---
title: "John Innes No3 Compost — £153K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/john-innes-no3-compost"
last_updated: "2026-08-01T05:58:13.375Z"
locale: en
meta:
description: "Niche score 46/100 · £153K/yr market · 117K searches/yr · £11.12 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £153K/yr market · 117K searches/yr · £11.12 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "John Innes No3 Compost — £153K/yr Amazon UK Niche (2026) - Flapen"
---
# **john innes no3 compost**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 33Growth 71Conversion 94Competition 7Returns 100Price range 16Avg price 43Brand share 0Review moat 62Quality gap 37
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.8%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+54.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****1,002.14**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****£11.12**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£153K**
£153K/yr · 117K searches
**Price range**
**Bad****£6.73–£16.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Bad****91%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, john innes no3 compost is a £153K/yr Amazon United Kingdom market (117K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Apr–May–Jun–Jul. Verdict: Skip it — 46/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **john innes no3 compost market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **£167K–£222K**
- units × avg price
- **Conversion rate**
- **11.8%**
- **Avg BSR**
- **#152**
- **Page quality**
- **0%**
- **Prime**
- **43%**
- **Sponsored**
- **29%**
- **Out of stock**
- **0.8%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **191 days**
## **Competition & brand share**
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**17**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**91%**
Top 20: 100%
**Open market**
**0%**
- Westland85% - Topline6% - SuperGift.com4% - Jamieson Brothers4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +54.2% search growth over the last 90 days.
5K4KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 9.7×
[**Open Trend **](https://flapen.com/research/uk/home-garden/john-innes-no3-compost/trend)
## **Top john innes no3 compost search terms**
- **john innes no3 compost**62K/yr+52.7%11.2% conv. - **john innes no 3**31K/yr+31.3%9.7% conv. - **john innes no 3 compost 50l**10K/yr+93.4%5.3% conv. - **loam based compost**8K/yr+89.0%2.4% conv. - **john innes no 3 compost**4K/yr+85.3%7.8% conv. - **john innes no. 3**3K/yr+100.0%9.2% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/john-innes-no3-compost/search-terms)
## **Top john innes no3 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%15%£23K30%£46K45%£69K60%£92K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Westland 30L No.3 John Innes Mature Plant Compost**Westland**£9.83**4.5★913 rev](https://www.amazon.co.uk/dp/B007GYYX3I) [2**Westland John Innes Number 3 Mature Plant Compost 35L**Westland**£10.80**4.4★195 rev](https://www.amazon.co.uk/dp/B07PYPLZY1) [3**WESTLAND John Innes No3 Mature Plant Compost 10L**Westland**£6.73**4.6★191 rev](https://www.amazon.co.uk/dp/B07T7JDR72) [4**Mature Plant Garden Potting Compost - Peat Free No3 Mature Plant Potting Seedling Compost 28L Bag with Topline Card for Outdoor & Indoor House Plants. Enriched with 4 Month Feed**Topline**£11.89**4.7★40 rev](https://www.amazon.co.uk/dp/B0C11ZKMZ6) [5**Westland 60L Multi-Purpose Compost with John Innes**Westland**£10.48**4.5★4,650 rev](https://www.amazon.co.uk/dp/B00I950XGY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**28L John Innes No.3 Mature Plant Compost Nutrient Rich Soil Mix for Strong Root Development Ideal for Potting Mature Plants Shrubs & Trees Traditional Loam Based Formula**SuperGift.com**£11.54**12 rev11mo ago](https://www.amazon.co.uk/dp/B0FLK871J7) [**Mature Plant Garden Potting Compost - Peat Free No3 Mature Plant Potting Seedling Compost 28L Bag with Topline