Seaweed Liquid Fertilizer
MaybeAn estimated 0.0% of orders come back. But the products selling today already average 4.6★, so Seaweed Liquid Fertilizer is a Maybe.
- Flapen Score
- 64 / 100Top 11% of 5,777 Home & Garden niches · +13 vs the category median of 5164
- Market size
- £565K/yr215K searches / yr
- 90-day growth
- +100.2%search demand this quarter
- Competition
- 65%top-5 click share · 10 brands · 78 sellers
Flapen Score
Seaweed Liquid Fertilizer against its category
The dotted line is the Home & Garden average. Past it, Seaweed Liquid Fertilizer is stronger. Inside it, weaker.
Market
The Seaweed Liquid Fertilizer market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Seaweed Liquid Fertilizer 215K times last year and spent an estimated £565K. The top 5 brands take 81% of clicks. Demand peaks in Apr–May–Jun–Jul. Flapen scores it 64 out of 100, a Maybe.
01 · Demand
An estimated 15.3% of those searches ended in a purchase.
Shoppers searched for this 215K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 15.3% of those searches ended in a purchase. Searches in the last 90 days moved +100.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £565K a year.
- Searches, last 12 months
- 215K
- Growth, 90 days vs prior 90
- +100.2%
- Conversion, latest week
- 15.3%
- Market size, estimated
- £565Ka year
- Peak month
- May22.3× the quietest month
- Top search term
- seaweed fertiliser94K searches a year
02 · Price
A sale here is worth £17.16.
Listings sell for £17.16 on average, from £4.97 to £39.76. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 1,250 to 1,500 of them. At £17.16 that is £21K to £26K a year per listing.
- Average price
- £17.16inside the $15 to $100 sweet spot
- Price range
- £4.97–£39.76
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 1,250–1,500
- Revenue per listing a year
- £21K–£26K
- Returns
- 0.0%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
65% of listings pay for placement with sponsored ads. 80% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #40 within Fertilisers & Plant Food. It carries 1,734 reviews at 4.59 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 65%
- Prime listings
- 80%
- Out of stock, average day
- 0.0%
- Average rank
- #40in Fertilisers & Plant Food
- Average rating
- 4.59 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,734per listing
- Listings tracked
- 20
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 60 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 60 months
Products
Top Seaweed Liquid Fertilizer products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 26, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
envii SeaFeed Xtra Organic Seaweed Fertiliser Liquid Outdoor Plant Food Ideal for all Plants Lawns Gardens and House Plants Rich in Additional Nutrients - 1 Litre Makes up to 500L
- Price
- £11.41
- Rating
- 4.6/5
- Reviews
- 7,292
- Age
- 9y ago

doff CONCENTRATED LIQUID SEAWEED 1L Green
- Price
- £5.24
- Rating
- 4.6/5
- Reviews
- 231
- Age
- 4y ago

Maxicrop All Purpose Plant Growth Stimulant 1L - Natural Seaweed Based Liquid Biostimulant - Multivitamin Boost for All Garden Plants - Strong Roots - Healthy Growth - Builds Resilient Crops
- Price
- £6.44
- Rating
- 4.5/5
- Reviews
- 1,029
- Age
- 19y ago

ALGA-SOL Cold Press Concentrate Seaweed Extract Ascophyllum Seaweed Extract 5Ltr Biostimulant Fertiliser Fertilizer Seaweed Plant Feed Organic Fertiliser Fertilizer
- Price
- £16.30
- Rating
- 4.5/5
- Reviews
- 485
- Age
- 5y ago

The Shropshire Seaweed Co. Cold-Pressed Liquid Seaweed Fertilizer - Certified Organic Plant Food & Lawn Feed - Rich in Natural Nutrients for Growth Roots & Soil Health - Sustainably Sourced 1L
- Price
- £12.21
- Rating
- 4.6/5
- Reviews
- 1,008
- Age
- 14y ago
Trending
estimated 90-day click momentum
ALGA-SOL Cold Press Concentrate Seaweed Extract Ascophyllum Seaweed Extract 5Ltr Biostimulant Fertiliser Fertilizer Seaweed Plant Feed Organic Fertiliser Fertilizer
- Price
- £16.30
- Rating
- 4.5/5
- Reviews
- 485
- Age
- 5y ago

