The best orchid fertilisers, compared.
Top pick: Westland orchid plant feed concentrate, 200 ml – Highest score: 4.6 from 519 reviews, scaled from the star line, on a 200 ml bottle with a squeeze doser, at about £7.58. Best value: Orchid Focus Grow, 100 ml – Lowest price among concentrates whose bullets print a millilitre rate: about £3.35, 5 ml in 2 litres, and a no-urea line. Updated October 2026.
An orchid fertiliser is a specialist plant food for an orchid growing in coarse bark. Bark holds little nutrient, so a light feed is part of ordinary care while the plant is growing. In the UK the usual plant is a moth orchid on a warm windowsill. You want a declared feed and a dose you can follow, rather than a vague plant-food line with no analysis. The format is the next check. A liquid concentrate gives a millilitre rate you measure into water. A ready-to-use drip is a small vial pushed into the pot, and you still water as usual. A foliar mist is a spray for the leaves, not a root drench. The Royal Horticultural Society says to use a specific orchid fertiliser lightly in the growing season, to give plain water every fourth watering so salts can flush out, and to feed only sparingly, if at all, in winter. Keep liquid out of the crown. How those formats differ on a windowsill is set out in the [orchid fertiliser buying guide](/hub/fertiliser-soil-and-bark-mulch/orchid-fertiliser/sub/orchid-fertiliser-buying-guide).
An orchid fertiliser is a specialist plant food for an orchid growing in coarse bark. Bark holds little nutrient, so a light feed is part of ordinary care while the plant is growing.
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Personal buying guide
Question 1 of 2
Will you measure a dose?
The Westland 200 ml orchid concentrate is a squeeze-doser bottle at about £7.58. Amazon.co.uk shows 4.6 from 519 reviews, the highest score in this comparison, drawn from the first 40 UK texts. Reviews describe squeezing the bottle to fill the top, and one text calls that a 5 ml line. The mixing-ratio field on the listing is 1:5, and this page does not print a 5 ml per litre sentence. Westland's own page states 5 ml per litre and NPK 6-3-6. UK reviews say to water first, because the mix can burn roots on a dry pot, and the cap can be hard to control. It is the top pick for a measured jug you can refill for months. It is a poor fit if you will not measure, or if you need the NPK printed on the amazon listing itself.
Pros
Cons
Best for: You have one or more orchids, you will water first, then squeeze a measured dose into a jug.
Less suitable: You will not measure, or you need a printed NPK on the amazon listing itself.
Specifications
Common questions
How do you measure a dose?
The listing names an easy measuring doser. Reviews describe squeezing the bottle to fill the top. One text calls that a 5 ml line. The mixing-ratio field is 1:5, and this amazon.co.uk listing does not print a 5 ml per litre sentence. Westland's own page states 5 ml per litre.
Does the amazon.co.uk listing print an NPK?
No. This listing does not print an NPK. Westland's product page states NPK 6-3-6 for the concentrate.
What do the UK reviews warn about?
Water first. One text says the mix can burn roots if it is used on a dry pot. The cap can be hard to control.
The Doff orchid drip pack is ten ready-to-use 30 ml bottles at about £6.01. The listing says to insert the tube into moistened soil and replace it about every 15 days. Amazon.co.uk shows 4.5 from 1,972 reviews, the deepest sample here, and the first 50 UK texts were read. Those texts split between ease and flowers on one side, and a tube that does not drip, empties in a day, blocks with soil or leaks in transit on the other. The mixing-ratio field is 1:0:0, which is not a usable dose, and the listing does not print an NPK. A bullet says made in the UK. It is the deepest-reviewed drip option when you will not measure, if you look the next morning rather than treat the 15-day line as a measured fact.
Pros
Cons
Best for: You have several orchids, you will not measure, and you will still water as usual.
Less suitable: You need a printed millilitre rate, or you wanted a vial as a holiday waterer.
Specifications
Common questions
How do you use the Doff drip bottles?
The listing says insert the tube into moistened soil and replace it about every 15 days. Reviews describe cutting the tip and inverting the bottle. You still water as usual. The 15-day line is a listing claim, not a measured run.
