The best berry fertilisers, compared.
Top pick: UK GROW fruiting plants 1 L – Highest score in this set: 4.8 from 11 reviews, berries named among fruit plants, about £10.99. No NPK on the card. Best value: Hortulani microbiological strawberry plant food 500 g – Lowest price among packs with a star line, about £7.98, at 4.0 from 34 reviews. No printed NPK, and a UK review reports no English on the packet. Updated October 2026.
Berry fertiliser on amazon.co.uk is a strawberry liquid, a berry-and-fruit granule, or a fruiting-plant bottle that names berries. It is not box foliar tablets, a six-month all-purpose tub, or a fruit-tree spike. The Royal Horticultural Society treats mulched strawberries, raspberries and currants as plants that often need no extra feed. Pots, a poor harvest and blueberries are the exceptions. Blueberries want an ericaceous feed and rainwater, not a general berry bag. Crop, form and the label are set out in the [berry fertiliser buying guide](/hub/fertiliser-soil-and-bark-mulch/berry-fertiliser/sub/berry-fertiliser-buying-guide). You are usually feeding strawberries, raspberries, currants or a mixed fruit bed. Quality is a printed crop claim, a statutory where the pack has one, a rate in grams or millilitres, and English on the bag. A star line is not a yield result. Pots are different, because peat-free compost's own feed fades in a few weeks. Do not use a general berry bag, tomato feed, manure or poultry pellets on them.
Berry fertiliser on amazon.co.uk is a strawberry liquid, a berry-and-fruit granule, or a fruiting-plant bottle that names berries. It is not box foliar tablets, a six-month all-purpose tub, or a fruit-tree spike.
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Personal buying guide
Question 1 of 2
Where are the plants?
UK GROW's 1 L fruiting-plant liquid is diluted with water and the bullets name berries, apples and tropical fruits, at £10.99 in this capture. Across 11 reviews the star line is 4.8, scaled to 96. Reviewers call it easy to mix, and one United Kingdom text describes a monthly feed. That is the highest score in this set, which is why it is the top pick here: a named fruiting job and a real star line, not a laboratory medal. The listing prints no NPK and no cap dose, so the bottle in your hand has to supply the strength. Citrus is asked on the page and not answered. Only four written reviews sit in the saved listing, so 4.8 is a thin sample rather than a deep UK verdict.
Pros
Cons
Best for: Patio fruit plants that include berries, when you want a 1 L liquid and will follow the bottle for the dose.
Less suitable: Anyone who needs a printed NPK, a strawberry-only label, or an ericaceous feed for blueberries.
Specifications
Common questions
What plants does the 1 L UK GROW bottle name?
The bullets name fruit plants including berries, apples and tropical fruits. Citrus is asked on the listing and not answered.
How do you apply it?
The listing says dilute with water. One United Kingdom review describes a monthly feed. No cap dose is printed on the card.
Does the listing print an NPK?
No. The amazon.co.uk card does not print an NPK for this bottle.
Jobe's Organics fruit and nut granules come as a 4 lb / 1.81 kg pack at £49.12, the weak import in this capture. The star line is 4.6 from 477, scaled to 92, but the saved reviews are almost all United States; none are marked United Kingdom. The mixing-ratio field is 4:6:6; one review cites NPK 3-5-5, and the listing does not reconcile them. Reviewers mention smell, split bags and clumped granules. The listing title field is recorded as 1, which is a catalog clash, not a pack size you can trust. Spread under trees or around plants is the application line, with no UK gram rate. A high star count from another country does not make this the UK top pick.
Pros
Cons
Best for: Someone who already uses this US fruit-and-nut bag and accepts the import price and US review sample.
Less suitable: A UK patio strawberry run, or anyone who wants a printed UK analysis and UK reviews.
Specifications
Common questions
What does the Jobe's listing say it is for?
Plant type and target species are fruit and nut. The form is granules. The listing title field is recorded as 1, which clashes with the 4 lb pack.
What NPK is printed?
The mixing-ratio field is 4:6:6. One review cites NPK 3-5-5. The listing does not reconcile the two figures, so this page does not treat either as a tested analysis.
Where are the saved reviews from?
