---
title: "Calcium Nitrate — $286K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/calcium-nitrate"
last_updated: "2026-08-05T21:28:56.308Z"
locale: en
meta:
description: "Niche score 62/100 · $286K/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 62/100 · $286K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Calcium Nitrate — $286K/yr Amazon US Niche (2026) - Flapen"
---
# **calcium nitrate**
**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 50Growth 96Conversion 96Competition 18Returns 98Price range 85Avg price 95Brand share 39Review moat 50Quality gap 24
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+130.5%**
90-day search growth — must beat 0% to launch
**Conversion**
**Incredible****14.0%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$23.97**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.64–$59.53**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$286K**
$286K/yr · 85K searches
**Review moat**
**Okay****1,505.15**
avg incumbent reviews — the moat a new listing must climb
**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****79%**
top-5 click share — a locked-up shelf
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, calcium nitrate is a $286K/yr Amazon United States market (85K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 62/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **calcium nitrate market data**
- **Units sold / yr**
- **8K–10K**
- avg 500–750/product
- **Revenue / yr**
- **$192K–$240K**
- units × avg price
- **Conversion rate**
- **14.0%**
- **Avg BSR**
- **#921**
- **Page quality**
- **0%**
- **Prime**
- **62%**
- **Sponsored**
- **62%**
- **Out of stock**
- **8.2%**
- **Avg brand age**
- **88 months**
- **Avg seller age**
- **161 days**
## **Competition & brand share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▼falling
**Sellers**
**44**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**12%**
- TPS NUTRIENTS20% - Cz Garden Supply20% - Southern Ag19% - PowerGrow Systems14% - FOVGOTAN8% - Greenleaf Nutrients6% - Open — no brand owns it (6 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +130.5% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 5.1×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/calcium-nitrate/trend)
## **Top calcium nitrate search terms**
- **calcium nitrate**42K/yr+110.1%9.4% conv. - **calcium nitrate fertilizer**25K/yr+116.2%11.0% conv. - **calcium nitrate for tomato plants**6K/yr>1,000%14.4% conv. - **calcium nitrate 15.5-0-0 fertilizer**5K/yr+31.5%13.4% conv. - **calcium nitrate for plants**4K/yr+36.9%9.6% conv. - **calcium nitrate for tomatoes**4K/yr+912.6%11.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/calcium-nitrate/search-terms)
## **Top calcium nitrate 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%$29K20%$57K30%$86K40%$114K1101001K10K 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**Calcium Nitrate Fertilizer Liquid Fertilizer Supplement for Fast Leaf Growth Stronger Cell Wall Development & Prevents Blossom End Rot 8 oz**TPS NUTRIENTS**$11.86**4.6★152 rev](https://www.amazon.com/dp/B0DQTNRXBG) [2**Calcium Nitrate 15.5-0-0 Fertilizer - Made in USA - 5LB Greenhouse Grade Plant Food for Hydroponics Plants & Gardens Fruit Vegetables. Blossom End Rot Tomatoes**Cz Garden Supply**$19.40**4.7★562 rev](https://www.amazon.com/dp/B0CF7RYDML) [3**Southern Ag Calcium Nitrate - 5 Pound Bag**Southern Ag**$17.19**4.6★1,501 rev](https://www.amazon.com/dp/B0013LQJKU) [4**Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing (5 POUNDS)**PowerGrow Systems**$16.19**4.7★2,013 rev](https://www.amazon.com/dp/B071YS779G) [5**1LB Calcium Nitrate Fertilizer 15.5-0-0 Nitrogen Fertilizer with Calcium Indoor Plant Fertilizer Plant Food for Houseplants Lawn Vegetable Trees Boost Stem & Leaf Growth Improves Root Health**FOVGOTAN**$9.96**4.4★25 rev](https://www.amazon.com/dp/B0G4C658BT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**1LB Calcium Nitrate Fertilizer 15.5-0-0 Nitrogen Fertilizer with Calcium Indoor Plant Fertilizer Plant Food for Houseplants Lawn Vegetable Trees Boost Stem & Leaf Growth