Does the listing print an NPK?
No. The mixing-ratio field is 1:0:0, which is not a usable dose. The listing does not print an NPK.
What do the first 50 UK reviews repeat?
Ease and flowers on one side. On the other, the tube does not drip, empties in a day, blocks with soil, or leaks in transit. Check a new vial the next morning.
Orchid Focus Bloom, 100 ml, is a liquid concentrate worded for flowering at about £3.99, with the same 5 ml in 2 litres line and a no-urea bullet. Amazon.co.uk shows 4.5 from 148 reviews. UK texts praise rebloom and a soak-then-drain mix. Several note that the 100 ml bottle is small, and one text says too much kills the plant. The listing's specific-use field is flowering promotion. Reviews also mention a house plant and jasmine, which are reviewer uses, not listing claims. The bullets name higher phosphorus and potassium and do not print a full analysis. Buy it if you wanted the bloom wording of the same Focus mix. Skip it if you needed a larger bottle or a ready-to-use drip.
Pros
Cons
Best for: You have a flowering moth orchid, you will measure the printed 5 ml in 2 litres, and you wanted the bloom wording.
Less suitable: You will not measure, or you wanted a single larger bottle without switching Grow and Bloom.
Specifications
Common questions
How does the listing say to mix Orchid Focus Bloom?
The bullets say add 5 ml in 2 litres of rainwater or tap water and mix well. The mixing-ratio field is 1:400. Growth Technology pages for other markets state 5 ml per litre. Follow the label on the bottle you hold.
What plants does the listing name?
Orchids. The specific-use field is flowering promotion. Reviews also mention a house plant and jasmine. Those are reviewer uses, not listing claims.
What comes up in the review sample?
UK texts praise rebloom and a soak-then-drain mix. Several note that the 100 ml bottle is small. One text says too much kills the plant.
The Baby Bio orchid drip pack is four ready-to-use 40 ml feeders at about £8.50. The listing says to invert the feeder into the pot and claims up to 30 days. Amazon.co.uk shows 4.5 from 36 reviews, and 13 UK texts were read. Those texts call the pack easy and mention orchids flowering or rescued. This thin sample has no dump-or-block complaint. The title is a four-pack. The unit-count and liquid-volume fields both print 40 ml. The mixing-ratio field is 1:0:0, and the listing does not print an NPK. It is a small drip pack if you wanted the Baby Bio name and will still water as usual. It is not a measured concentrate, and the 30-day line is not a measured fact.
Pros
Cons
Best for: You have a few orchids, you wanted a Baby Bio drip, and you will still water as usual.
Less suitable: You need a printed millilitre rate, or a ten-pack with a deeper review sample.
Specifications
Common questions
How do you use the Baby Bio drips?
The application field says invert the feeder into the soil of the plant. The bullets claim each feeder lasts up to 30 days. That duration is a listing claim. You still water as usual.
Do the pack figures agree?
The title is a pack of four 40 ml feeders. The unit-count and liquid-volume fields both print 40 ml. Both figures are copied as printed.
What do the 13 UK texts say?
They call the pack easy and no mess, and mention orchids flowering or rescued. This thin sample has no dump-or-block complaint. Thirteen texts are not a large UK verdict.
The ZOPPER orchid drip pack is ten ready-to-use vials at about £8.97. The bullets say invert the feeder into a hanging basket, tub or orchid pot, and claim 15 days per vial. Amazon.co.uk shows 4.4 from 136 reviews, and 15 UK texts were read. Several of those texts say the vial dumped in a day or did not drip, and two say an orchid died. The title is a 10-pack. The unit-count field is 1 count. The mixing field is 1:0:0, which is not a dose, and the listing does not print an NPK. Treat it as a no-measure ten-pack only if you will check the next morning.
Pros
Cons
Best for: You have several pots, you will not measure, and you will look at each vial the next morning.
Less suitable: You need a printed millilitre rate, or you wanted a drip sample without dump-or-kill texts.
Specifications
Common questions
How do you use the ZOPPER drips?
The bullets say invert the feeder into a hanging basket, tub or orchid pot. Each feeder is claimed as a 15-day supply. That duration is a listing claim. Check the vial the next morning.
