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.

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.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Growth

Incredible+130.5%

90-day search growth — must beat 0% to launch

Conversion

Incredible14.0%

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

Okay1,505.15

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay82%

top-5 brand share — brands hold most of the demand

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad79%

top-5 click share — a locked-up shelf

Signals Trending Low Review Barrier

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

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

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.

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 5.1×

Open Trend

Top calcium nitrate search terms

calcium nitrate42K/yr +110.1%9.4% conv.
calcium nitrate fertilizer25K/yr +116.2%11.0% conv.
calcium nitrate for tomato plants6K/yr >1,000%14.4% conv.
calcium nitrate 15.5-0-0 fertilizer5K/yr +31.5%13.4% conv.
calcium nitrate for plants4K/yr +36.9%9.6% conv.
calcium nitrate for tomatoes4K/yr +912.6%11.2% conv.

All 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.

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

Calcium Nitrate Fertilizer Liquid Fertilizer Supplement for Fast Leaf Growth Stronger Cell Wall Development & Prevents Blossom End Rot 8 oz

TPS NUTRIENTS$11.864.6★152 rev

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$19.404.7★562 rev

Southern Ag Calcium Nitrate - 5 Pound Bag

Southern Ag$17.194.6★1,501 rev

Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing (5 POUNDS)

PowerGrow Systems$16.194.7★2,013 rev

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$9.964.4★25 rev

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$9.9625 rev

7mo ago

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$9.7217 rev

8mo ago

Calcium Nitrate Fertilizer Liquid Fertilizer Supplement for Fast Leaf Growth Stronger Cell Wall Development & Prevents Blossom End Rot 8 oz

TPS NUTRIENTS$11.86152 rev

1y ago

Calcium Nitrate 15.5-0-0 Mega Crop 2 Part B Hydroponic Soil Fertilizer for Plants Granule

Greenleaf Nutrients$8.64212 rev

2y ago

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$19.40562 rev

2y ago

What buyers say about calcium nitrate

What buyers praise and complain about, mined from review topics.

What buyers love

Plant Growth38%

“promotes strong growth”

Advertised Vs Actual Product18%

“As advertised”

Quality-Overall14%

“Reliable quality and consistent results”

Value For Money9%

“great value of product”

Ease Of Use8%

“Easy to use”

Maintenance And Repair3%

“Great, quickly fix”

Durability3%

“This stuff is strong, reliable and never runs out”

Portability1%

Weight Light1%

“Light and packable”

Instructions/User Manual/Troubleshooting1%

“Very effective, just follow instructions”

What buyers complain about

Plant Growth36%

“Tomato rot stop”

Value For Money21%

“No a good value for the price”

Functionality-Overall14%

“Didnt work for me”

Size-Overall7%

“It's a rather large bottle”

Quality-Overall7%

“garbage that doesnt work”

Top return reasons

Advertised Vs Actual Product22%

Leak-Proof20%

Value For Money18%

Defective Material/Parts6%

Instructions/User Manual/Troubleshooting6%

Size-Overall6%

Functionality-Overall5%

Ease Of Use2%

Product Condition2%

Moist/Dry2%

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.