---
title: "Gypsum for Soil — $300K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/gypsum-for-soil"
last_updated: "2026-08-11T00:06:01.261Z"
locale: en
meta:
description: "Niche score 58/100 · $300K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 58/100 · $300K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Gypsum for Soil — $300K/yr Amazon US Niche (2026) - Flapen"
---
# **gypsum for soil**
**Worth a look**
Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 51Growth 59Conversion 97Competition 21Returns 98Price range 83Avg price 95Brand share 38Review moat 76Quality gap 23
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$22.82**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.14–$52.06**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****472.54**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+34.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Good****$300K**
$300K/yr · 87K searches
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, gypsum for soil is a $300K/yr Amazon United States market (87K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Worth a look — 58/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **gypsum for soil market data**
- **Units sold / yr**
- **10K–13K**
- avg 500–750/product
- **Revenue / yr**
- **$228K–$285K**
- units × avg price
- **Conversion rate**
- **15.1%**
- **Avg BSR**
- **#820**
- **Page quality**
- **0%**
- **Prime**
- **77%**
- **Sponsored**
- **69%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **69 months**
- **Avg seller age**
- **156 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **—flat
**Sellers**
**67**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**11%**
- Earth Science37% - Cz Garden Supply19% - Espoma10% - Down To Earth All Natural Fertilizers9% - Olympus Myco8% - ENCAP7% - Open — no brand owns it (3 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +34.8% search growth over the last 90 days.
5K4KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 5.9×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/gypsum-for-soil/trend)
## **Top gypsum for soil search terms**
- **gypsum for soil**67K/yr+28.8%11.8% conv. - **gypsum for gardening**12K/yr+61.8%11.9% conv. - **garden gypsum**5K/yr+55.6%10.4% conv. - **gypsum powder for soil**3K/yr+19.1%8.4% conv. - **gypsum for lawns**1K/yr+69.0%7.9% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/gypsum-for-soil/search-terms)
## **Top gypsum for soil 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%10%$30K20%$60K30%$90K40%$120K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Earth Science Fast Acting Gypsum Granules5 lb Soil Conditioner Adds Calcium Repairs Salt Damage & Root Growth with Nutri-Bond Runoff Reduction Technology**Earth Science**$21.93**4.5★543 rev](https://www.amazon.com/dp/B0BS3S3QCP) [2**Organic Gypsum Powder 5LB - Made in USA - OMRI Listed - Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns Plants Mushroom Cultivation. Calcium & Sulfur. Cures Blossom End Rot**Cz Garden Supply**$15.95**4.7★453 rev](https://www.amazon.com/dp/B09RQDB5H1) [3**Down To Earth All Natural Fertilizers Organic Prilled Garden Gypsum - Calcium Sulfate Loosens Clay Soil Greens Grade Mini Granules 5 lb**Down To Earth All Natural Fertilizers**$19.24**4.8★1,138 rev](https://www.amazon.com/dp/B07N2Y5NHM) [4**Earth Science Fast Acting Gypsum (25 lb.)**ENCAP**$39.11**4.4★332 rev](https://www.amazon.com/dp/B087V46QJF) [5**Olympus Myco 97% Pure Gypsum Powder 1 lb High Solubility Calcium Sulfate Dihydrate for Soil Gardens Lawns and Mushroom Substrate**Olympus Myco**$9.70**4.7★708 rev](https://www.amazon.com/dp/B0C5K2SSP1)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Gypsum for Soil - Calcium for Plants - Gypsum Fertilizer for Gardening Lawn & Vegetables - Calcium for Garden (8 oz - 0.5 lb.)