Worm Castings
a small market ($29K/yr) — Worm Castings doesn't clear our bar today.
Flapen Score
Is Worm Castings profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Worm Castings is a £29K/yr Amazon United Kingdom market (56K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Mar–Apr–May. Verdict: Skip it — 40/100.
Worm Castings: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved +1.9% over the last 90 days and 5.6% of searches end in a purchase.
£29K
revenue / yr
Who owns the niche?
The top 5 brands hold 92% of demand, so 8% of the market is open.
8%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 14 products
Top Worm Castings products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Growcery Worm Castings - Premium Fertiliser for Plants Superior Soil Improver UK and Rich Vermicompost for Enhanced Plant Health and Vigour Fertiliser for plants outdoor and indoor (1L)
- Price
- £6.68
- Rating
- 4.6/5
- Reviews
- 96
- Age
- 2y ago
Black Gold Worm Castings 100% Organic Microbe-Rich Fertiliser Improves Soil Retains Moisture & Boosts Growth For Houseplants Gardens & Lawns (5 Litre)
- Price
- £11.93
- Rating
- 4.1/5
- Reviews
- 43
- Age
- 10mo ago
Worm Castings Pure Natural Multipurpose Fertilizer for Indoor and Outdoor Plants Vermicompost TopSoil Builder Improver Plant & Root Growth Feed Fertiliser for Potting Germination NPK Nutrient
- Price
- £10.63
- Rating
- 4.5/5
- Reviews
- 463
- Age
- 5y ago
Baltic Worm Worm Castings 5 Liter - Pure Multipurpose Fertiliser Vermicompost - Natural Top Soil Builder and Improver Plant Feed for Potting Germination Growing
- Price
- £16.48
- Rating
- 4.6/5
- Reviews
- 1,245
- Age
- 9y ago
Plantalaya Worm Castings Organic Soil Booster & Natural Plant Food Premium Earthworm Casting Nutrient Rich Soil Improver (0.5 Litre)
- Price
- £5.86
- Rating
- 4.2/5
- Reviews
- 3
- Age
- 2mo ago
Trending
90-day click momentumPlantalaya Worm Castings Organic Soil Booster & Natural Plant Food Premium Earthworm Casting Nutrient Rich Soil Improver (0.5 Litre)
- Price
- £5.86
- Rating
- 4.2/5
- Reviews
- 3
- Age
- 2mo ago
Elixir Gardens | 100% Organic Worm Castings Vermi Compost/Fertiliser/Soil Improver | 2 Litres - 400 Litres Available | 6ltr Bag
- Price
- £8.20
- Rating
- 4.5/5
- Reviews
- 120
- Age
- 10y ago
Growcery Living Soil Mix with Mycorrhizal Fungi Worm Castings & Activated Biochar Bioactive Potting Soil for Houseplants & Garden Plants (1L)
- Price
- £6.62
- Rating
- 4.3/5
- Reviews
- 38
- Age
- 4mo ago
Baltic Worm Worm Castings 5 Liter - Pure Multipurpose Fertiliser Vermicompost - Natural Top Soil Builder and Improver Plant Feed for Potting Germination Growing
- Price
- £16.48
- Rating
- 4.6/5
- Reviews
- 1,245
- Age
- 9y ago
Black Gold Worm Castings 100% Organic Microbe-Rich Fertiliser Improves Soil Retains Moisture & Boosts Growth For Houseplants Gardens & Lawns (5 Litre)
- Price
- £11.93
- Rating
- 4.1/5
- Reviews
- 43
- Age
- 10mo ago
Newest
by launch datePlantalaya Worm Castings Organic Soil Booster & Natural Plant Food Premium Earthworm Casting Nutrient Rich Soil Improver (0.5 Litre)
- Price
- £5.86
- Rating
- 4.2/5
- Reviews
- 3
- Age
- 2mo ago
Growcery Living Soil Mix with Mycorrhizal Fungi Worm Castings & Activated Biochar Bioactive Potting Soil for Houseplants & Garden Plants (1L)
- Price
- £6.62
- Rating
- 4.3/5
- Reviews
- 38
- Age
- 4mo ago
Black Gold Worm Castings Bucket | 100% Worm Castings for Mixing or Topdressing | Pots Gardens & Raised Beds | Supports Microbial Activity & Root Health (10L)
- Price
- £13.29
- Rating
- 4.1/5
- Reviews
- 11
- Age
- 9mo ago
Black Gold Worm Castings 100% Organic Microbe-Rich Fertiliser Improves Soil Retains Moisture & Boosts Growth For Houseplants Gardens & Lawns (5 Litre)
- Price
- £11.93
- Rating
- 4.1/5
- Reviews
- 43
- Age
- 10mo ago
Growcery Worm Castings - Premium Fertiliser for Plants Superior Soil Improver UK and Rich Vermicompost for Enhanced Plant Health and Vigour Fertiliser for plants outdoor and indoor (1L)
- Price
- £6.68
- Rating
- 4.6/5
- Reviews
- 96
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.
Brands
7 flat
Sellers
7
Top-5 brand share
92%
Top 20: 100%
Top-5 click share
68%
Top 20: 100%
Open market
3%
- Growcery32%
- Baltic Worm23%
- Invigortex21%
- Generic10%
- R&R SHOP6%
- Elixir Gardens5%
- Open — no brand owns it (1 brand, 3%)
Worm Castings demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Mar, Apr, May · busiest ÷ quietest = 3.1×
Top Worm Castings search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- worm castings42K/yr
- worm castings for plants11K/yr
- vermicompost3K/yr
What reviews say buyers love and hate about Worm Castings
What buyers mention most, as a share of all reviews.
What buyers love
93% of reviews“good quality”
“They are growing healthy”
“Good value for money”
“does the job”
“Something really good is that doesn't smell compare with other similar products”
What buyers complain about
86% of reviews“Its to small”
“Expensive”
“It was too stressful to deal with it so I just threw away the leftover after a couple of use”
“yellow balls rubbish quality”
Worm Castings return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
29%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Worm Castings questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
