Black Rock
MaybeProducts sell for $26.71 on average, inside the sweet spot. But shoppers spend an estimated $181K a year here, so Black Rock is a Maybe.
- Flapen Score
- 61 / 100Top 28% of 8,839 Patio, Lawn & Garden niches · +5 vs the category median of 5661
- Market size
- $181K/yr171K searches / yr
- 90-day growth
- +57.7%search demand this quarter
- Competition
- 42%top-5 click share · 18 brands · 26 sellers
Flapen Score
Black Rock against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Black Rock is stronger. Inside it, weaker.
Market
The Black Rock market on Amazon at a glance
Shoppers on Amazon United States searched for Black Rock 171K times last year and spent an estimated $181K. The top 5 brands take 66% of clicks. Demand peaks in Apr–May–Jun. Flapen scores it 61 out of 100, a Maybe.
01 · Demand
An estimated 4.0% of those searches ended in a purchase.
Shoppers searched for this 171K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.0% of those searches ended in a purchase. Searches in the last 90 days moved +57.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $181K a year.
- Searches, last 12 months
- 171K
- Growth, 90 days vs prior 90
- +57.7%
- Conversion, latest week
- 4.0%
- Market size, estimated
- $181Ka year
- Peak month
- May2.3× the quietest month
- Top search term
- black rocks32K searches a year
02 · Price
A sale here is worth $26.71.
Listings sell for $26.71 on average, from $6.68 to $86.55. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 250 to 500 of them. At $26.71 that is $7K to $13K a year per listing.
- Average price
- $26.71inside the $15 to $100 sweet spot
- Price range
- $6.68–$86.55
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $7K–$13K
- Returns
- 2.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
91% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.9% of listings are out of stock. The average listing ranks #46 within Hardscaping Materials. It carries 1,709 reviews at 4.52 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 100%
- Out of stock, average day
- 0.9%
- Average rank
- #46in Hardscaping Materials
- Average rating
- 4.52 starsAmazon United States average 4.42 stars
- Average reviews
- 1,709per listing
- Listings tracked
- 33
04 · Newcomers
4 of last year's 6 launches cleared the first-year sales bar.
6 products launched here in the last 12 months. 4 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 45 months on average, so the names here are settling in.
- Launched, last 12 months
- 6
- Successful launches
- 4Amazon's first-year sales bar
- Average brand age
- 45 months
Products
Top Black Rock 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
FANTIAN 5 Pounds Black Natural Decorative River Pebbles 2-3 Inch Black Polished Decorative Pebbles for Garden Landscaping Home Dcor Outdoor Paving River Rocks Rocks for Painting
- Price
- $14.44
- Rating
- 4.5/5
- Reviews
- 701
- Age
- 5y ago

Black River Rocks - Large Polished Black Pebbles for Plants & Garden Decorative Stones 1-2 Inch 15 Pound
- Price
- $34.09
- Rating
- 4.6/5
- Reviews
- 374
- Age
- 4y ago

YISZM 2lbs Black Pebbles for Plants 1-2 Inch High Polished Natural River Rocks for Landscaping Decorative Stones Vase Filler Fish Tank Aquariums Garden Outdoor and Indoor DIY
- Price
- $9.45
- Rating
- 4.6/5
- Reviews
- 1,244
- Age
- 3y ago

GASPRO 15 lb Black River Rocks for Landscaping Polished Black Pebbles for Potted Plants & Vases Large 1-2 Inch Decorative Stones for Garden Beds Planters & Aquariums Decor
- Price
- $26.84
- Rating
- 4.6/5
- Reviews
- 1,004
- Age
- 8y ago

Mulctun 45LB Polished Black Pebbles 1/4 - 3/4 Small Black River Rocks for Landscaping Natural Gravel Smooth Decorative Stones Dressing for Vases Planters Garden Outdoor Indoor
- Price
- $69.63
- Rating
- 4.5/5
- Reviews
- 271
- Age
- 2y ago
Trending
estimated 90-day click momentum
Rahato 20lbs Black Rocks for Planters 3-4 Inch Decorative Rocks for Potted Plants Polished Garden Stones for Outdoor Landscaping Walkways Yard River Rocks for Flower Pots Vase
- Price
- $35.16
- Rating
- 4.5/5
- Reviews
- 41
- Age
- 4mo ago

