The best citrus fertilisers, compared.
Top pick: Baby Bio citrus food 175 ml x 2 – Highest star-scale score: 5.0 from 4 reviews, year-round claim on the bullets, about £7.98. No saved texts and no printed dose. Best value: Westland citrus tree feed 200 ml – Lowest shelf price among scored citrus packs, about £6.76, with 4.5 from 1,456 reviews and a measuring doser. No NPK printed. Updated October 2026.
Citrus fertiliser is a pot-plant feed for lemon, orange, lime, kumquat and calamondin in the United Kingdom. You usually buy a small high-street liquid for a container. Sticks and granules are sold too. You tell a suitable pack by the citrus job on the label, the form you will use, and a dose the label prints. The Royal Horticultural Society treats citrus as hungry container plants that need a specialist feed all year, with a higher-nitrogen summer rhythm and a more balanced winter feed. Follow that split only when the label claims two seasons. Dilute liquid, ready foliar spray, push-in sticks and scatter granules are different jobs. Foliar spray is a top-up, not a replacement for a root drench. Read nitrogen, potassium and micronutrients only when the listing prints them. Iron, magnesium, manganese and zinc are traces a tomato feed often skips. That choice is set out on the [citrus fertiliser or tomato feed](/hub/fertiliser-soil-and-bark-mulch/citrus-fertiliser/sub/citrus-fertiliser-or-tomato-feed) page. GOV.UK says no product mark is required on fertilisers in Great Britain. Northern Ireland still uses CE.
Citrus fertiliser is a pot-plant feed for lemon, orange, lime, kumquat and calamondin in the United Kingdom. You usually buy a small high-street liquid for a container. Sticks and granules are sold too.
38 products checked · 61 hrs invested · +21,400 readers
Swipe for more
1-2 of 11
Personal buying guide
Question 1 of 2
Where does the citrus grow?
Baby Bio citrus food 175 ml × 2 is about £7.98. The bullets call it a year-round feed and say there is no need for separate summer and winter bottles. amazon.co.uk shows 5.0 from 4 reviews, the highest star line in this set. No review texts were saved. No drop or millilitre dose is printed, and no NPK is printed. The top-pick badge is that star-scale score, not a laboratory ranking and not proof this twin pack outperforms the Baby Bio listing with 353 reviews. Buy it if you wanted the year-round wording at the lower twin-pack price. Skip it if you needed a printed dose or a United Kingdom review file.
Pros
Cons
Best for: A buyer who wanted the year-round Baby Bio claim as a twin pack and accepted a four-review sample with no texts.
Less suitable: Anyone who needed a printed drop dose, an NPK, or a United Kingdom review file.
Specifications
Common questions
Is this a summer-only feed?
No. The bullets say it is a year-round feed and that there is no need for separate summer and winter feeds.
What pack size is printed?
The title is a pack of two 175 ml bottles. The unit count is 350 millilitres. The item weight is 399 g.
Are there written reviews saved?
No. amazon.co.uk shows 5.0 from 4 reviews. No review texts were saved.
COMPO Bio citrus liquid 500 ml is an organic-labelled concentrate at about £10.03. The item type prints NPK 3.1 + 0.5 + 4.1 and the mixing field is 1:10. amazon.co.uk shows 4.7 from 6,891 reviews. The 50 saved texts are from Germany, France, Italy, Spain and Belgium, not a United Kingdom survey. A bullet mentions extra potassium and use shortly before harvest. One German text calls the pourer messy. No UK certifier is named behind the Bio wording. It is the printed-analysis liquid in this set if you will dilute 1:10 and accept an EU review file, not a UK organic certificate.
Pros
Cons
Best for: Someone who wanted a 500 ml citrus liquid with a printed NPK and will dilute 1:10.
Less suitable: Anyone who needed United Kingdom review texts or a named UK organic certifier.
Specifications
Common questions
What NPK is printed?
The item type prints NPK 3.1 + 0.5 + 4.1. The mixing field is 1:10.
Are the saved reviews from the United Kingdom?