Does the pack field match the title?
The title is a 10-pack. The unit-count field is 1 count. The liquid-volume field prints 30. Both figures are copied as printed.
What do the 15 UK reviews repeat?
Ease on one side. Several texts say the vial dumped in a day or did not drip, and two say an orchid died. Those texts are not a measured cause.
UK Grow orchid mist is a 5 litre ready-to-use foliar refill at about £19.95. The listing says a light spray once a week. Amazon.co.uk shows 4.4 from 81 reviews, and 42 UK texts were read. Reviewers mention the refill price and healthier plants. Several cannot open the cap, and others mention smell, leaf residue or a coarse spray after decanting. The included line is the 5 litre bottle, not a spray bottle. The listing names Phalaenopsis, Cymbidium, Dendrobium, Miltonia and many more. A bullet says made in the UK. The mixing field is 1:0:0, which is not a dose. It is a foliar refill if you already decant spray and can open the cap. It is not a root-drench concentrate for one moth orchid.
Pros
Cons
Best for: You keep a bench of orchids, you already decant a weekly foliar spray, and you can open the cap.
Less suitable: You have one moth orchid that needs a measured root drench, or you have no spray bottle.
Specifications
Common questions
Is this a concentrate you dilute?
No. The listing is a ready-to-use 5 litre foliar mist. It says a light spray once a week. The included line is the 5 litre bottle, not a spray bottle.
Which orchids does the listing name?
Phalaenopsis, Cymbidium, Dendrobium, Miltonia and many more. A bullet says made in the UK. The listing does not print an NPK.
What do the 42 UK reviews repeat?
The refill price and healthier plants on one side. Several texts cannot open the cap. Others mention smell, leaf residue or a coarse spray after decanting.
The Westland orchid droplet pack is four ready-to-use 40 ml feeders at about £5.20, with no measuring and a listing claim of 4 weeks. Amazon.co.uk shows 4.4 from 62 reviews, and 12 UK texts were read. The title and liquid-volume field give 160 ml. The unit-count field prints 640 ml. Reviews say a week, or that the tip emptied faster if cut low, plus dumping and one text that says it killed the plant. There is no mix rate and no stated analysis. It is a no-measure four-pack if you will check the vial the next morning. It is not a printed millilitre concentrate.
Pros
Cons
Best for: You have a few orchids, you will not measure, and you will look at each vial the next morning.
Less suitable: You need a printed millilitre rate, or you treat the 4-week claim as a measured fact.
Specifications
Common questions
How long does the listing say one droplet lasts?
The bullets say it feeds plants for 4 weeks. Reviews say a week, or that the tip emptied faster if cut low. The 4-week line is a listing claim, not a measured run.
Do the pack figures agree?
The title is 4 × 40 ml and the liquid-volume field is 160 ml. The unit-count field is 640 ml. Both figures are copied as printed.
What do the saved reviews complain about?
Dumping too fast, cutting the capsule too low, and one text that says it killed the plant. Check a new vial the next morning.
Orchid Focus Grow, 100 ml, is a liquid concentrate at about £3.35. The amazon.co.uk bullets state 5 ml in 2 litres and say the feed contains no urea. Across 83 reviews the star line is 4.3. Several UK texts call the 100 ml bottle smaller than expected, though one says a bottle lasted more than a year for 16 to 20 orchids at a small dose. The mixing-ratio field is 1:400, which matches 5 ml in 2 litres. The bullets mention high nitrogen and do not print a full analysis. Growth Technology pages for other markets state 5 ml per litre, so follow the label on the bottle you hold. It is the best value when you wanted a printed millilitre rate at the lowest price here. It is not a drip vial and not a 5 litre mist.
Pros
Cons
Best for: You have one or two orchids, you will measure 5 ml in 2 litres, and you wanted the cheapest printed rate here.
Less suitable: You will not measure, or you wanted a 200 ml jug or a ready-to-use drip.
Specifications
Common questions
How does the listing say to mix Orchid Focus Grow?