Mengdewei 12 lbs Black River Rocks for Landscaping 2-3 Inch Polished Pebbles for Garden Decorative Stones for Plants Succulents Aquarium Fish Tank Outdoor Yard Walkways & Paving
- Price
- $25.19
- Rating
- 4.3/5
- Reviews
- 24
- Age
- 6mo ago

Pulovin 20 lbs Black Stones for Plants Indoor 3-4 Inch Decorative River Rocks for Plants Flower Pots Vase Polished Garden Stones for Outdoor Landscaping Walkways Yard
- Price
- $34.30
- Rating
- 4.2/5
- Reviews
- 71
- Age
- 7mo ago

Glofish Aquarium Gravel Solid Black 5-Pound Bag
- Price
- $8.89
- Rating
- 4.6/5
- Reviews
- 15,115
- Age
- 14y ago

GreatBuddy 15-lb Black River Rocks for Landscaping 1-2 Inches Black Polished Pebbles Decorative Rocks for Plants Indoor& Outdoor Garden Landscaping Aquariums Vases Potted Plants Home Decor
- Price
- $25.38
- Rating
- 4.6/5
- Reviews
- 205
- Age
- 1y ago
Newest
by launch date
Rahato 20lbs Black Rocks for Planters 3-4 Inch Decorative Rocks for Potted Plants Polished Garden Stones for Outdoor Landscaping Walkways Yard River Rocks for Flower Pots Vase
- Price
- $35.16
- Rating
- 4.5/5
- Reviews
- 41
- Age
- 4mo ago

Mengdewei 12 lbs Black River Rocks for Landscaping 2-3 Inch Polished Pebbles for Garden Decorative Stones for Plants Succulents Aquarium Fish Tank Outdoor Yard Walkways & Paving
- Price
- $25.19
- Rating
- 4.3/5
- Reviews
- 24
- Age
- 6mo ago

Pulovin 20 lbs Black Stones for Plants Indoor 3-4 Inch Decorative River Rocks for Plants Flower Pots Vase Polished Garden Stones for Outdoor Landscaping Walkways Yard
- Price
- $34.30
- Rating
- 4.2/5
- Reviews
- 71
- Age
- 7mo ago

16lb Black River Rocks 1-2 Inch Pebbles for Indoor Plants Natural Polished Aquarium Gravel Decorative Rocks for Outdoor Landscaping Succulent Garden Vases Fillers Bird Baths
- Price
- $24.65
- Rating
- 4.4/5
- Reviews
- 461
- Age
- 1y ago

NUPICK 3lb River Rocks for Plants Indoor 1/5 Inch Black Pebbles for Vases Fillers Decorative Pea Gravel for Fish Tank Natural Polished Stones for Succulent Bonsai Landscaping Bird Baths
- Price
- $9.85
- Rating
- 4.6/5
- Reviews
- 142
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 42% of clicks. Leaders hold, but buyers still shop past them.
Brands
18 falling
Sellers
26
Est. top-5 brand share
66%
Top 20: 100%
Est. top-5 click share
42%
Top 20: 89%
Open market
29%
- FANTIAN23%
- YISZM16%
- Mulctun11%
- TOPEMAI10%
- GASPRO7%
- NUPICK5%
Demand
Black Rock search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun · busiest ÷ quietest = 2.3×
Search terms
Top Black Rock search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- black rocks32K/yr
- black rocks for landscaping16K/yr
- black river rocks18K/yr
- black stones18K/yr
- black landscape rock9K/yr
- black rock14K/yr
- black pebbles13K/yr
- black rocks for planters11K/yr
- black river rocks for landscaping7K/yr
- black river rock5K/yr
Reviews and returns
What reviews say buyers love and hate about Black Rock
We read the reviews and the return reasons for every product selling here.
“The bag is very small”
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 Black Rock 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