No. amazon.co.uk shows 4.7 from 6,891 reviews. The 50 saved texts are from Germany, France, Italy, Spain and Belgium.
Does Bio mean a UK organic certificate?
No UK certifier is named. The organic wording is on the title and the item-type name.
Miracle-Gro Shake n Feed citrus 4.5 lb is a citrus, avocado and mango granule at about £71.54, the dearest sticker in this set. amazon.co.uk shows 4.7 from 3,851 reviews. The 50 saved texts are marked United States, not a United Kingdom survey. The bullets say shake onto soil within the branch spread every 3 months, avoid trunks and foliage, work into the top 1–3 inches, then water. The mixing field is 13:7:13. The title does not print N-P-K words. Unit-count and liquid-volume fields clash with a 4.5 lb bag. Skip it for one conservatory lemon. It is a US-style grove bag at an import price.
Pros
Cons
Best for: Outdoor citrus, avocado or mango when you will shake granules every 3 months and accepted a £71 import.
Less suitable: One conservatory lemon, a weekly watering-can routine, or anyone who needed United Kingdom review texts.
Specifications
Common questions
How often does the listing say to reapply?
The bullets say every 3 months. Shake onto soil within the branch spread, avoid trunks and foliage, work into the top 1–3 inches, then water.
Are the saved reviews from the United Kingdom?
No. amazon.co.uk shows 4.7 from 3,851 reviews. The 50 saved texts are marked United States.
What analysis is printed?
The mixing field is 13:7:13. The title does not print N-P-K words.
Baby Bio citrus food 175 ml × 2 with 353 reviews is a separate ASIN from the twin pack at about £7.98. This listing is about £11.99. amazon.co.uk shows 4.6 from 353 reviews, with 47 United Kingdom texts, the second-deepest UK file in this set. Those texts mention orange, lemon, kumquat and mandarin. One United Kingdom review quotes 5–10 drops per half litre or one pint. The card itself prints no official dilution. The model field says NPK 8.6, which is not a three-number analysis. The unit-count field prints 175 ml on a two-bottle title. It is the Baby Bio row with a UK review file if you will count drops. It is not the cheaper twin pack and not a printed millilitre rate.
Pros
Cons
Best for: Orange, lemon, kumquat or mandarin in pots when you will count drops and wanted the deeper Baby Bio review file.
Less suitable: Anyone who wanted the cheaper twin pack, a printed millilitre rate, or a three-number NPK.
Specifications
Common questions
Is this the same listing as the £7.98 twin pack?
No. This is a separate ASIN at about £11.99, with 4.6 from 353 reviews. The other twin pack is about £7.98, with 5.0 from 4 reviews.
What dose is printed?
No official dilution is printed on the card. One United Kingdom review quotes 5–10 drops per half litre or one pint.
Does the model field give an NPK?
The model field prints NPK 8.6. That is not a three-number analysis. No usable NPK is printed.
Cultivers organic citrus 1 kg is organic-labelled microgranules at about £15.53, naming lemon, orange and grapefruit. amazon.co.uk shows 4.6 from 29 reviews, with one United Kingdom text saved. A bullet prints NPK +74% M and the mixing field is 1:0:0, so there is no usable analysis. The instruction is to spread on the label dose and keep granules away from the trunk. No certifier is named behind the 100% organic line. It is a mid-size granule if you will follow the pack chart and keep a trunk gap, not a printed NPK liquid.
Pros
Cons
Best for: A lemon, orange or grapefruit in a pot when you will spread granules away from the trunk.
Less suitable: Anyone who needed a usable three-number NPK or a deep United Kingdom review file.
Specifications
Common questions
Is a usable NPK printed?
No. A bullet prints NPK +74% M and the mixing field is 1:0:0. That is not a clean three-number analysis.
How do you apply it?
Spread on the label dose and keep the granules away from the trunk.
How many United Kingdom review texts are saved?
One. amazon.co.uk shows 4.6 from 29 reviews.