The bullets say add 5 ml in 2 litres of rainwater or tap water and mix well. The mixing-ratio field is 1:400. Growth Technology pages for other markets state 5 ml per litre. Follow the label on the bottle you hold.
Does the listing mention urea?
Yes. The bullets say Orchid Focus contains no urea, which can damage epiphytic orchids. That line is not printed on the other eight listings here.
What do the saved reviews say about the bottle size?
Several UK texts call the 100 ml bottle smaller than expected. One text says a bottle lasted more than a year for 16 to 20 orchids at a small dose.
The Topline bundle is 10 litres of peat-free pine-bark compost plus a 175 ml orchid flower-food bottle and a card, at about £14.99. Amazon.co.uk shows 4.3 from 66 reviews, and 8 UK texts were read. The listing does not print a mix rate for the bottle. One review describes diluting the feed in a spray bottle, which is a reviewer method, not a listing rate. The title includes the words Miracle Grow. The brand and manufacturer fields say Topline. The listed weight is 4.23 kg. It is a repotting pack with a small bottle attached. It is not a stronger fertiliser because the sticker is higher, and it is not a printed 5 ml recipe.
Pros
Cons
Best for: You have a moth orchid that needs new bark and a small feed bottle in the same order.
Less suitable: You only needed fertiliser, or you required a printed millilitre rate on the bottle.
Specifications
Common questions
Is this only a fertiliser?
No. The listing is 10 litres of peat-free pine-bark compost plus a 175 ml orchid flower-food bottle and a Topline card. The bark is potting medium. The bottle is the fertiliser.
Does the listing print a mix rate for the bottle?
No. One review describes diluting the feed in a spray bottle. That is a reviewer method, not a listing rate.
Does the title name Miracle Gro?
The title includes the words Miracle Grow. The brand and manufacturer fields say Topline. The two names are copied as printed.
Vitax orchid bloom feed is titled as a 500 ml concentrate at about £8.14. Amazon.co.uk shows 3.7 from 3 reviews, and the file has no review texts. The product data does not state a dose, a brand field, a manufacturer, an item weight or an analysis. The title names orchids and bloom feed. That is the plant line, not a printed mix rate. With only three ratings and no saved texts, you cannot treat the star line as a UK verdict. Skip it if you needed a millilitre rate or a review sample. The larger bottle is not proof of a stronger feed.
Pros
Cons
Best for: You already know the Vitax bottle rate from another pack and only wanted 500 ml.
Less suitable: You need a printed mix rate, a brand field on the listing, or a UK review sample.
Specifications
Common questions
Does the listing state a mix rate?
No. The product data does not state a dose, a brand field, a manufacturer or any review text. The title says bloom feed concentrate, 500 ml.
What plants does the listing name?
Orchids. The title says bloom feed concentrate, 500 ml. That plant line is not a printed mix rate.
Ten amazon.co.uk listings were scored from the stored pages and the UK review notes already on file. Shelf date 19 October 2026. There is no laboratory test. The score on each card follows that listing's star line. A replace-every-15-days line, a four-week drip claim and a no-urea bullet are the seller's words. Where two pack figures disagree, both stay. The highest score is the top pick. The best value is the lowest price among concentrates whose bullets print a millilitre rate, and it does not also take the top score. The weights below sum to 100.
Star line
50%The card score follows the amazon.co.uk star line in the stored listing. Westland 200 ml is 4.6 from 519 reviews. Vitax is 3.7 from 3 reviews, with no review texts on file, so that star line is not treated as a UK verdict.
UK review notes
25%Saved UK texts are read for a repeated complaint: a vial that dumps or blocks, a root burn on a dry mix, a cap that will not open, or a bottle called smaller than expected. One text is not a measured cause. A thin file is named as thin.
Listing clarity
25%A printed millilitre rate, a clear format, and a pack size that agrees with itself rank higher. A mixing field of 1:0:0 is not a dose. A unit count that clashes with the title is a deduction. A no-urea line is recorded only where the bullets say it.
Choose the format before you choose the star line. A concentrate, a drip vial, a foliar mist and a bark-and-feed bundle are not one ladder. Prices are amazon.co.uk shelf prices on 19 October 2026. This is not a laboratory test.
