---
title: "Onion Sets — £45K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/onion-sets"
last_updated: "2026-07-31T23:15:21.029Z"
locale: en
meta:
description: "Niche score 53/100 · £45K/yr market · 106K searches/yr · £7.83 avg price. Soft demand (-33.0% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · £45K/yr market · 106K searches/yr · £7.83 avg price. Soft demand (-33.0% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Onion Sets — £45K/yr Amazon UK Niche (2026) - Flapen"
---
# **onion sets**
**Worth a look**
Shows low returns (0.0%), but soft demand (-33.0% this quarter) keeps it on the watch list.
Market size 11Growth 8Conversion 62Competition 84Returns 100Price range 15Avg price 22Brand share 57Review moat 96Quality gap 87
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Review moat**
**Incredible****83.84**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Competition**
**Great****31%**
top-5 click share — an open shelf
**Conversion**
**Good****5.4%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Bad****£7.83**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£2.33–£17.25**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Bad****£45K**
£45K/yr · 106K searches
**Growth**
**Bad****-33.0%**
90-day search growth — must beat 0% to launch
**Signals**[** Out of Stock**](https://flapen.com/research/niches?market=uk&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United Kingdom niche tracking, onion sets is a £45K/yr Amazon United Kingdom market (106K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 53/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **onion sets market data**
- **Units sold / yr**
- **10K–13K**
- avg 250–500/product
- **Revenue / yr**
- **£78K–£98K**
- units × avg price
- **Conversion rate**
- **5.4%**
- **Avg BSR**
- **#1,575**
- **Page quality**
- **0%**
- **Prime**
- **51%**
- **Sponsored**
- **84%**
- **Out of stock**
- **63.0%**
- **Avg brand age**
- **54 months**
- **Avg seller age**
- **195 days**
## **Competition & brand share**
Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.
**Brands**
**17 **▲rising
**Sellers**
**22**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**31%**
Top 20: 68%
**Open market**
**24%**
- Carbeth Plants29% - schone15% - Botanical Bliss10% - Schone Products (UK)10% - Jamieson Brothers7% - The Seed Shed6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -33.0% search growth over the last 90 days.
4K3KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 7.9×
[**Open Trend **](https://flapen.com/research/uk/home-garden/onion-sets/trend)
## **Top onion sets search terms**
- **onion sets**59K/yr-43.1%8.8% conv. - **onion sets for planting now uk**22K/yr-23.5%11.3% conv. - **onion bulbs for planting uk**5K/yr+2.2%4.8% conv. - **onion bulbs**5K/yr+1.9%3.5% conv. - **onions sets for planting uk**4K/yr-24.0%6.9% conv. - **winter onion sets**3K/yr+444.1%3.7% conv. - **winter onions sets**2K/yr>1,000%0.0% conv. - **onion sets autumn planting**3K/yr+960.0%1.9% conv. - **winter onion sets for planting now uk**3K/yr-35.1%8.1% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/onion-sets/search-terms)
## **Top onion sets 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%3%£1K6%£3K9%£4K12%£5K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**2 x 20 Twin Pack Onions- Centurion & Red Baron- High Yielding Mild to Strong Flavour- Perfect to Cultivate in Your Beautiful Garden - RHS Award of Garden Merit**Schone Products (UK)**£9.65**4.0★418 rev](https://www.amazon.co.uk/dp/B085HQ5HKQ) [2**Carbeth Plants Onion Sets 100 x Setton Vegetable Bulbs**Carbeth Plants**£8.96**4.6★45 rev](https://www.amazon.co.uk/dp/B0DVC9X3BQ) [3**Carbeth Plants Yellow Onion Sets Centurion 250g**Carbeth Plants**£7.11**4.6★116 rev](https://www.amazon.co.uk/dp/B0FMS7V89M) [4**50 x Onion Sets Stuttgarter Bumper Pack RHS Award of Garden Merit Easiest and Quickest Way to Grow Onions Sweet Mild Taste - Great to Grow in Your Beautiful Garden**schone**£9.07**4.2★178 rev](https://www.amazon.co.uk/dp/B08TVQRHQY) [5**Johnsons Onion Ailsa Craig**Johnsons**£2.68**4.5★187 rev](https://www.amazon.co.uk/dp/B00I9VVFFQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Onion Seeds 6 in 1 Variety Pack Ailsa Craig Brunswick Rijnsburger Noordhollandse