The Baby Bio bundle pairs a citrus concentrate with original house plant food at about £11.08. Product 1 bullets say there is no need for a separate summer and winter citrus feed. amazon.co.uk shows 4.6 from 3 reviews, and no texts were saved. Millilitre sizes are not printed, and no NPK is printed. The listing asks about outdoor plants while the bullets only name the house or conservatory. It is a two-bottle order if you wanted citrus and houseplant food together. Skip it if you needed a printed volume or a review sample.
Pros
Cons
Best for: A house or conservatory with citrus and other houseplants, when you wanted both bottles in one order.
Less suitable: Anyone who needed printed millilitre sizes, an outdoor-only feed, or a review sample.
Specifications
Common questions
Does the citrus bottle claim a separate winter feed?
Product 1 bullets say there is no need for a separate summer and winter citrus feed.
What sizes are printed?
Millilitre sizes are not printed on this card. The unit count is 1.
Are there written reviews saved?
No. amazon.co.uk shows 4.6 from 3 reviews. No review texts were saved.
Jobe's Organics fruit and citrus 4 lb is a granule at about £36.79, with 3-5-5 printed on the title and bullets. amazon.co.uk shows 4.5 from 4,659 reviews. The saved texts are from the United States and Canada, not the United Kingdom. Several of those texts call the smell strong or like manure, and one warns against indoor use. The OMRI listed and USDA organic line is a US scheme, not a UK certificate. Reviews describe scattering granules and mixing them into the top inches of soil. It is an import granule for an outdoor fruit tree if you can live with the smell and the price, not a 200 ml conservatory bottle.
Pros
Cons
Best for: An outdoor fruit or citrus tree when you will scatter 3-5-5 granules and accepted a US review file.
Less suitable: A conservatory lemon, anyone sensitive to manure smell indoors, or a shopper who wanted a UK organic mark.
Specifications
Common questions
What NPK is printed?
3-5-5 is printed on the title and the bullets.
Are the saved reviews from the United Kingdom?
No. amazon.co.uk shows 4.5 from 4,659 reviews. The saved texts are from the United States and Canada.
Is OMRI a UK organic certificate?
No. OMRI and USDA organic wording on the listing is a United States scheme.
Westland citrus tree feed 200 ml is a United Kingdom liquid you dilute with the measuring doser, at about £6.76. amazon.co.uk shows 4.5 from 1,456 reviews, with 50 United Kingdom texts, the deepest UK sample in this set. Those texts often mention greener lemon and orange leaves and the doser. One describes a pre-pour mixed into 1 litre of water. The mixing field is 1:900. No NPK is printed. Recurring complaints are the small 200 ml pack, a spout that failed on one bottle, and one review title that says it killed a lemon tree without stating a dose. It is the best value here for a named citrus drench with a UK review file, not a printed analysis and not a winter-only powder.
Pros
Cons
Best for: One conservatory lemon or orange when you will use the doser and wanted the cheapest UK-reviewed liquid in this set.
Less suitable: Anyone who needed a printed NPK, a 500 ml bottle, or a winter-only powder.
Specifications
Common questions
Does Westland print an NPK on this listing?
No. The listing does not print an NPK. The bullets mention essential nutrients and trace elements without numbers.
How do you apply the 200 ml concentrate?
The bullets name a measuring doser. The mixing field is 1:900. One United Kingdom review describes a pre-pour mixed into 1 litre of water.
What do the saved reviews say?
Fifty United Kingdom texts. Recurring praise is greener lemon and orange leaves and the doser. Criticisms include a small 200 ml pack, a spout that failed on one bottle, and one title that says it killed a lemon tree.
Devonia citrus and fruit sticks 18 is a push-in feed for indoor and outdoor pots at about £7.99. The bullets say the sticks last up to 12 weeks and to replace them on that interval. amazon.co.uk shows 4.5 from 2 reviews, and no texts were saved. The brand field is Generic. The manufacturer is Devonia London and the country of origin is Germany. No usable NPK is printed. The mixing field shows 1:1:1. The unit-count field prints 18.0 gram against an 18-stick title. It is the no-measure row if you will push sticks below the soil line and still water as usual, not a weekly watering-can drench.