Orchid fertiliser on amazon.co.uk is a specialist feed for an orchid in bark, which holds little nutrient. The usual UK plant is a Phalaenopsis, a moth orchid, on a windowsill. Quality is a stated dose, a declared feed rather than a vague plant-food line, and a format you can control. Four jobs sit in these ten listings. A liquid concentrate is measured into water. Westland's 200 ml bottle, about £7.58, has a squeeze doser.
Doff says you still water as usual. UK reviews of Doff, ZOPPER and the Westland droplets describe a vial that empties in a day or does not drip. A duration on the listing is a claim.
Only Orchid Focus Grow and Bloom state no urea on the amazon bullets. The other eight listings do not. Do not treat a missing line as a promise.
A 100 ml concentrate, 10 litres of bark plus a small bottle, and a 5 litre mist are different purchases. Compare diluted litres only when a dilution is printed.
Choose the job before the brand. A concentrate gives a millilitre rate. Focus Grow and Focus Bloom print 5 ml in 2 litres on the amazon bullets, and the mixing field is 1:400. Growth Technology pages for other markets state 5 ml per litre. Westland's amazon listing prints 1:5 and a squeeze doser, and does not print a 5 ml per litre sentence. Westland's own page states 5 ml per litre and NPK 6-3-6. Vitax prints no dose.
Only the two Focus bullets state no urea. Do not copy that onto Westland, Doff, Baby Bio, ZOPPER, Vitax, Topline or UK Grow. The Royal Horticultural Society says to feed a moth orchid lightly while it is growing, to give plain water every fourth watering, and to feed sparingly or not at all in winter. Keep liquid out of the crown. Doff (1,972 reviews), ZOPPER and the Westland droplets draw the same complaint in the UK texts: the tip blocks, or the bottle empties in a day.
Three typical situations, each with a recommendation from this comparison.
You will measure a dose into a jug and flush with plain water. The Westland 200 ml concentrate is the top pick at about £7.58, with 4.6 from 519 reviews and a squeeze doser. The amazon listing's mixing field is 1:5. Westland's own page states 5 ml per litre. Water first, so the mix does not sit on dry roots.
You will not measure, and you will still water as usual. Doff's ten 30 ml drips are the deepest-reviewed drip option at about £6.01, with 4.5 from 1,972 reviews. The listing says about fifteen days. UK texts also describe a tube that dumps, blocks or does not drip. Look the next morning.
You need new bark and a small feed in one parcel. The Topline bundle is 10 litres of peat-free pine-bark compost plus 175 ml of flower food at about £14.99, with 4.3 from 66 reviews. The bottle has no printed mix rate. The title says Miracle Grow and the brand field says Topline. It is not a stronger feed because the sticker is higher.
The top pick is the Westland orchid plant feed concentrate, 200 ml, at about £7.58. It has the highest score here, 4.6 from 519 reviews, and a squeeze doser on a 200 ml bottle. The amazon listing's mixing field is 1:5 and does not print an NPK. Westland's own page states 5 ml per litre and NPK 6-3-6. The best value is Orchid Focus Grow, 100 ml, at about £3.35, the lowest price here, with a printed 5 ml in 2 litres and a no-urea bullet, at 4.3 from 83 reviews. Doff is the deepest-reviewed drip, and that 15-day line is a claim. A higher sticker on the bark bundle or the 5 litre mist is not a stronger root feed. None of these scores is a laboratory test.
Westland orchid plant feed concentrate, 200 ml
Highest score: 4.6 from 519 reviews, scaled from the star line, on a 200 ml bottle with a squeeze doser, at about £7.58.
Orchid Focus Grow, 100 ml
Lowest price among concentrates whose bullets print a millilitre rate: about £3.35, 5 ml in 2 litres, and a no-urea line.
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 from the research digest, used for this page in October 2026. Prices, stars and review counts are from the ten amazon.co.uk listings captured on 19 October 2026. A drip duration is a listing claim. A no-urea line is recorded only where the bullets say it. Westland's NPK is from the maker's page, not from the amazon listing. This is not a laboratory test.
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.