Improves Root Health**FOVGOTAN**$9.96**25 rev7mo ago](https://www.amazon.com/dp/B0G4C658BT) [**INTOMYTH Calcium Nitrate 15.5-0-0 Fertilizer (1 lb) - Horticultural Grade Calcium Nitrate Soluble Plant Food for Hydroponics Garden Plants Fruit Vegetables Tomatoes**INTOMYTH**$9.72**17 rev8mo ago](https://www.amazon.com/dp/B0FXWR4X6D) [**Calcium Nitrate Fertilizer Liquid Fertilizer Supplement for Fast Leaf Growth Stronger Cell Wall Development & Prevents Blossom End Rot 8 oz**TPS NUTRIENTS**$11.86**152 rev1y ago](https://www.amazon.com/dp/B0DQTNRXBG) [**Calcium Nitrate 15.5-0-0 Mega Crop 2 Part B Hydroponic Soil Fertilizer for Plants Granule**Greenleaf Nutrients**$8.64**212 rev2y ago](https://www.amazon.com/dp/B0D3YWHCPD) [**Calcium Nitrate 15.5-0-0 Fertilizer - Made in USA - 5LB Greenhouse Grade Plant Food for Hydroponics Plants & Gardens Fruit Vegetables. Blossom End Rot Tomatoes**Cz Garden Supply**$19.40**562 rev2y ago](https://www.amazon.com/dp/B0CF7RYDML)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Acton Calcium Nitrate 15.5-0-0 (25 LB)**Acton Fertilizers**$52.36**5.0★**▲ 92%**](https://www.amazon.com/dp/B0GVPRH2WV) [**1LB Calcium Nitrate Fertilizer 15.5-0-0 Nitrogen Fertilizer with Calcium Indoor Plant Fertilizer Plant Food for Houseplants Lawn Vegetable Trees Boost Stem & Leaf Growth Improves Root Health**FOVGOTAN**$9.96**4.4★**▲ 47%**](https://www.amazon.com/dp/B0G4C658BT) [**Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer Quart (32 oz)**Bloom City**$17.40**4.7★**▲ 38%**](https://www.amazon.com/dp/B073ZNQWCM) [**INTOMYTH Calcium Nitrate 15.5-0-0 Fertilizer (1 lb) - Horticultural Grade Calcium Nitrate Soluble Plant Food for Hydroponics Garden Plants Fruit Vegetables Tomatoes**INTOMYTH**$9.72**4.2★**▲ 36%**](https://www.amazon.com/dp/B0FXWR4X6D) [**Calcium Nitrate Fertilizer Liquid Fertilizer Supplement for Fast Leaf Growth Stronger Cell Wall Development & Prevents Blossom End Rot 8 oz**TPS NUTRIENTS**$11.86**4.6★**▲ 18%**](https://www.amazon.com/dp/B0DQTNRXBG)
**~~View all trending →~~**
## **What buyers say about calcium nitrate**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**38%
*“promotes strong growth”*
**Advertised Vs Actual Product**18%
*“As advertised”*
**Quality-Overall**14%
*“Reliable quality and consistent results”*
**Value For Money**9%
*“great value of product”*
**Ease Of Use**8%
*“Easy to use”*
**Maintenance And Repair**3%
*“Great, quickly fix”*
**Durability**3%
*“This stuff is strong, reliable and never runs out”*
**Portability**1%
**Weight Light**1%
*“Light and packable”*
**Instructions/User Manual/Troubleshooting**1%
*“Very effective, just follow instructions”*
### **What buyers complain about **
**Plant Growth**36%
*“Tomato rot stop”*
**Value For Money**21%
*“No a good value for the price”*
**Functionality-Overall**14%
*“Didnt work for me”*
**Size-Overall**7%
*“It's a rather large bottle”*
**Quality-Overall**7%
*“garbage that doesnt work”*
### **Top return reasons **
**Advertised Vs Actual Product**22%
**Leak-Proof**20%
**Value For Money**18%
**Defective Material/Parts**6%
**Instructions/User Manual/Troubleshooting**6%
**Size-Overall**6%
**Functionality-Overall**5%
**Ease Of Use**2%
**Product Condition**2%
**Moist/Dry**2%
## **Common questions**
- **Is calcium nitrate profitable to sell on Amazon United States?**
- The niche generates $286K/yr across 13 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +130.5%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the calcium nitrate niche?**
- 12 brands and 44 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in calcium nitrate?**
- Top complaints mined from reviews: Plant Growth, Value For Money, Functionality-Overall. The return rate is 0.4%.
- **When does demand for calcium nitrate peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 5.1× the quietest.
- **What does it cost to enter the calcium nitrate niche?**
- Listings span $8.64–$59.53; the average listing price is $23.97 (sweet spot $15–$100). The average incumbent carries 1,505 reviews — the moat a new listing must climb.
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