Card for Outdoor & Indoor House Plants. Enriched with 4 Month Feed**Topline**£11.89**40 rev3y ago](https://www.amazon.co.uk/dp/B0C11ZKMZ6) [**Multi Purpose Compost with added John Innes 60L - 6 months feeding added as standard to this premium mix - Ideal for use at home in the garden - By Jamieson Brothers**Jamieson Brothers**£16.59**1,014 rev4y ago](https://www.amazon.co.uk/dp/B09DLJVQDC) [**WESTLAND John Innes No3 Mature Plant Compost 10L**Westland**£6.73**191 rev6y ago](https://www.amazon.co.uk/dp/B07T7JDR72) [**Westland John Innes Number 3 Mature Plant Compost 35L**Westland**£10.80**195 rev7y ago](https://www.amazon.co.uk/dp/B07PYPLZY1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**WESTLAND John Innes No3 Mature Plant Compost 10L**Westland**£6.73**4.6★**▲ 66%**](https://www.amazon.co.uk/dp/B07T7JDR72) [**Mature Plant Garden Potting Compost - Peat Free No3 Mature Plant Potting Seedling Compost 28L Bag with Topline Card for Outdoor & Indoor House Plants. Enriched with 4 Month Feed**Topline**£11.89**4.7★**▲ 58%**](https://www.amazon.co.uk/dp/B0C11ZKMZ6) [**Multi Purpose Compost with added John Innes 60L - 6 months feeding added as standard to this premium mix - Ideal for use at home in the garden - By Jamieson Brothers**Jamieson Brothers**£16.59**4.7★**▲ 15%**](https://www.amazon.co.uk/dp/B09DLJVQDC) [**28L John Innes No.3 Mature Plant Compost Nutrient Rich Soil Mix for Strong Root Development Ideal for Potting Mature Plants Shrubs & Trees Traditional Loam Based Formula**SuperGift.com**£11.54**4.3★**— 3%**](https://www.amazon.co.uk/dp/B0FLK871J7) [**Westland 30L No.3 John Innes Mature Plant Compost**Westland**£9.83**4.5★**— 1%**](https://www.amazon.co.uk/dp/B007GYYX3I)
**~~View all trending →~~**
## **What buyers say about john innes no3 compost**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**31%
*“The compost looks good quality”*
**Plant Growth**28%
*“Good for your plants”*
**Value For Money**16%
*“Fair price”*
**Advertised Vs Actual Product**8%
*“exactly as advertised”*
**Moist/Dry**2%
*“Its really dry I hope its ok for my bedding plants & tomatoes”*
**Ease Of Cleaning**2%
*“Good dirt”*
**Strength**1%
*“Stable reliable base”*
**Ease Of Use**1%
*“Easy to use”*
**Thickness**1%
*“Finer than other composts I have bought”*
**Weight Light**1%
*“Lightweight, perfect compost”*
### **What buyers complain about **
**Advertised Vs Actual Product**37%
*“Misleading sizing”*
**Value For Money**9%
*“I know it is more expensive”*
**Plant Growth**6%
*“Not for seedlingss”*
**Wood Quality**6%
*“Not great quality, very woody”*
**Pest/Insect Control**6%
*“Unfortunately my pack was completely riddled with fungus gnats. little flies.”*
**Size-Overall**6%
*“Short”*
**Material Quality**3%
*“This is not loam based”*
**Suitable For Indoor**3%
*“for indoor plants it's an absolute no”*
**Moist/Dry**3%
*“quickly dry after watering”*
### **Top return reasons **
**Advertised Vs Actual Product**35%
**Value For Money**15%
**Moist/Dry**15%
**Size-Overall**15%
**Contamination**8%
**Smell**8%
**Leak-Proof**4%
## **Common questions**
- **Is john innes no3 compost profitable to sell on Amazon United Kingdom?**
- The niche generates £153K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +54.2%. Flapen's verdict: Skip it (46/100).
- **How competitive is the john innes no3 compost niche?**
- 4 brands and 17 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in john innes no3 compost?**
- Top complaints mined from reviews: Advertised Vs Actual Product, Value For Money, Plant Growth. The return rate is 0.0%.
- **When does demand for john innes no3 compost peak?**
- Demand peaks in Mar–Apr–May–Jun–Jul; the busiest month runs 9.7× the quietest.
- **What does it cost to enter the john innes no3 compost niche?**
- Listings span £6.73–£16.59; the average listing price is £11.12 (sweet spot $15–$100). The average incumbent carries 1,002 reviews — the moat a new listing must climb.
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