shop past them.
Brands
16 falling
Sellers
52
Est. top-5 brand share
61%
Top 20: 100%
Est. top-5 click share
54%
Top 20: 97%
Open market
33%
- The Grow Co19%
- CountryMax14%
- Easy Peasy10%
- Generic10%
- Alpha Chemicals9%
- Greenway Biotech, Inc.6%
Demand
Ammonium Sulfate search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 7.0×
Search terms
Top Ammonium Sulfate search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ammonium sulfate57K/yr
- ammonium sulfate fertilizer26K/yr
- ammonium sulfate 21-0-0 fertilizer13K/yr
- 21-0-0 fertilizer6K/yr
- ammonia sulfate5K/yr
- ammonia sulfate fertilizer5K/yr
- 21-0-0 ammonium sulfate fertilizer4K/yr
- ammonium sulfate 21-0-03K/yr
- ammonia sulfate fertilizer 21-0-03K/yr
Reviews and returns
What reviews say buyers love and hate about Ammonium Sulfate
We read the reviews and the return reasons for every product selling here.
“I cant my garden this summer”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Ammonium Sulfate questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









