Ammonium Sulfate
Ammonium Sulfate shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 13% of 8,839 Patio, Lawn & Garden niches · +10 vs the category median of 56
Is Ammonium Sulfate profitable on Amazon?
According to Flapen's Amazon United States niche tracking, Ammonium Sulfate is a $177K/yr Amazon United States market (122K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Mar–Apr–May–Jun–Jul. Verdict: Worth a look — 66/100.
Ammonium Sulfate: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +87.4% over the last 90 days and 4.8% of searches end in a purchase.
$177K
revenue / yr
Who owns the niche?
The top 5 brands hold 61% of demand, so 39% of the market is open.
39%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 23 products
Top Ammonium Sulfate products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 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
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 dateCountryMax 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: brands, sellers & click share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
Brands
16 falling
Sellers
52
Top-5 brand share
61%
Top 20: 100%
Top-5 click share
54%
Top 20: 97%
Open market
33%
- The Grow Co19%
- CountryMax14%
- Easy Peasy10%
- Generic10%
- Alpha Chemicals9%
- Greenway Biotech, Inc.6%
Ammonium Sulfate demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 7.0×
Top Ammonium Sulfate search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about Ammonium Sulfate
What buyers mention most, as a share of all reviews.
What buyers love
89% of reviews“which is important for plant health”
“Quality remains consistent across applications”
“Easy to use”
“Good value”
“Worked as advertised”
What buyers complain about
77% of reviews“I cant my garden this summer”
“I believe that there was a quality control concern with this batch”
“Not a good price for the amount”
“Doesn't Work”
“in 3 days youll see a color green that you didnt think was possible”
Ammonium Sulfate return rate & reasons
Why buyers send it back, as a share of all return requests.
0.4%
Return rate
37%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Ammonium Sulfate questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