**GARDENWISE**$8.14**11 rev12mo ago](https://www.amazon.com/dp/B0FJ6MPD1L) [**Olympus Myco 97% Pure Gypsum Powder 5 lbs High Solubility Calcium Sulfate Dihydrate for Soil Gardens Lawns Soil Conditioner**Olympus Myco**$19.25**708 rev3y ago](https://www.amazon.com/dp/B0CBQRTQ31) [**Olympus Myco 97% Pure Gypsum Powder 1 lb High Solubility Calcium Sulfate Dihydrate for Soil Gardens Lawns and Mushroom Substrate**Olympus Myco**$9.70**708 rev3y ago](https://www.amazon.com/dp/B0C5K2SSP1) [**Earth Science Fast Acting Gypsum Granules5 lb Soil Conditioner Adds Calcium Repairs Salt Damage & Root Growth with Nutri-Bond Runoff Reduction Technology**Earth Science**$21.93**543 rev3y ago](https://www.amazon.com/dp/B0BS3S3QCP) [**(1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms Food Grade No Additives - Packaged in HEPA filtrated Enclosure for Sterility (1.0 lbs)**Mycology Basics**$11.80**497 rev3y ago](https://www.amazon.com/dp/B0BZJQNDHN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Organic Gypsum Powder 5LB - Made in USA - OMRI Listed - Calcium Sulfate Dihydrate - Garden Soil Amendment Fertilizer for Lawns Plants Mushroom Cultivation. Calcium & Sulfur. Cures Blossom End Rot**Cz Garden Supply**$15.95**4.7★**▲ 109%**](https://www.amazon.com/dp/B09RQDB5H1) [**Gypsum for Soil - Calcium for Plants - Gypsum Fertilizer for Gardening Lawn & Vegetables - Calcium for Garden (8 oz - 0.5 lb.)**GARDENWISE**$8.14**4.4★**▲ 72%**](https://www.amazon.com/dp/B0FJ6MPD1L) [**Olympus Myco 97% Pure Gypsum Powder 5 lbs High Solubility Calcium Sulfate Dihydrate for Soil Gardens Lawns Soil Conditioner**Olympus Myco**$19.25**4.7★**▲ 46%**](https://www.amazon.com/dp/B0CBQRTQ31) [**Greenway Biotech Gypsum Powder Calcium Sulfate to Improves Soil Drainage and Soil Water Relations- 100% Water Soluble Contains 97% Calcium Sulfate Dihydrate 22.5% Calcium and 18% Sulfur- 50 Pounds**Greenway Biotech, Inc.**$52.06**4.7★**▲ 39%**](https://www.amazon.com/dp/B06ZY21T25) [**(1.0-20.0 lbs) Mycology Basics - Bulk Ultra-Fine Lab Grade Gypsum for Mushrooms Food Grade No Additives - Packaged in HEPA filtrated Enclosure for Sterility (1.0 lbs)**Mycology Basics**$11.80**4.7★**▲ 13%**](https://www.amazon.com/dp/B0BZJQNDHN)
**~~View all trending →~~**
## **What buyers say about gypsum for soil**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**31%
*“Outstanding Gypsum Product”*
**Advertised Vs Actual Product**29%
*“Coverage was as predicted”*
**Plant Growth**21%
*“This works great when planting tomatoes”*
**Value For Money**8%
*“While much cheaper”*
**Ease Of Use**6%
*“Good product easy to use”*
**Pest/Insect Control**4%
*“Works great for fungus”*
### **What buyers complain about **
**Value For Money**22%
*“price gouge”*
**Smell**22%
*“Organic Doesnt Mean Smells Like Ass Just cause it's organic doesnt mean that the gypsum should smell like a dead fish”*
**Durability**22%
*“Breaks up the clay”*
**Instructions/User Manual/Troubleshooting**11%
*“Application directions don't make sense”*
**Size-Overall**11%
*“Small packages”*
**Functionality-Overall**4%
*“Reseeding was not working”*
### **Top return reasons **
**Value For Money**40%
**Size-Overall**16%
**Advertised Vs Actual Product**12%
**Leak-Proof**11%
**Functionality-Overall**5%
**Defective Material/Parts**4%
**Certifications**4%
**Material Quality**2%
**Ease Of Use**1%
**Eco Friendliness**1%
## **Common questions**
- **Is gypsum for soil profitable to sell on Amazon United States?**
- The niche generates $300K/yr across 13 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +34.8%. Flapen's verdict: Worth a look (58/100).
- **How competitive is the gypsum for soil niche?**
- 9 brands and 67 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in gypsum for soil?**
- Top complaints mined from reviews: Value For Money, Smell, Durability. The return rate is 0.4%.
- **When does demand for gypsum for soil peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 5.9× the quietest.
- **What does it cost to enter the gypsum for soil niche?**
- Listings span $8.14–$52.06; the average listing price is $22.82 (sweet spot $15–$100). The average incumbent carries 473 reviews — the moat a new listing must climb.
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