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65

compost

Launch it

A $2.9M/yr market growing +27.6% this quarter with returns at 0.0% — clears our launch bar.

Market size 96Growth 55Conversion 92Competition 63Returns 100Price range 46Avg price 31Brand share 39Review moat 25Quality gap 45

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Market size

Incredible£2.9M

£2.9M/yr · 2.7M searches

Conversion

Great11.2%

search→purchase rate — share of searches ending in a sale

Competition

Good47%

top-5 click share — leaders hold, buyers still browse

Growth

Good+27.6%

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

Price range

Okay£3.97–£24.47

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay82%

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

Avg price

Okay£9.78

avg listing price — sweet spot $15–$100

Review moat

Bad4,564.18

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United Kingdom niche tracking, compost is a £2.9M/yr Amazon United Kingdom market (2.7M searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Launch it — 65/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

compost market data

Units sold / yr
300K–400K
avg 10,000–12,500/product
Revenue / yr
£2.9M–£3.9M
units × avg price
Conversion rate
11.2%
Avg BSR
#11
Page quality
0%
Prime
46%
Sponsored
54%
Out of stock
1.5%
Avg brand age
50 months
Avg seller age
175 days

Competition & brand share

The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

81

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

47%

Top 20: 91%

Open market

14%

  • GROWMOOR46%
  • Pelle & Sol13%
  • Miracle-Gro9%
  • Hardys9%
  • Munnie4%
  • ecoblaze4%
  • Open — no brand owns it (6 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +27.6% search growth over the last 90 days.
125K75KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 10.8×

Top compost search terms

  • compost1.1M/yr
  • compost for outdoor plants455K/yr
  • soil334K/yr
  • soil for pots plants outdoor128K/yr
  • potting compost140K/yr
  • multi purpose compost108K/yr
  • peat free compost74K/yr
  • potting soil81K/yr
  • garden compost49K/yr
  • compost for vegetables growing26K/yr
All search terms

Top compost 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%4%£118K8%£235K12%£353K16%£471K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about compost

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

What buyers love

Quality-Overall32%

“Affordable quality”

Plant Growth22%

“Grow well”

Value For Money18%

“Good Price”

Advertised Vs Actual Product6%

“As described”

Ease Of Use5%

“Easy to use”

Size-Overall2%

“The bag size was good”

Eco Friendliness2%

“Environmentally beneficial”

Moist/Dry2%

“Hold moisture it great”

Soft Feel1%

“It's very fluffy”

Weight Light1%

“this is a very lightweight compost”

What buyers complain about

Quality-Overall13%

“Bad quality”

Plant Growth12%

“Seedlings will just not grow in it”

Moist/Dry8%

“Too dry”

Value For Money8%

“It is a little expensive”

Advertised Vs Actual Product6%

“Misleading description”

Water Resistance6%

“absolutely rubbish it's actually more or less waterproof”

Size-Overall4%

“Too small”

Absorbency3%

“Not absorbent”

Wood Quality2%

“contains wood chipping”

Contamination2%

“Infested”

Top return reasons

Size-Overall31%
Advertised Vs Actual Product16%
Value For Money14%
Plant Growth6%
Leak-Proof6%
Quality-Overall4%
Contamination4%
Moist/Dry3%
Weight Heavy2%
Smell1%

Common questions

Is compost profitable to sell on Amazon United Kingdom?
The niche generates £2.9M/yr across 28 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +27.6%. Flapen's verdict: Launch it (65/100).
How competitive is the compost niche?
12 brands and 81 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in compost?
Top complaints mined from reviews: Quality-Overall, Plant Growth, Moist/Dry. The return rate is 0.0%.
When does demand for compost peak?
Demand peaks in Mar–Apr–May–Jun; the busiest month runs 10.8× the quietest.
What does it cost to enter the compost niche?
Listings span £3.97–£24.47; the average listing price is £9.78 (sweet spot $15–$100). The average incumbent carries 4,564 reviews — the moat a new listing must climb.