iron sulphate for lawns
Skip itSoft demand (-73.7% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Conversion
Great8.2%search→purchase rate — share of searches ending in a sale
Review moat
Good551.71avg incumbent reviews — the moat a new listing must climb
Price range
Good£5.31–£36.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£13.88avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Market size
Okay£114K£114K/yr · 101K searches
Brand share
Okay89%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
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.Peak months: Mar, Apr · busiest ÷ quietest = 24.3×
Top iron sulphate for lawns search terms
- iron sulphate for lawns40K/yr
- iron sulphate31K/yr
- sulphate of iron6K/yr
- iron sulphate moss killer10K/yr
- iron sulfate4K/yr
- liquid iron sulphate for lawns2K/yr
- ferrous sulphate moss killer3K/yr
- iron sulphate moss killer for lawns4K/yr
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.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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£13.314.3★3,131 rev
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£8.924.3★1,428 rev
Westland Sulphate of Iron (Plant Food for Ericaceous Plants) 1.5 kg
Westland£5.314.5★1,108 rev
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£13.834.4★942 rev
Iron (II) Sulphate Heptahydrate 1kg - Lawn Conditioner and Green Up
Intralabs£5.804.5★606 rev
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£16.5741 rev
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£11.5276 rev
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£8.35167 rev
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£11.60127 rev
Ultima-Plus XP Iron Sulphate Lawn Tonic Liquid Fertiliser with Seaweed Extract - Provides Greener Grass and Hardens Turf (5 Litres)
ULTIMA-PLUS XP£14.0833 rev
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£36.644.4★
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£14.154.4★
Westland Sulphate of Iron (Plant Food for Ericaceous Plants) 1.5 kg
Westland£5.314.5★
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£11.524.1★
Intralabs Iron (II) Sulphate Heptahydrate 2kg - Lawn Conditioner and Green Up
Intralabs£9.604.5★
What buyers say about iron sulphate for lawns
What buyers praise and complain about, mined from review topics.What buyers love
“Quality product and very easy to use”
“Did the job brilliantly”
“Comes as instructed easy to use value for money”
“Works well”
“Highly recommend, easy to use,”
“Clear instructions”
“it mainly improved the colour of the lawn”
“Effective”
“Within just a couple of days, you can see the grass greening up and looking much more even and nourished”
“300 8L sprayers worth”
What buyers complain about
“Just wish it had instructions that were readable”
“Poor quality control”
“Did not work”
“completely unsuitable for use in sprayers”
“The lawn looked a much darker green after 2 days”
“WASTE OF MONEY”
“the moss was dead after 2 days”
“Be careful where you mix it as it stains anything slabs concrete stones etc”
“just break them up”
“Even the watering can sprinkler attachment requires regular cleaning when in use”
Top return reasons
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.