---
title: "Phostrogen All Purpose Plant Food — £34K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/phostrogen-all-purpose-plant-food"
last_updated: "2026-08-01T00:25:54.875Z"
locale: en
meta:
description: "Niche score 43/100 · £34K/yr market · 19K searches/yr · £7.66 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · £34K/yr market · 19K searches/yr · £7.66 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Phostrogen All Purpose Plant Food — £34K/yr Amazon UK Niche (2026) - Flapen"
---
# **phostrogen all purpose plant food**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 9Growth 97Conversion 100Competition 11Returns 100Price range 0Avg price 21Brand share 0Review moat 48Quality gap 25
**Conversion**
**Incredible****23.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+188.5%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****1,706.13**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****£7.66**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****87%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****£34K**
£34K/yr · 19K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****£4.38–£12.31**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Trending**](https://flapen.com/research/niches?market=uk&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United Kingdom niche tracking, phostrogen all purpose plant food is a £34K/yr Amazon United Kingdom market (19K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Skip it — 43/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **phostrogen all purpose plant food market data**
- **Units sold / yr**
- **4K–5K**
- avg 500–750/product
- **Revenue / yr**
- **£31K–£38K**
- units × avg price
- **Conversion rate**
- **23.3%**
- **Avg BSR**
- **#198**
- **Page quality**
- **0%**
- **Prime**
- **75%**
- **Sponsored**
- **63%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **69 months**
- **Avg seller age**
- **188 days**
## **Competition & brand share**
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▲rising
**Sellers**
**41**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**87%**
Top 20: 100%
**Open market**
**0%**
- Phostrogen87% - HOCHSTE11% - ASA3%
## **Demand & seasonality**
Weekly Amazon search volume, last 61 weeks — +188.5% search growth over the last 90 days.
1K600Spike '26 seasonJunJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 39.8×
[**Open Trend **](https://flapen.com/research/uk/home-garden/phostrogen-all-purpose-plant-food/trend)
## **Top phostrogen all purpose plant food search terms**
- **phostrogen plant food**11K/yr+177.4%19.2% conv. - **phostrogen all purpose plant food**5K/yr+204.2%16.4% conv. - **phostrogen**3K/yr+212.1%17.3% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/phostrogen-all-purpose-plant-food/search-terms)
## **Top phostrogen all purpose plant food 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%£5K30%£10K45%£15K60%£21K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Phostrogen All Purpose Plant Food 800g - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use**Phostrogen**£4.63**4.6★3,642 rev](https://www.amazon.co.uk/dp/B004R1WNCG) [2**Phostrogen All Purpose Plant Food 2kg - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use**Phostrogen**£12.31**4.6★3,642 rev](https://www.amazon.co.uk/dp/B01B5UZWFG) [3**HOCHSTE All Purpose Plant Food Fertiliser Soluble Feed for Flowers Lawns Fruits & Vegetables Supports Root Strength Growth & Colour Use with Measuring Scoop (40 cans 400g)**HOCHSTE**£10.42**5.0★4 rev](https://www.amazon.co.uk/dp/B0FFZ7KDND) [4**Phostrogen Organic All Purpose Liquid Plant Food 1L - All Purpose Organic Fertiliser - Enriched with Seaweed Extract for Healthy Growth - More Vegetables Brighter Blooms - Plant Nutrition**Phostrogen**£6.55**4.4★1,291 rev](https://www.amazon.co.uk/dp/B09R5268HB) [5**Phostrogen Organic All Purpose Plant Food 800g - All Purpose Organic Fertiliser - Enriched with Seaweed Extract for Healthy Growth - More Vegetables Brighter Blooms - Plant Nutrition**Phostrogen**£6.31**4.4★1,291 rev](https://www.amazon.co.uk/dp/B0B1F6CWMD)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**HOCHSTE All Purpose