The raw sample is almost all United States. None are marked United Kingdom.
UK GROW's 500 ml strawberry liquid is the smaller strawberry-labelled bottle at £9.99, with bullets naming gardens, pots, hanging baskets and greenhouses. The star line is 4.3 from 15, scaled to 86. One United Kingdom review says new strawberry plants liked the feed; that same text also appears on the 5 L sibling, so the sample is not independent. The listing asks whether the feed is organic and the bullets do not answer. No NPK and no dilution sit on the raw card. For a few pots this is a smaller outlay than the 5 L, but you still buy a crop name rather than a printed analysis.
Pros
Cons
Best for: A few strawberry pots or a hanging basket when you want a small strawberry bottle and will read the dilution on the pack.
Less suitable: Blueberries, shoppers who need a printed NPK, or anyone buying volume for many plants.
Specifications
Common questions
Is the 500 ml UK GROW bottle for strawberries?
Yes. The title and target species are strawberry. Bullets name gardens, pots, hanging baskets and greenhouses.
Does the listing say it is organic?
The listing asks whether it is organic. The bullets do not answer.
Does the listing print an NPK?
No. The amazon.co.uk card does not print an NPK or a dilution for this bottle.
The 5 L UK GROW strawberry bottle is the bulk liquid in this set at £24.99, with an item weight of 5.2 kg. Per litre it is the cheap strawberry liquid if you accept an unprinted NPK. The star line is the same 4.3 from 15 as the 500 ml, scaled to 86, and the saved listing has one United Kingdom review whose text is shared with that sibling. Dilute with water is the only application line; no cap dose is on the card. Organic is asked and not answered. Buy this when you already run many strawberry plants, not because five litres is a stronger formula than the 500 ml.
Pros
Cons
Best for: Many strawberry plants or a small tunnel when you already know the bottle's mix rate.
Less suitable: Two hanging baskets, or anyone who needs a unique UK review sample on this ASIN.
Specifications
Common questions
What size is the large UK GROW strawberry bottle?
The title and liquid volume are 5 L. The item weight is 5.2 kg.
Is the review set unique to this ASIN?
The saved listing has one United Kingdom review. The same text appears on the 500 ml sibling. Both cards show 4.3 from 15.
Does the listing print an NPK?
No. The amazon.co.uk card does not print an NPK or a dilution for this bottle.
Hortulani's 500 g strawberry powder is sold as a microbiological soil improver you mix into soil, not as a printed NPK fertiliser, at £7.98 on this amazon.co.uk capture. The listed rate is 500 g per 50 m², which is a bed-scale job rather than a capful for two hanging baskets. Across 34 reviews the star line is 4.0, scaled to 80; that is a listing statistic, not a lab result. The saved United Kingdom review says there are no English instructions on the packet, so you are buying a crop name and a coverage claim more than a followable label. The listing does not print an NPK. It is the cheapest reviewed pack in this set, which is why it carries the best-value mark: the sticker is low, and you still do not get a declared analysis or English on the bag.
Pros
Cons
Best for: A strawberry bed where you want a cheap soil additive and will read a translation or the maker's site for the method.
Less suitable: Anyone who needs a printed NPK, English on the bag, or a weekly liquid for a few pots.
Specifications
Common questions
What crop does Hortulani name?
The listing target is strawberries. Coverage is 500 g per 50 m².
Does the listing print an NPK?
No. The amazon.co.uk card does not print an NPK for this powder.
What do the saved reviews say about the packet?
The United Kingdom review says there are no English instructions on the packet.
Cultivers is a 1 kg organic vegan fruit granule with NPK 8-1-5 printed on the bullets, at £15.58. The title says fruit fertiliser; there is no berry list on the listing. The star line is 4.0 from 3, scaled to 80. The only written review is from Spain and says the delivered pack is nowhere near 1 kg. Slow and controlled release is the application claim; no grams sit in the saved listing. Humic acids and 74% organic matter are on the bullets. Treat this as a fruit granule with a printed analysis and a disputed weight, not as a blueberry or strawberry specialist.
Pros
Cons
Best for: A fruit shrub if you want a vegan 8-1-5 granule and will weigh the bag on arrival.
