4-4-4 organic fertilizer
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Avg price
Incredible$25.57avg listing price — sweet spot $15–$100
Price range
Incredible$15.74–$46.75cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great7.9%search→purchase rate — share of searches ending in a sale
Growth
Great+62.5%90-day search growth — must beat 0% to launch
Review moat
Good508.5avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$58K$58K/yr · 28K searches
Competition
Bad95%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 4-4-4 organic fertilizer is a $58K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb–Mar. Verdict: Skip it — 47/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
4-4-4 organic fertilizer market data
- Units sold / yr
- 2K–3K
- avg 250–500/product
- Revenue / yr
- $51K–$64K
- units × avg price
- Conversion rate
- 7.9%
- Avg BSR
- #1,185
- Page quality
- 0%
- Prime
- 50%
- Sponsored
- 33%
- Out of stock
- 11.5%
- Avg brand age
- 65 months
- Avg seller age
- 161 days
Competition & brand share
The top 5 products capture 95% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 falling
Sellers
6
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
95%
Top 20: 100%
Open market
0%
- Down To Earth All Natural Fertilizers53%
- PowerGrow Systems31%
- Cz Garden Supply17%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +62.5% search growth over the last 90 days.Peak months: Feb, Mar · busiest ÷ quietest = 2.2×
Top 4-4-4 organic fertilizer search terms
- langbeinite17K/yr
- langbeinite 0-0-22 fertilizer7K/yr
- langbeinite fertilizer3K/yr
- langbanite2K/yr
Top 4-4-4 organic fertilizer products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Down To Earth All Natural Fertilizers Organic Langbeinite Potassium Magnesium Sulfate (K-Mag) Granular Plant Food 0-0-22 5 lb
Down To Earth All Natural Fertilizers$24.404.7★1,726 rev
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (5 pounds)
PowerGrow Systems$15.854.8★362 rev
Organic Langbeinite 0-0-22 Sul-Po-Mag - Made in USA - OMRI Listed - Soil Amendment for Indoor/Outdoor Plants & Flower Gardens. Water Soluble Potassium/Magnesium/Sulfur. 3LB Low Chlorine Fertilizer
Cz Garden Supply$20.754.7★103 rev
Down To Earth All Natural Fertilizers Organic Solution Grade Langbeinite - Professional Grade Potassium Magnesium Sulfate Powder 200 mesh for Liquid or Spray 0-0-21.5 1 lb
Down To Earth All Natural Fertilizers$15.744.5★136 rev
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (20 pounds)
PowerGrow Systems$46.754.8★362 rev
Newest
by launch dateOrganic Langbeinite 0-0-22 Sul-Po-Mag - Made in USA - OMRI Listed - Soil Amendment for Indoor/Outdoor Plants & Flower Gardens. Water Soluble Potassium/Magnesium/Sulfur. 3LB Low Chlorine Fertilizer
Cz Garden Supply$20.75103 rev
Down To Earth All Natural Fertilizers Organic Solution Grade Langbeinite - Professional Grade Potassium Magnesium Sulfate Powder 200 mesh for Liquid or Spray 0-0-21.5 1 lb
Down To Earth All Natural Fertilizers$15.74136 rev
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (5 pounds)
PowerGrow Systems$15.85362 rev
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (20 pounds)
PowerGrow Systems$46.75362 rev
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (10 pounds)
PowerGrow Systems$29.91362 rev
Trending
90-day click momentumLANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (20 pounds)
PowerGrow Systems$46.754.8★
Organic Langbeinite 0-0-22 Sul-Po-Mag - Made in USA - OMRI Listed - Soil Amendment for Indoor/Outdoor Plants & Flower Gardens. Water Soluble Potassium/Magnesium/Sulfur. 3LB Low Chlorine Fertilizer
Cz Garden Supply$20.754.7★
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (10 pounds)
PowerGrow Systems$29.914.8★
Down To Earth All Natural Fertilizers Organic Solution Grade Langbeinite - Professional Grade Potassium Magnesium Sulfate Powder 200 mesh for Liquid or Spray 0-0-21.5 1 lb
Down To Earth All Natural Fertilizers$15.744.5★
LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (5 pounds)
PowerGrow Systems$15.854.8★
What buyers say about 4-4-4 organic fertilizer
What buyers praise and complain about, mined from review topics.What buyers love
“This garden soil supplement is amazing”
“Great value”
“Safe to use”
“Product is great”
What buyers complain about
“Hard as a Rock”
“price a bit high”
“but the package I received had been exposed to moisture”
Top return reasons
Common questions
- Is 4-4-4 organic fertilizer profitable to sell on Amazon United States?
- The niche generates $58K/yr across 6 tracked products. 90-day search growth is +62.5%. Flapen's verdict: Skip it (47/100).
- How competitive is the 4-4-4 organic fertilizer niche?
- 3 brands and 6 sellers compete. The top 5 products take 95% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in 4-4-4 organic fertilizer?
- Top complaints mined from reviews: Hard Feel, Value For Money, Moist/Dry. The return rate is 0.1%.
- When does demand for 4-4-4 organic fertilizer peak?
- Demand peaks in Feb–Mar; the busiest month runs 2.2× the quietest.
- What does it cost to enter the 4-4-4 organic fertilizer niche?
- Listings span $15.74–$46.75; the average listing price is $25.57 (sweet spot $15–$100). The average incumbent carries 509 reviews — the moat a new listing must climb.