---
title: "4-4-4 Organic Fertilizer — $58K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/4-4-4-organic-fertilizer"
last_updated: "2026-08-09T03:56:49.375Z"
locale: en
meta:
description: "Niche score 47/100 · $58K/yr market · 28K searches/yr · $25.57 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $58K/yr market · 28K searches/yr · $25.57 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "4-4-4 Organic Fertilizer — $58K/yr Amazon US Niche (2026) - Flapen"
---
# **4-4-4 organic fertilizer**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 14Growth 76Conversion 79Competition 4Returns 99Price range 95Avg price 95Brand share 0Review moat 75Quality gap 18
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$25.57**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$15.74–$46.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****7.9%**
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**
**Good****508.5**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$58K**
$58K/yr · 28K searches
**Competition**
**Bad****95%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
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 ~~](https://flapen.com/research/methodology)
## **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.
5K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/4-4-4-organic-fertilizer/trend)
## **Top 4-4-4 organic fertilizer search terms**
- **langbeinite**17K/yr+69.7%7.7% conv. - **langbeinite 0-0-22 fertilizer**7K/yr+48.9%8.8% conv. - **langbeinite fertilizer**3K/yr+24.7%8.0% conv. - **langbanite**2K/yr+225.0%0.5% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/4-4-4-organic-fertilizer/search-terms)
## **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.
0%15%$9K30%$17K45%$26K60%$35K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$24.40**4.7★1,726 rev](https://www.amazon.com/dp/B00VJN96LG) [2**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (5 pounds)**PowerGrow Systems**$15.85**4.8★362 rev](https://www.amazon.com/dp/B07S7Z3XLT) [3**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**$20.75**4.7★103 rev](https://www.amazon.com/dp/B0BZQBKSCN) [4**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**$15.74**4.5★136 rev](https://www.amazon.com/dp/B07SRW44HT) [5**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (20 pounds)**PowerGrow Systems**$46.75**4.8★362 rev](https://www.amazon.com/dp/B07S4F5GHH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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**$20.75**103 rev3y ago](https://www.amazon.com/dp/B0BZQBKSCN) [**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**$15.74**136 rev7y ago](https://www.amazon.com/dp/B07SRW44HT) [**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (5 pounds)**PowerGrow Systems**$15.85**362 rev7y ago](https://www.amazon.com/dp/B07S7Z3XLT) [**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (20 pounds)**PowerGrow Systems**$46.75**362 rev7y ago](https://www.amazon.com/dp/B07S4F5GHH) [**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (10 pounds)**PowerGrow Systems**$29.91**362 rev7y ago](https://www.amazon.com/dp/B07S6ZXKTQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (20 pounds)**PowerGrow Systems**$46.75**4.8★**▲ 38%**](https://www.amazon.com/dp/B07S4F5GHH) [**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**$20.75**4.7★**▲ 27%**](https://www.amazon.com/dp/B0BZQBKSCN) [**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (10 pounds)**PowerGrow Systems**$29.91**4.8★**▲ 22%**](https://www.amazon.com/dp/B07S6ZXKTQ) [**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**$15.74**4.5★**— 10%**](https://www.amazon.com/dp/B07SRW44HT) [**LANGBEINITE - Sulfate of Potash Magnesia (K-MAG) Organic Fertilizer 0-0-22 (5 pounds)**PowerGrow Systems**$15.85**4.8★**— 8%**](https://www.amazon.com/dp/B07S7Z3XLT)
**~~View all trending →~~**
## **What buyers say about 4-4-4 organic fertilizer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**58%
*“This garden soil supplement is amazing”*
**Value For Money**27%
*“Great value”*
**Safety Standards**4%
*“Safe to use”*
**Quality-Overall**3%
*“Product is great”*
### **What buyers complain about **
**Hard Feel**44%
*“Hard as a Rock”*
**Value For Money**17%
*“price a bit high”*
**Moist/Dry**11%
*“but the package I received had been exposed to moisture”*
### **Top return reasons **
**Contamination**31%
**Leak-Proof**15%
**Moist/Dry**15%
**Functionality-Overall**12%
**Advertised Vs Actual Product**8%
**Value For Money**8%
**Size-Overall**8%
**Instructions/User Manual/Troubleshooting**4%
## **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.
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