Pros
Cons
Best for: Indoor or outdoor citrus pots when you will push sticks below the soil line and will not measure a weekly jug.
Less suitable: Anyone who wanted a named UK brand, a printed NPK, or a watering-can concentrate.
Specifications
Common questions
How long does the listing say the sticks last?
The bullets say up to 12 weeks, and to replace them on that interval.
Who is the brand on the listing?
The brand field is Generic. The manufacturer is Devonia London. The country of origin is Germany.
Does the listing print an NPK?
No usable analysis is printed. The mixing field shows 1:1:1.
UK GROW citrus foliar spray 300 ml is a ready-to-use spray at about £9.99. The listing is filed under hydroponic nutrients. It tells you to spray leaves and branches. There is no root-drench instruction. amazon.co.uk shows 4.2 from 6 reviews, with two United Kingdom texts that mention a lemon looking healthier. No NPK is printed. A bullet about organic plant extracts and pest resistance is manufacturer copy, not a test. It is a leaf-and-branch top-up if you already feed at the roots, not a replacement for a watering-can concentrate.
Pros
Cons
Best for: A citrus pot that already has a root feed, when you wanted a ready leaf-and-branch spray.
Less suitable: Anyone treating foliar spray as the only feed, or who needed a printed NPK drench.
Specifications
Common questions
Is this a root feed?
No. The listing tells you to spray leaves and branches. There is no root-drench instruction on the card.
What NPK is printed?
None. No NPK is printed.
What do the saved reviews say?
amazon.co.uk shows 4.2 from 6 reviews. Two United Kingdom texts mention a lemon looking healthier.
yanzisura citrus concentrate 100 ml is a generic citrus concentrate at about £4.89, naming oranges, lemons, mandarins and limes. The card has no customer-reviews line, so the score is 0. No NPK and no dilution ratio are printed. One bullet also calls it a leaf spray. The country of origin is China. The title spelling is Citruse Focus / Citruse Trees. It is the cheapest sticker in this set only if you will accept a bottle with no stars, no texts and no rate. It is not a named UK high-street feed.
Pros
Cons
Best for: A buyer who only wanted the lowest sticker and will wait for a printed ratio on the pack.
Less suitable: Anyone who needed a star line, a dilution, or a named United Kingdom brand.
Specifications
Common questions
Is there an Amazon rating?
No. The card has no customer-reviews line, so there is no star rating and no review count.
What dilution is printed?
None. The listing does not print a dilution ratio. One bullet also calls it a leaf spray.
Which plants does the title name?
Oranges, lemons, mandarins and limes. The title spelling is Citruse Focus / Citruse Trees.
Eleven amazon.co.uk listings were scored from the stored pages. Shelf date 21 October 2026. There is no laboratory test. The score on each row is the amazon.co.uk star rating multiplied by 20, so 5.0 becomes 100 and a missing star line stays 0. Royal Horticultural Society pages are context for the summer and winter calendar. They are not a score for these packs. The top pick is the highest of those scores. The best value is the lowest shelf price among packs with a score above 0 and a usable citrus job. The 100 ml bottle with no star line is left out of that value pick. The top pick is 5.0 from 4 reviews and has no saved texts. The best-value liquid has no NPK on the card. Neither badge is a feeding trial. The weights below sum to 100. They explain the two badges. They do not replace the star-scale score.
Amazon star line
70%The number beside each product is the amazon.co.uk star rating times 20. Nothing else changes that number. 5.0 from 4 reviews becomes 100. A missing star line stays 0. A large count on EU or US texts is not a United Kingdom survey.
Shelf price for the value badge
30%The best value is the lowest shelf price among packs with a score above 0 and a usable citrus job. The 100 ml bottle with no star line is excluded. This rule names the badge. It does not change the star score.
Match the citrus job, the form and a printed dose before you match the star line. Prices on this page are amazon.co.uk shelf prices on 21 October 2026. This is not a laboratory test.
