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Best houseplant food UK

Updated: October 2026

You want one bottle for the plants already in the flat, and best houseplant food UK brings back nine different liquids. Best is not one winner. A huge review sample, a measured dose and a pour-on you do not dilute are three different jobs, and this page names a listing for each. The full price grid is the [houseplant fertiliser comparison](/hub/fertiliser-soil-and-bark-mulch/fertiliser-for-houseplants). The Products Compared editorial team compiled this on 21 October 2026 from the amazon.co.uk listings for this set. Stars are shopper ratings, not a lab test. A qualifying purchase can earn a commission at no extra cost to you.

You want one bottle for the plants already in the flat, and best houseplant food UK brings back nine different liquids. Best is not one winner.

Our top picks

Baby Bio Baby Bio Houseplant Food 175 ml

Best overall

Baby Bio Baby Bio Houseplant Food 175 ml
9.4/10about £3.99
View offer
Growth Technology Ltd Houseplant Focus 300 ml

Alternative

Growth Technology Ltd Houseplant Focus 300 ml
9.2/10about £7.44
View offer
Baby Bio Baby Bio organic 175 ml

Preis-Tipp

Baby Bio Baby Bio organic 175 ml
9.2/10about £3.99
View offer
On this page
  1. 1.Best for a mixed foliage collection
  2. 2.Same price, different complaints
  3. 3.Best when you want a measured dose
  4. 4.Best only if you will not measure
  5. 5.Listings that do not earn a shortlist

Best for a mixed foliage collection

If you have several ordinary indoor plants and you will count drops, the listing with the deepest UK review file is Baby Bio's 175 ml concentrate at £3.99. The score is 94, from 4.7 across 21,941 reviews. The bullets say 5–10 drops in half a litre, poured onto the soil. The listing ratio field prints 1:0:0, which is not an NPK. Skip it when the plant is not a general houseplant. The buying guide separates that plant-group choice from the star line.

Same price, different complaints

The other £3.99 concentrate is the organic-titled Baby Bio, 175 ml, 4.6 from 829 reviews, score 92. The dose on the listing is the same 5–10 drops in half a litre. It is the best value row because it is the cheapest bottle among every listing that scores 92, not because the word organic upgrades it. The listing names no certifier. The smell is strong, and more than one review describes a leak or drip when the bottle stands upright. Leave it if you are feeding in a small bedroom.
Baby Bio Baby Bio Houseplant Food 175 ml

Testsieger

Baby Bio Baby Bio Houseplant Food 175 ml
9.4/10about £3.99
View offer

Best when you want a measured dose

Westland's 200 ml houseplant concentrate is £6.98, with origin listed as the United Kingdom, 4.6 from 719 reviews. The bullets sell an easy measuring doser and do not state millilitres per litre. The product data do not treat the scraped 6-4-7 field as an NPK on the amazon bullets, so you confirm the analysis on the bottle. One arrival came with no cap, leaked, and was half empty. Houseplant Focus is £7.44 for 300 ml and the bullets say 5 ml in 1 litre. Choose it when you want that 5 ml line. Neither score beats the top pick.

Best only if you will not measure

If measuring is the reason you have not fed the plants, a pour-on is the honest format, and it is a worse deal per watering once the collection grows. Baby Bio Pour & Feed is £5.81 for 1 litre and the listing says no dilution. Reviewers call it a weak or watery version of the concentrate. Miracle-Gro Pour and Feed is £5.00 for 1 litre. One reviewer used most of a litre on about 15 plants after treating it as concentrate. The cost warning is the point of the concentrate or ready to use page.

Listings that do not earn a shortlist

The Miracle-Gro Baby Bio 175 ml at £6.33 does not state a dose in the bullets. The Bayer twin pack disagrees on the stated volume.

Common questions

Which bottle has the largest UK review sample?
Baby Bio's 175 ml indoor concentrate at £3.99, with 4.7 from 21,941 amazon.co.uk reviews. That is the largest count in this nine-listing set, and it is why the comparison marks it as the top pick. The next ready-to-use sample is Miracle-Gro Pour and Feed at 5,343 reviews, which is a different format. A large sample is not a feeding trial, and it does not repair a dose the bullets never printed.
Is the biggest sample the same as the best value per watering?
No. The top pick is also £3.99, so the deepest file happens to share the lowest sticker. Best value on this page is the other £3.99 concentrate, score 92 from 829 reviews, because the 94 already holds the top-pick place and this is the cheapest of the 92-score bottles. Value per watering still depends on dilution. A £5 ready litre is one litre. A drop concentrate's highlight claims up to 70 litres, which is a claim, not our measurement.
When is Westland the better fit than Baby Bio?
When you want a UK-origin 200 ml bottle with a squeeze doser and you will read the millilitres on the label, Westland at £6.98 is the closer fit. Baby Bio's £3.99 listing already states 5–10 drops in half a litre, so the doser is not an advantage if drops are clear to you. Westland's amazon bullets do not state millilitres per litre. One leaked arrival is the reason to skip it if a spoiled delivery is a real cost.
When is Houseplant Focus the better fit?
When you want 5 ml in 1 litre written on the listing, plus kelp, humic acid and fulvic acid, and a UK origin line. It is £7.44 for 300 ml, 4.6 from 1,113 reviews. It is the better fit for succulents and ferns only in the sense that reviewers mention those plants, not as a guarantee. Skip it if you need a dropper, or if a pale bottle and a mouldy lid in the reviews are unacceptable. The maker's own notes are not used here as proof of growth.
Is there a lab test behind the shortlist?
No. Scores are the amazon.co.uk star line times 20. The top pick is 4.7 from 21,941, scaled to 94. Nothing in this set is a controlled feeding trial, and a maker's greenhouse note is not borrowed as evidence. If two bottles share 4.6, the shortlist uses dose, origin, pack and complaints to separate them. Stars alone would leave six bottles in a tie.

Related pages

Fertiliser for houseplants

Houseplant fertiliser buying guide: choose a format

Houseplant feed: concentrate or ready-to-use litre

How to feed houseplants: dose, moisture and season

Feed houseplants in winter: when to pause the bottle

Sources

Public UK and maker sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the nine amazon.co.uk listings captured on 21 October 2026. Listing ratio fields are not treated as NPK. The organic word on one Baby Bio title is not a certifier. A maker analysis is the maker's statement, not an independent UK lab test.

  1. RHS, houseplants growing guide (retrieved 21 October 2026)
  2. RHS, feeding plants (retrieved 21 October 2026)
  3. Gardeners' World, how to feed house plants (retrieved 21 October 2026)
  4. GOV.UK, manufacturing and marketing fertilisers (retrieved 21 October 2026)
  5. Fertilisers Regulations 1991 (retrieved 21 October 2026)
  6. HSE, about pesticides (retrieved 21 October 2026)
  7. Westland Houseplant Feed (retrieved 21 October 2026)
  8. Morrisons, Baby Bio house plant food 175 ml (retrieved 21 October 2026)