Plant Food Fertiliser Soluble Feed for Flowers Lawns Fruits & Vegetables Supports Root Strength Growth & Colour Use with Measuring Scoop (40 cans 400g)**HOCHSTE**£10.42**4 rev1y ago](https://www.amazon.co.uk/dp/B0FFZ7KDND) [**Phostrogen All Purpose Plant Food - Soluble Feed Growth Fertiliser Lawn - Plant and Edibles Fertiliser Feed - Indoor and Garden Use - Plant Nutrition - Improves Drought Resistance (800g (80 can))**ASA**£11.17**3 rev1y ago](https://www.amazon.co.uk/dp/B0F22MZ6B6) [**Phostrogen Organic All Purpose Plant Food 800g - All Purpose Organic Fertiliser - Enriched with Seaweed Extract for Healthy Growth - More Vegetables Brighter Blooms - Plant Nutrition**Phostrogen**£6.31**1,291 rev4y ago](https://www.amazon.co.uk/dp/B0B1F6CWMD) [**Phostrogen Organic All Purpose Liquid Plant Food 1L - All Purpose Organic Fertiliser - Enriched with Seaweed Extract for Healthy Growth - More Vegetables Brighter Blooms - Plant Nutrition**Phostrogen**£6.55**1,291 rev4y ago](https://www.amazon.co.uk/dp/B09R5268HB) [**Phostrogen All Purpose Plant Food 2kg - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use**Phostrogen**£12.31**3,642 rev10y ago](https://www.amazon.co.uk/dp/B01B5UZWFG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Phostrogen All Purpose Plant Food - Soluble Feed Growth Fertiliser Lawn - Plant and Edibles Fertiliser Feed - Indoor and Garden Use - Plant Nutrition - Improves Drought Resistance (800g (80 can))**ASA**£11.17**4.6★**▲ 57%**](https://www.amazon.co.uk/dp/B0F22MZ6B6) [**Phostrogen All Purpose Plant Food 400g - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use**Phostrogen**£4.38**4.6★**▲ 31%**](https://www.amazon.co.uk/dp/B007CI1Z8O) [**Phostrogen Organic All Purpose Liquid Plant Food 1L - All Purpose Organic Fertiliser - Enriched with Seaweed Extract for Healthy Growth - More Vegetables Brighter Blooms - Plant Nutrition**Phostrogen**£6.55**4.4★**▲ 30%**](https://www.amazon.co.uk/dp/B09R5268HB) [**Phostrogen All Purpose Plant Food 800g - Plant and Edibles Fertiliser Feed - for Promoting Healthy Growth - Improves Drought Resistance - Plant Nutrition - Indoor and Garden Use**Phostrogen**£4.63**4.6★**— 2%**](https://www.amazon.co.uk/dp/B004R1WNCG) [**Phostrogen Organic All Purpose Plant Food 800g - All Purpose Organic Fertiliser - Enriched with Seaweed Extract for Healthy Growth - More Vegetables Brighter Blooms - Plant Nutrition**Phostrogen**£6.31**4.4★**— 1%**](https://www.amazon.co.uk/dp/B0B1F6CWMD)
**~~View all trending →~~**
## **What buyers say about phostrogen all purpose plant food**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**32%
*“Love this, plants always seem to flourish”*
**Quality-Overall**32%
*“ALL GOOD GOOD VFM”*
**Value For Money**16%
*“Exceptional value and fantastic product - great seller with customers in mind”*
**Ease Of Use**8%
*“EASY TO USE”*
**Strength**6%
*“Very powerful around the garfen”*
**Stain Resistance**3%
*“Doesnt stain the fingers”*
**Portability**3%
*“it's easy to carry in this form rather than big clumsy/heavy bottles of liquid”*
### **What buyers complain about **
**Plant Growth**100%
*“This product completely destroyed my plants”*
### **Top return reasons **
**Moist/Dry**50%
**Defective Material/Parts**50%
## **Common questions**
- **Is phostrogen all purpose plant food profitable to sell on Amazon United Kingdom?**
- The niche generates £34K/yr across 8 tracked products. 90-day search growth is +188.5%. Flapen's verdict: Skip it (43/100).
- **How competitive is the phostrogen all purpose plant food niche?**
- 3 brands and 41 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in phostrogen all purpose plant food?**
- Top complaints mined from reviews: Plant Growth. The return rate is 0.0%.
- **When does demand for phostrogen all purpose plant food peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 39.8× the quietest.
- **What does it cost to enter the phostrogen all purpose plant food niche?**
- Listings span £4.38–£12.31; the average listing price is £7.66 (sweet spot $15–$100). The average incumbent carries 1,706 reviews — the moat a new listing must climb.
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