---
title: "Iron Sulphate for Lawns — £114K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/iron-sulphate-for-lawns"
last_updated: "2026-08-01T04:17:26.383Z"
locale: en
meta:
description: "Niche score 48/100 · £114K/yr market · 101K searches/yr · £13.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £114K/yr market · 101K searches/yr · £13.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Iron Sulphate for Lawns — £114K/yr Amazon UK Niche (2026) - Flapen"
---
# **iron sulphate for lawns**
**Skip it**
Soft demand (-73.7% this quarter) — this niche doesn't clear our bar today.
Market size 27Growth 0Conversion 80Competition 45Returns 99Price range 69Avg price 66Brand share 27Review moat 74Quality gap 60
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.2%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****551.71**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****£5.31–£36.64**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****£13.88**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****£114K**
£114K/yr · 101K searches
**Brand share**
**Okay****89%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-73.7%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, iron sulphate for lawns is a £114K/yr Amazon United Kingdom market (101K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Mar–Apr. Verdict: Skip it — 48/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **iron sulphate for lawns market data**
- **Units sold / yr**
- **8K–10K**
- avg 500–750/product
- **Revenue / yr**
- **£111K–£139K**
- units × avg price
- **Conversion rate**
- **8.2%**
- **Avg BSR**
- **#135**
- **Page quality**
- **0%**
- **Prime**
- **43%**
- **Sponsored**
- **38%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**8 **—flat
**Sellers**
**23**
**Top-5 brand share**
**89%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 99%
**Open market**
**6%**
- Pro-Kleen52% - Westland13% - GUARD-EN-FORCE12% - Intralabs7% - Elixir Gardens5% - ULTIMA-PLUS XP5% - Open — no brand owns it (2 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -73.7% search growth over the last 90 days.
15K10KSpike '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr · busiest ÷ quietest = 24.3×
[**Open Trend **](https://flapen.com/research/uk/home-garden/iron-sulphate-for-lawns/trend)
## **Top iron sulphate for lawns search terms**
- **iron sulphate for lawns**40K/yr-72.8%9.3% conv. - **iron sulphate**31K/yr-74.7%7.6% conv. - **sulphate of iron**6K/yr-50.6%12.8% conv. - **iron sulphate moss killer**10K/yr-83.7%8.0% conv. - **iron sulfate**4K/yr-47.0%8.0% conv. - **liquid iron sulphate for lawns**2K/yr-64.7%6.9% conv. - **ferrous sulphate moss killer**3K/yr-86.1%7.8% conv. - **iron sulphate moss killer for lawns**4K/yr-92.1%10.8% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/iron-sulphate-for-lawns/search-terms)
## **Top iron sulphate for lawns 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%5%£6K10%£11K15%£17K20%£23K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Pro-Kleen 2.5 KG PREMIUM Iron Sulphate (Makes up to 2500L When Diluted & Covers up to 2500m2) - Iron Lawn Conditioner and Turf Hardener. Dry Powder soluble in water 232861 Packaging May Vary**Pro-Kleen**£13.31**4.3★3,131 rev](https://www.amazon.co.uk/dp/B00UXLM51I) [2**Pro-Kleen Iron Sulphate 1 KG PREMIUM Ferrous (Makes up to 1000L When Diluted & Covers up to 1000m2) Pure Lawn Tonic- Lawn Conditioner and Turf Hardener. Damp Grade Soluble in Water**Pro-Kleen**£8.92**4.3★1,428 rev](https://www.amazon.co.uk/dp/B00UXKK99E) [3**Westland Sulphate of Iron (Plant Food for Ericaceous Plants) 1.5 kg**Westland**£5.31**4.5★1,108 rev](https://www.amazon.co.uk/dp/B001P3SMJ2) [4**Pro-Kleen Lawn Tonic Liquid Iron Sulphate Quality Ferrous Conditioner Fertiliser Grass Greener Turf Hardener | Long-Lasting for a Healthier Looking Garden | Helps Prevent Lawn Disease (5 Litres)**Pro-Kleen**£13.83**4.4★942 rev](https://www.amazon.co.uk/dp/B07NRS145Z) [5**Iron (II) Sulphate Heptahydrate 1kg - Lawn Conditioner and Green Up**Intralabs**£5.80**4.5★606 rev](https://www.amazon.co.uk/dp/B00UXBXNYG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Jarder Iron Sulphate Liquid With Nitrogen 5L - Feeds Lawns - Greens Grass - Grows Grass - Lawn Tonic - 20 Treatments per 5L - Premium Blend and Iron Content**Jarder**£16.57**41 rev1y ago](https://www.amazon.co.uk/dp/B0DWG1SH7Q) [**Pro-Kleen Iron Sulphate Spreader Granules 2.5kg - No Mixing Ready to Use Covers up to 83m2 - With added Magnesium and Seaweed - Ferrous Sulphate - Fast Acting Grass Greening Fertiliser**Pro-Kleen**£11.52**76 rev4y