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50

seed compost

Worth a look

Shows low returns (0.0%), but soft demand (-73.2% this quarter) keeps it on the watch list.

Market size 51Growth 0Conversion 96Competition 42Returns 100Price range 16Avg price 24Brand share 56Review moat 59Quality gap 55

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible14.1%

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

Review moat

Good1,141.71

avg incumbent reviews — the moat a new listing must climb

Brand share

Good71%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good£299K

£299K/yr · 242K searches

Competition

Okay60%

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

Avg price

Bad£8.78

avg listing price — sweet spot $15–$100

Price range

Bad£5.94–£16.75

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

Growth

Bad-73.2%

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

According to Flapen's Amazon United Kingdom niche tracking, seed compost is a £299K/yr Amazon United Kingdom market (242K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Jan–Feb–Mar–Apr. Verdict: Worth a look — 50/100.

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

seed compost market data

Units sold / yr
30K–40K
avg 2,500–3,000/product
Revenue / yr
£263K–£351K
units × avg price
Conversion rate
14.1%
Avg BSR
#143
Page quality
0%
Prime
47%
Sponsored
65%
Out of stock
0.0%
Avg brand age
45 months
Avg seller age
180 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 flat

Sellers

38

Top-5 brand share

71%

Top 20: 100%

Top-5 click share

60%

Top 20: 100%

Open market

20%

  • Westland21%
  • Mr Fothergill's20%
  • GOTVUGE11%
  • Gro-Sure10%
  • CUQOO9%
  • Miracle-Gro9%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -73.2% search growth over the last 90 days.
15K10KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Mar, Apr · busiest ÷ quietest = 19.1×

Top seed compost search terms

  • seed compost116K/yr
  • seedling compost26K/yr
  • compost for seeds and seedlings18K/yr
  • seed compost uk19K/yr
  • seed sowing compost9K/yr
  • seed and cutting compost5K/yr
  • seed compost small bag6K/yr
  • seed soil6K/yr
  • cutting compost3K/yr
  • seed starting soil5K/yr
All search terms

Top seed 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%10%£30K20%£60K30%£90K40%£119K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about seed compost

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

What buyers love

Quality-Overall27%

“Its reasonable quality”

Plant Growth25%

“So excellent germination”

Value For Money17%

“Great value for money”

Advertised Vs Actual Product9%

“As advertised”

Ease Of Use5%

“Easy to use”

Moist/Dry3%

“Hold moisture it great”

Weight Light1%

“Lightweight”

Size-Overall1%

“Great size”

Eco Friendliness1%

“good allround compost”

Soft Feel1%

“Lovely soft compost”

What buyers complain about

Plant Growth21%

“Nothing grew”

Quality-Overall14%

“some rubbish lower quality brand”

Value For Money8%

“They may be cheap”

Moist/Dry7%

“Poor moisture control”

Advertised Vs Actual Product5%

“Not as advertised”

Water Resistance4%

“The water just runs off or sits”

Absorbency3%

“Not absorbent”

Size-Overall3%

“Had my doubts when this arrived as stupidly did not read blurb about size”

Wood Quality3%

“Too much wood chips I was very disapointed”

Contamination2%

“looks like a contamination”

Top return reasons

Size-Overall30%
Advertised Vs Actual Product17%
Value For Money10%
Plant Growth9%
Leak-Proof5%
Quality-Overall5%
Moist/Dry4%
Smell4%
Contamination3%
Defective Material/Parts2%

Common questions

Is seed compost profitable to sell on Amazon United Kingdom?
The niche generates £299K/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -73.2%. Flapen's verdict: Worth a look (50/100).
How competitive is the seed compost niche?
15 brands and 38 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 71% of demand.
What do buyers complain about in seed compost?
Top complaints mined from reviews: Plant Growth, Quality-Overall, Value For Money. The return rate is 0.0%.
When does demand for seed compost peak?
Demand peaks in Jan–Feb–Mar–Apr; the busiest month runs 19.1× the quietest.
What does it cost to enter the seed compost niche?
Listings span £5.94–£16.75; the average listing price is £8.78 (sweet spot $15–$100). The average incumbent carries 1,142 reviews — the moat a new listing must climb.