Less suitable: Soft-fruit specialists, blueberries, or anyone who needs a UK review sample.
Specifications
Common questions
What NPK does Cultivers print?
The bullets state NPK 8-1-5 plus 74% organic matter and humic acids.
Does the listing name berries?
No. The title is organic fruit fertiliser. There is no berry list on the listing.
What does the saved review say about weight?
The only written review is from Spain and says the delivered pack is nowhere near 1 kg.
Substral Naturen is a 1.2 kg berry-and-fruit granule at £19.43, with bullets naming strawberries, raspberries, currants, blackberries, and apple, pear and apricot trees. The listing claims one application lasts up to three months and states no animal ingredients, with zeolite in the wording. There is no star line and no written review in the saved listing, so the score stays 0. No NPK is printed on this amazon.co.uk card. No gram rate sits in the saved listing either. You are paying a mid-band sticker for a crop list and an organic-mineral story, not for a UK review sample you can quote.
Pros
Cons
Best for: A mixed berry or fruit bed if you already trust the Naturen line and will read the pack rate in your hand.
Less suitable: Shoppers who need a star line, a printed NPK on this listing, or a weekly liquid for pots.
Specifications
Common questions
Which plants does Substral Naturen name?
The bullets name strawberries, raspberries, currants, blackberries, and apple, pear and apricot trees.
How long does the listing say one application lasts?
The bullets say up to 3 months. No gram rate is in the saved listing.
Does the listing print an NPK?
No. The amazon.co.uk card does not print an NPK for this granule.
Neudorff Azet is the only pack in this set that prints an NPK on the amazon.co.uk card: organic 7-3-10, in a 1 kg bag at £11.28. The bullets name berry bushes, strawberries, wine, fruit shrubs and trees, and they state animal by-products, vegetable substances and living micro-organisms. The listing brand field is Müllers Grüner Garten Shop, not Neudorff. There is no star line and no written review in the saved listing, so the score stays 0. The thin card has no grams. The UK brand page gives tablespoon rates, which is a brand page, not this listing. Open this granule if you want a printed berry analysis and accept animal by-products, not because 7-3-10 is a measured UK winner.
Pros
Cons
Best for: A berry bed where you want a declared 7-3-10 granule and accept animal by-products.
Less suitable: Vegan shoppers, anyone who needs UK reviews on this ASIN, or a blueberry in a pot.
Specifications
Common questions
What NPK does Azet print?
The listing bullets state organic NPK fertiliser 7-3-10.
What plants does it name?
Berry bushes, strawberries, wine, fruit shrubs and trees.
Does it use animal by-products?
Yes. The bullets say animal by-products, vegetable substances and living micro-organisms.
Eight amazon.co.uk listings were scored from the stored pages and the review texts in those files. Shelf date 21 October 2026. RHS, BBC Gardeners' World, Neudorff UK and GOV.UK pages are context for crop, season and labelling. They are not a score for these packs. The number on each card is the amazon.co.uk star line scaled to 0 to 100. A missing star line stays 0. The highest score is the top pick. The best value is the lowest shelf price among packs that already have a star line. One of each. Neither mark is a yield trial. The weights below are the buying checks used to read the set. They sum to 100. They are not a second league table.
Crop match
25%Strawberry, cane fruit and currant versus blueberry. Blueberries need a pH of about 4.5 to 5.5 and an acid feed. A general berry bag is the wrong aisle for them.
Form and timing
20%A weekly liquid for pots and everbearers. One spring granule for a bed if last year's crop was poor. Mulched ground plants often need no extra feed.
Printed analysis and rate
25%An NPK and a rate in grams or capfuls on the pack you are buying. In this set only Azet prints 7-3-10 on the amazon.co.uk card. An analysis from another country's page is not copied onto a listing that omits it.
Pack size
15%About 500 ml to 1 L for a few pots. About 1 kg of granules for a bed. A 5 L bottle only if you already run many plants.
Handling and the label
15%Water dry compost first. Keep granules off crowns and canes. Store the pack away from children, pets and ponds. English on the bag is part of the buy.