ago](https://www.amazon.co.uk/dp/B09VCJCR7T) [**Ultima-Plus XP Premium Iron Sulphate - Greens Grass and Hardens Turf for Healthier Lawns & Helps to Prevent Lawn Disease - Makes up to 1000L & Covers up to 1000m2(1kg)**ULTIMA-PLUS XP**£8.35**167 rev5y ago](https://www.amazon.co.uk/dp/B08HJ1CYSY) [**Ultima-Plus XP Premium Iron Sulphate - Greens Grass and Hardens Turf for Healthier Lawns & Helps to Prevent Lawn Disease - Makes up to 2500L When Diluted & Covers up to 2500m2 (2.5 kg)**ULTIMA-PLUS XP**£11.60**127 rev5y ago](https://www.amazon.co.uk/dp/B08HM2NNGR) [**Ultima-Plus XP Iron Sulphate Lawn Tonic Liquid Fertiliser with Seaweed Extract - Provides Greener Grass and Hardens Turf (5 Litres)**ULTIMA-PLUS XP**£14.08**33 rev6y ago](https://www.amazon.co.uk/dp/B087RR6B4V)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Elixir Gardens Soluble Sulphate of Iron Lawn Tonic (Ferrous Sulphate) | Iron Sulphate 20% Fe 25kg Bag | Makes 2000L of liquid feed**Elixir Gardens**£36.64**4.4★**▲ 300%**](https://www.amazon.co.uk/dp/B07YX3B6KS) [**Elixir Gardens Soluble Sulphate of Iron 20% Fe Fertiliser | Lawn & Turf Treatment/Grass Green-Up | 500g-25kg Weights Available in Bags & Tubs | 5kg Bag | Makes up to 400 Litres of Liquid Feed**Elixir Gardens**£14.15**4.4★**▲ 197%**](https://www.amazon.co.uk/dp/B07YX2S4L8) [**Westland Sulphate of Iron (Plant Food for Ericaceous Plants) 1.5 kg**Westland**£5.31**4.5★**▲ 99%**](https://www.amazon.co.uk/dp/B001P3SMJ2) [**Pro-Kleen Iron Sulphate Spreader Granules 2.5kg - No Mixing Ready to Use Covers up to 83m2 - With added Magnesium and Seaweed - Ferrous Sulphate - Fast Acting Grass Greening Fertiliser**Pro-Kleen**£11.52**4.1★**▲ 80%**](https://www.amazon.co.uk/dp/B09VCJCR7T) [**Intralabs Iron (II) Sulphate Heptahydrate 2kg - Lawn Conditioner and Green Up**Intralabs**£9.60**4.5★**▲ 80%**](https://www.amazon.co.uk/dp/B0765X9PD3)
**~~View all trending →~~**
## **What buyers say about iron sulphate for lawns**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“Quality product and very easy to use”*
**Advertised Vs Actual Product**19%
*“Did the job brilliantly”*
**Value For Money**16%
*“Comes as instructed easy to use value for money”*
**Efficiency**13%
*“Works well”*
**Ease Of Use**9%
*“Highly recommend, easy to use,”*
**Instructions/User Manual/Troubleshooting**5%
*“Clear instructions”*
**Color**4%
*“it mainly improved the colour of the lawn”*
**Strength**3%
*“Effective”*
**Plant Growth**1%
*“Within just a couple of days, you can see the grass greening up and looking much more even and nourished”*
**Spray/Flow**1%
*“300 8L sprayers worth”*
### **What buyers complain about **
**Instructions/User Manual/Troubleshooting**31%
*“Just wish it had instructions that were readable”*
**Quality-Overall**9%
*“Poor quality control”*
**Functionality-Overall**7%
*“Did not work”*
**Spray/Flow**7%
*“completely unsuitable for use in sprayers”*
**Color**6%
*“The lawn looked a much darker green after 2 days”*
**Natural Resource Wastage**4%
*“WASTE OF MONEY”*
**Plant Growth**4%
*“the moss was dead after 2 days”*
**Stain Resistance**4%
*“Be careful where you mix it as it stains anything slabs concrete stones etc”*
**Durability**4%
*“just break them up”*
**Ease Of Cleaning**4%
*“Even the watering can sprinkler attachment requires regular cleaning when in use”*
### **Top return reasons **
**Leak-Proof**35%
**Defective Material/Parts**10%
**Size-Overall**9%
**Advertised Vs Actual Product**9%
**Ease Of Use**8%
**Functionality-Overall**4%
**Maintenance And Repair**4%
**Product Condition**3%
**Instructions/User Manual/Troubleshooting**3%
**Color**3%
## **Common questions**
- **Is iron sulphate for lawns profitable to sell on Amazon United Kingdom?**
- The niche generates £114K/yr across 21 tracked products. 90-day search growth is -73.7%. Flapen's verdict: Skip it (48/100).
- **How competitive is the iron sulphate for lawns niche?**
- 8 brands and 23 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 89% of demand.
- **What do buyers complain about in iron sulphate for lawns?**
- Top complaints mined from reviews: Instructions/User Manual/Troubleshooting, Quality-Overall, Functionality-Overall. The return rate is 0.3%.
- **When does demand for iron sulphate for lawns peak?**
- Demand peaks in Mar–Apr; the busiest month runs 24.3× the quietest.
- **What does it cost to enter the iron sulphate for lawns niche?**
- Listings span £5.31–£36.64; the average listing price is £13.88 (sweet spot $15–$100). The average incumbent carries 552 reviews — the moat a new listing must climb.
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