3 x Doff 1L Liquid Seaweed Concentrated Multi-Purpose Feed
- Price
- £11.07
- Rating
- 4.6/5
- Reviews
- 235
- Age
- 9y ago

Vitax Organic Liquid Seaweed Concentrated Bigger Crops Healthier Plants Suitable For Plants Flowers and Fruit & Vegetables- 1 Litres
- Price
- £7.44
- Rating
- 4.6/5
- Reviews
- 531
- Age
- 16y ago

The Shropshire Seaweed Co. Cold-Pressed Liquid Seaweed Fertilizer - Certified Organic Plant Food & Lawn Feed - Rich in Natural Nutrients for Growth Roots & Soil Health - Sustainably Sourced 5L
- Price
- £29.52
- Rating
- 4.6/5
- Reviews
- 1,008
- Age
- 14y ago

Maxicrop All Purpose Plant Growth Stimulant 1L - Natural Seaweed Based Liquid Biostimulant - Multivitamin Boost for All Garden Plants - Strong Roots - Healthy Growth - Builds Resilient Crops
- Price
- £6.44
- Rating
- 4.5/5
- Reviews
- 1,029
- Age
- 19y ago
Newest
by launch date
10L Premium Liquid Seaweed Fertiliser (1:200 Concentrate) Organic Plant Feed for Stronger Roots Greener Leaves & Healthier Growth Lawn Vegetables & Flowers - Dilutes up to 2 000L.
- Price
- £35.55
- Rating
- 4.7/5
- Reviews
- 111
- Age
- 1y ago

Pro-Kleen Organic Liquid Seaweed Fertiliser 5L - Ascophyllum Seaweed Extract for Grass Vegetables Fruit Flowers Shrubs Lawns & Trees - Concentrated Formula - Provides up to 500 Treatments
- Price
- £21.35
- Rating
- 4.8/5
- Reviews
- 70
- Age
- 2y ago

Liquid Seaweed Fertiliser 5L Organic Plant Food for All Plants Lawns & Vegetables Boosts Growth Stronger Roots & Healthier Plants Highly Concentrated (Makes Up To 1 000L)
- Price
- £25.28
- Rating
- 4.7/5
- Reviews
- 111
- Age
- 2y ago

doff CONCENTRATED LIQUID SEAWEED 1L Green
- Price
- £5.24
- Rating
- 4.6/5
- Reviews
- 231
- Age
- 4y ago

ALGA-SOL Cold Press Concentrate Seaweed Extract Ascophyllum Seaweed Extract 5Ltr Biostimulant Fertiliser Fertilizer Seaweed Plant Feed Organic Fertiliser Fertilizer
- Price
- £16.30
- Rating
- 4.5/5
- Reviews
- 485
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 65% of clicks. Leaders hold, but buyers still shop past them.
Brands
10 flat
Sellers
78
Est. top-5 brand share
81%
Top 20: 100%
Est. top-5 click share
65%
Top 20: 100%
Open market
14%
- Doff21%
- envii20%
- Maxicrop18%
- Mifica12%
- Shropshire Seaweed9%
- Vitax Ltd5%
- Open — no brand owns it (4 brands, 14%)
Demand
Seaweed Liquid Fertilizer search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 22.3×
Search terms
Top Seaweed Liquid Fertilizer search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- seaweed fertiliser94K/yr
- liquid seaweed30K/yr
- liquid seaweed fertiliser21K/yr
- seaweed plant food14K/yr
- liquid seaweed feed for plants15K/yr
- seaweed fertilizer12K/yr
- seaweed feed9K/yr
- organic seaweed fertiliser6K/yr
- sea weed fertiliser3K/yr
- liquid seaweed for lawns4K/yr
Reviews and returns
What reviews say buyers love and hate about Seaweed Liquid Fertilizer
We read the reviews and the return reasons for every product selling here.
“difficult to ascertain how successful it has been”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Seaweed Liquid Fertilizer questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