Strogele Ishikura White Lisbon Heirloom Non-GMO Onion Seeds Variety Pack**Simply Garden**£7.03**0 rev3mo ago](https://www.amazon.co.uk/dp/B0GVG5LRQQ) [**Onion Sets Pack of 50 Grow Your Own Vegetables Outdoor Planting (Stuttgarter)**Bryncir Garden Centre**£11.08**5 rev5mo ago](https://www.amazon.co.uk/dp/B0GNL1DC4P) [**Onion Sets Pack of 50 Grow Your Own Vegetables Outdoor Planting (Sturon)**Bryncir Garden Centre**£10.76**5 rev5mo ago](https://www.amazon.co.uk/dp/B0GNK95K29) [**Marshalls Garden Rumba Heat-Prepared Onion Sets Spring Planting Approx 65-75 Sets**marshalls garden**£3.95**7 rev6mo ago](https://www.amazon.co.uk/dp/B0GWR976FK) [**Carbeth Plants Pink Panther 250g Onion Sets for Planting - Easy to Grow Mild Flavoured Onion Bulbs for Gardens & Allotments - High Yielding Crops Perfect for Salads Cooking & Long Storage**Carbeth Plants**£6.98**5 rev6mo ago](https://www.amazon.co.uk/dp/B0GGZNJC8H)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Carbeth Plants - Onion Sets Karmen 100 x Vegetable Bulbs - 500g Red Spring Planting Quality Sets - Reliable High Yielding Variety Easy to Grow - Perfect for Outdoor UK Growing**Carbeth Plants**£8.91**4.6★**▲ 285%**](https://www.amazon.co.uk/dp/B0DVC8Z2MC) [**Onion Sets Pack of 50 Grow Your Own Vegetables Outdoor Planting (Stuttgarter)**Bryncir Garden Centre**£11.08**2.2★**▲ 284%**](https://www.amazon.co.uk/dp/B0GNL1DC4P) [**Onion Sets Pack of 50 Grow Your Own Vegetables Outdoor Planting (Sturon)**Bryncir Garden Centre**£10.76**2.2★**▲ 283%**](https://www.amazon.co.uk/dp/B0GNK95K29) [**Onion Seeds 6 in 1 Variety Pack Ailsa Craig Brunswick Rijnsburger Noordhollandse Strogele Ishikura White Lisbon Heirloom Non-GMO Onion Seeds Variety Pack**Simply Garden**£7.03**0.0★**▲ 279%**](https://www.amazon.co.uk/dp/B0GVG5LRQQ) [**Johnsons Onion Ailsa Craig**Johnsons**£2.68**4.5★**▲ 277%**](https://www.amazon.co.uk/dp/B00I9VVFFQ)
**~~View all trending →~~**
## **What buyers say about onion sets**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**33%
*“Excellent product”*
**Plant Growth**30%
*“Growing well”*
**Value For Money**19%
*“Good value for money”*
**Advertised Vs Actual Product**5%
*“As described”*
**Moist/Dry**1%
*“Keep well watered and fed”*
**Storage Capacity**1%
*“produces large onions that store really well”*
**Taste-Overall**1%
*“Onions perfect”*
**Instructions/User Manual/Troubleshooting**1%
*“Clear instructions on the packet”*
**Durability**1%
*“Very good, they all grew despite the drought”*
**Ease Of Use**1%
*“Easy to grow”*
### **What buyers complain about **
**Quality-Overall**33%
*“The onion sets were of a terrible quality - worse I have ever seen”*
**Moist/Dry**16%
*“moisture got in”*
**Plant Growth**15%
*“not fit to plant”*
**Value For Money**11%
*“The price is high”*
**Size-Overall**11%
*“Although some bulbs looked small”*
**Hard Feel**4%
*“20% of them are dead or soft”*
**Advertised Vs Actual Product**2%
*“bore no resemblance to their advert”*
**Color**2%
*“So not a red”*
**Natural Resource Wastage**1%
*“Waste of money and effort”*
**Thickness**1%
*“second packet after a MONTH just very thin SHOOTS about two inches high”*
### **Top return reasons **
**Plant Growth**32%
**Quality-Overall**14%
**Moist/Dry**8%
**Smell**8%
**Size-Overall**7%
**Advertised Vs Actual Product**5%
**Value For Money**5%
**Hard Feel**4%
**Functionality-Overall**4%
**Charging**4%
## **Common questions**
- **Is onion sets profitable to sell on Amazon United Kingdom?**
- The niche generates £45K/yr across 57 tracked products. 0 of 16 products launched in the last 360 days are still selling. 90-day search growth is -33.0%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the onion sets niche?**
- 17 brands and 22 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in onion sets?**
- Top complaints mined from reviews: Quality-Overall, Moist/Dry, Plant Growth. The return rate is 0.0%.
- **When does demand for onion sets peak?**
- Demand peaks in Mar–Apr–May; the busiest month runs 7.9× the quietest.
- **What does it cost to enter the onion sets niche?**
- Listings span £2.33–£17.25; the average listing price is £7.83 (sweet spot $15–$100). The average incumbent carries 84 reviews — the moat a new listing must climb.
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