Match the crop and the form before you match the star line. A strawberry liquid, a berry granule and an ericaceous feed are not one list. Prices below are amazon.co.uk shelf prices in this capture, dated 21 October 2026. This is not a laboratory test.
Berry fertiliser on amazon.co.uk is a strawberry liquid, a berry-and-fruit granule, or a fruiting-plant bottle that names berries. You are usually feeding strawberries, raspberries, currants or a mixed fruit bed. Quality is a printed crop claim, a statutory NPK where the pack has one, a rate in grams or millilitres, and English on the bag. A star line is not a yield result.
Blueberries want an ericaceous feed, rainwater and a pH of about 4.5 to 5.5. Tomato feed, manure and poultry pellets are the wrong addition. None of the eight packs here is that acid feed.
Pots want a weekly liquid. A bed, if it needs anything, wants one spring granule. Using both at a full rate in a small pot piles two feeds into one pot. Water dry compost first, and keep granules off crowns and canes.
Box foliar tablets, a six-month all-purpose tub and fruit-tree spikes are a different job. A high-nitrogen feed late in summer is the other miss. A cracked tub, or a pack with no English, is a buying problem, not proof the formula failed.
Start with the crop. Strawberries, raspberries, currants and blackberries can share a berry-and-fruit granule. Blueberries cannot. The RHS puts them at a pH of about 4.5 to 5.5 and wants an ericaceous feed and rainwater, not manure. A bag that only says fruit, such as Cultivers, is not a berry specialist. UK GROW's 1 L names berries among fruit plants. The 500 ml and 5 L bottles name strawberry, and the 500 ml bullets add pots, hanging baskets and greenhouses. Then the form.
A useful label prints an NPK and a rate. In this set only Azet prints 7-3-10 on the amazon.co.uk card. Cultivers prints 8-1-5. The UK GROW bottles, Hortulani and Substral do not print an NPK on the listing. Jobe's mixing field reads 4:6:6 and one review cites 3-5-5. Those figures are not reconciled, so neither is treated here as a tested analysis. Do not paste a German or US analysis onto a card that omits it. Oxide figures on a statutory declaration are not elemental percentages.
Three typical situations, each with a recommendation from this comparison.
Peat-free compost's own feed fades in a few weeks, so a liquid you dilute is the usual buy for pots and everbearers. UK GROW strawberry 500 ml is about £9.99 and the bullets name gardens, pots, hanging baskets and greenhouses. It is 4.3 from 15 reviews. The card prints no NPK and no dilution, so read the bottle for the mix.
Mulch in spring and buy a granule only if last year's crop was poor. Neudorff Azet 1 kg prints organic NPK 7-3-10 at about £11.28 and names berry bushes, strawberries, wine, fruit shrubs and trees. The listing brand is the shop name. There is no star line on this card, and the bullets state animal by-products.
Hortulani 500 g is about £7.98, the lowest price among packs that already have a star line, at 4.0 from 34 reviews. The listing states 500 g per 50 m² and sells it as a microbiological soil improver, not a declared fertiliser. A United Kingdom review says there is no English on the packet.
The top pick is UK GROW fruiting plants 1 L at about £10.99. It has the highest score in this set, 4.8 from 11 reviews, and the bullets name berries among fruit plants. The card prints no NPK and no cap dose. The best value is Hortulani 500 g at about £7.98, the lowest price among packs that already have a star line, at 4.0 from 34 reviews. It is a strawberry soil improver, not a declared analysis, and a United Kingdom review reports no English on the packet. Neither mark is a yield trial or a Brix result.
UK GROW fruiting plants 1 L
Highest score in this set: 4.8 from 11 reviews, berries named among fruit plants, about £10.99. No NPK on the card.
Hortulani microbiological strawberry plant food 500 g
Lowest price among packs with a star line, about £7.98, at 4.0 from 34 reviews. No printed NPK, and a UK review reports no English on the packet.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK and maker sources used for this page in October 2026. Prices, stars and review counts are from the eight amazon.co.uk listings. Shelf date 21 October 2026. A star line scaled to a score is not a laboratory test. An NPK is quoted only when that listing prints it.
Expert source (DIY & tools): Lee Burkhill (Garden Ninja) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the listings. This is not a laboratory test.
