Calcium for Plants
MaybeSearch demand grew +222.2% this quarter. But shoppers spend an estimated $65K a year here, so Calcium for Plants is a Maybe.
- Flapen Score
- 53 / 100Ranks 5,174 of 8,839 Patio, Lawn & Garden niches · −3 vs the category median of 5653
- Market size
- $65K/yr28K searches / yr
- 90-day growth
- +222.2%search demand this quarter
- Competition
- 77%top-5 click share · 11 brands · 58 sellers
Flapen Score
Calcium for Plants against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Calcium for Plants is stronger. Inside it, weaker.
Market
The Calcium for Plants market on Amazon at a glance
Shoppers on Amazon United States searched for Calcium for Plants 28K times last year and spent an estimated $65K. The top 5 brands take 86% of clicks. Demand peaks in May–Jun–Jul–Aug. Flapen scores it 53 out of 100, a Maybe.
01 · Demand
An estimated 15.1% of those searches ended in a purchase.
Shoppers searched for this 28K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 15.1% of those searches ended in a purchase. Searches in the last 90 days moved +222.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $65K a year.
- Searches, last 12 months
- 28K
- Growth, 90 days vs prior 90
- +222.2%
- Conversion, latest week
- 15.1%
- Market size, estimated
- $65Ka year
- Peak month
- July10.7× the quietest month
- Top search term
- calcium for plants22K searches a year
02 · Price
A sale here is worth $15.03.
Listings sell for $15.03 on average, from $9.96 to $19.85. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 100 to 250 of them. At $15.03 that is $2K to $4K a year per listing.
- Average price
- $15.03inside the $15 to $100 sweet spot
- Price range
- $9.96–$19.85
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–3K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$4K
- Returns
- 0.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
64% of listings pay for placement with sponsored ads. 93% ship with Prime. On an average day, 3.7% of listings are out of stock. The average listing ranks #493 within Soils, Mulches & Planting Media. It carries 3,307 reviews at 4.64 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 64%
- Prime listings
- 93%
- Out of stock, average day
- 3.7%
- Average rank
- #493in Soils, Mulches & Planting Media
- Average rating
- 4.64 starsAmazon United States average 4.42 stars
- Average reviews
- 3,307per listing
- Listings tracked
- 14
04 · Newcomers
2 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 87 months on average, so the names here are established.
- Launched, last 12 months
- 2
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 87 months
Products
Top Calcium for Plants products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 15, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Calcium for Plants Liquid Calcium Supplement for Stronger Growth Healthier New Leaves & Reduced Deficiencies 8 oz
- Price
- $11.26
- Rating
- 4.4/5
- Reviews
- 151
- Age
- 2y ago

Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer Quart (32 oz)
- Price
- $17.40
- Rating
- 4.7/5
- Reviews
- 6,860
- Age
- 9y ago

Bonide Rot-Stop Tomato Blossom End Rot 16 oz Concentrated Liquid Garden Fertilizer for Calcium Deficiency Indoors & Outdoors
- Price
- $10.37
- Rating
- 4.5/5
- Reviews
- 5,165
- Age
- 18y 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
- Price
- $19.40
- Rating
- 4.7/5
- Reviews
- 562
- Age
- 2y ago

Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer 1/2 Pint (8 oz)
- Price
- $11.47
- Rating
- 4.7/5
- Reviews
- 6,860
- Age
- 3y ago
Trending
estimated 90-day click momentum
16oz Cal Mag for Plants - Makes 96 Gallons of Calmag for Plants Fertilizer Liquid Cal-Mag for Plants Indoors & Outdoors Ideal Calmag Supplement with 3-0-0 NPK - Corrects Common Plant Deficiencies
- Price
- $12.96
- Rating
- 4.7/5
- Reviews
- 44
- Age
- 1y ago

Athena Blended CaMg | Cal Mag for Plants | Calcium Magnesium Fertilizer | Calmag for Hydroponics Coco & Soil | NPK 2-0-0 | 32 Ounce
- Price
- $16.27
- Rating
- 4.8/5
- Reviews
- 165
- Age
- 6mo ago

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
- Price
- $9.96
- Rating
- 4.4/5
- Reviews
- 25
- Age
- 7mo ago

Oyster Shell Flour 5LB Made in USA - OMRI Listed - Soil Amendment Fertilizer for Plants & Flower Gardens. High Calcium Supplement for Chickens Reptiles Worm Compost Bins Mushroom Cultivation.
- Price
- $19.85
- Rating
- 4.8/5
- Reviews
- 205
- Age
- 3y ago

Calcium for Plants Liquid Calcium Supplement for Stronger Growth Healthier New Leaves & Reduced Deficiencies 8 oz
- Price
- $11.26
- Rating
- 4.4/5
- Reviews
- 151
- Age
- 2y ago
Newest
by launch date
Athena Blended CaMg | Cal Mag for Plants | Calcium Magnesium Fertilizer | Calmag for Hydroponics Coco & Soil | NPK 2-0-0 | 32 Ounce
- Price
- $16.27
- Rating
- 4.8/5
- Reviews
- 165
- Age
- 6mo ago

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
- Price
- $9.96
- Rating
- 4.4/5
- Reviews
- 25
- Age
- 7mo ago

Calcium Nitrate Fertilizer Liquid Fertilizer Supplement for Fast Leaf Growth Stronger Cell Wall Development & Prevents Blossom End Rot 8 oz
- Price
- $11.86
- Rating
- 4.6/5
- Reviews
- 152
- Age
- 1y ago

16oz Cal Mag for Plants - Makes 96 Gallons of Calmag for Plants Fertilizer Liquid Cal-Mag for Plants Indoors & Outdoors Ideal Calmag Supplement with 3-0-0 NPK - Corrects Common Plant Deficiencies
- Price
- $12.96
- Rating
- 4.7/5
- Reviews
- 44
- Age
- 1y ago

Calcium for Plants Liquid Calcium Supplement for Stronger Growth Healthier New Leaves & Reduced Deficiencies 8 oz
- Price
- $11.26
- Rating
- 4.4/5
- Reviews
- 151
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 77% of clicks. A locked shelf that new listings rarely crack.
Brands
11 falling
Sellers
58
Est. top-5 brand share
86%
Top 20: 100%
Est. top-5 click share
77%
Top 20: 100%
Open market
10%
- TPS NUTRIENTS27%
- Bloom City24%
- Bonide18%
- Cz Garden Supply13%
- Southern Ag5%
- FOVGOTAN4%
- Open — no brand owns it (5 brands, 10%)
Demand
Calcium for Plants search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 10.7×
Reviews and returns
What reviews say buyers love and hate about Calcium for Plants
We read the reviews and the return reasons for every product selling here.
“it didnt do much for my plants so use that for your own judgment”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Calcium for Plants questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