Citrus fertiliser in the United Kingdom is a feed for lemon, orange, lime, kumquat and calamondin in pots. Quality is a citrus-named formula with a dose you can follow and, where the listing prints them, nitrogen, potassium and micronutrients. Iron, magnesium, manganese and zinc are the traces a tomato feed often skips. The usual UK buy is a small liquid. Sticks and granules are sold as well. Bags measured in pounds appear at import prices. Match the job on the title first.
The Royal Horticultural Society lists wet or dry roots, draughts, cold and hunger as causes of yellowing. A yellow leaf is not a reason to double the dose.
Mottled yellow between the veins can follow a tomato feed that skips iron, magnesium, manganese and zinc. Use a citrus-named formula when you need those traces or a printed analysis the tomato bottle does not show.
A weekly summer dose in a dark, cool room, granules against the trunk, and foliar spray as the only feed are separate mistakes. Ask a professional about black soft roots, or scale and mite that survive home treatment. If you suspect poisoning, take the pack to a doctor or a vet.
The title has to name citrus, or citrus plus fruit. Dilute liquid, ready foliar spray, 12-week sticks and scatter granules are different jobs. Foliar spray does not replace a root drench. A boxwood product is the wrong aisle.
Follow a summer and winter split only when the label claims it. A year-round bullet is a different product. Print an NPK only when the card shows one. Westland and the 100 ml bottle have none. COMPO prints 3.1 + 0.5 + 4.1, Jobe's prints 3-5-5, and the Miracle-Gro mixing field is 13:7:13. COMPO's saved texts are EU. Jobe's and Miracle-Gro texts are United States. Westland and one Baby Bio twin pack have United Kingdom texts.
Three typical situations, each with a recommendation from this comparison.
You move one pot indoors and want a named citrus bottle. Baby Bio citrus food 175 ml × 2 is the top pick at about £7.98 because the bullets say year-round, with 5.0 from 4 reviews and no saved texts. Westland 200 ml at about £6.76 is the best value if you want the doser and 50 United Kingdom texts. Neither card prints an NPK.
A seed orange on a windowsill needs a method more than a 4 lb import. Westland citrus tree feed 200 ml at about £6.76 is the UK-reviewed liquid in this set, 4.5 from 1,456 reviews. Water first, empty the saucer, and do not double the dose because a leaf is yellow. The Royal Horticultural Society lists wet roots, dry roots, draughts, cold and hunger as causes of yellowing.
COMPO Bio 500 ml at about £10.03 prints NPK 3.1 + 0.5 + 4.1 and Bio wording, with no UK certifier named. The 6,891-review star line sits on EU texts. Jobe's Organics prints OMRI and USDA wording, which is a US scheme, at about £36.79. Cultivers says 100% organic and names no certifier. None of those lines is a UK organic certificate.
The top pick is Baby Bio citrus food 175 ml × 2 at about £7.98. The score is 5.0 from 4 amazon.co.uk reviews, the highest star line in this set, and the bullets call it a year-round feed with no separate summer and winter bottles. There are no saved review texts, no printed drop dose and no NPK. That badge is the star-scale score, not a feeding trial and not proof it outperforms the Baby Bio listing with 353 reviews. The best value is Westland citrus tree feed 200 ml at about £6.76, the lowest shelf price among packs with a score above 0 and a usable citrus job. It is 4.5 from 1,456 reviews, with 50 United Kingdom texts, a measuring doser and a mixing field of 1:900. No NPK is printed. The 100 ml bottle at about £4.89 has no star line, so it is not the best value. None of these scores is a laboratory test.
Baby Bio citrus food 175 ml x 2
Highest star-scale score: 5.0 from 4 reviews, year-round claim on the bullets, about £7.98. No saved texts and no printed dose.
Westland citrus tree feed 200 ml
Lowest shelf price among scored citrus packs, about £6.76, with 4.5 from 1,456 reviews and a measuring doser. No NPK printed.
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 sources used for this page in October 2026. Prices, stars and review counts are from the eleven amazon.co.uk listings captured on 21 October 2026. A year-round line, an NPK and an organic wording are listing claims. OMRI and USDA are US schemes. This is not a laboratory test and not a feeding trial.
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.
