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Best palm compost UK

Updated: October 2026

You want one bag for a palm, and the amazon.co.uk stars pull in two directions: 4.5 from thousands of reviews, or 5.0 from a single line. Best palm compost UK, on this page, means the sensible named bag inside this comparison, plus a clear skip. A kentia or a parlour palm is a different question from which of these five bags you can actually compare. The prices and scores are on the [palm soil comparison](/hub/trees-and-palms/palm-soil). Products Compared scored the five amazon.co.uk listings on 20 October 2026. We did not run a compost trial. A qualifying purchase can earn us a commission at no extra cost to you.

You want one bag for a palm, and the amazon.co.uk stars pull in two directions: 4.5 from thousands of reviews, or 5.0 from a single line.

Our top picks

Invigortex Invigortex houseplant mix, 3 litre title

Best overall

Invigortex Invigortex houseplant mix, 3 litre title
5.5/10about £8.99
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COMPO COMPO Sana palm compost, 10 litres

Rank 2

COMPO COMPO Sana palm compost, 10 litres
9.2/10about £26.84
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COMPO COMPO Sana palm earth, 5 litres

Best value

COMPO COMPO Sana palm earth, 5 litres
8.6/10about £20.59
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On this page
  1. 1.What this page can call best
  2. 2.COMPO 10 litres, if you need the volume
  3. 3.COMPO 5 litres, when one small pot is the job
  4. 4.Why the 5.0 houseplant mix is not the pick

What this page can call best

Best, here, is conditional. It applies only to the five bags in this comparison: COMPO Sana at 5 litres and at 10 litres, and three sizes of Invigortex houseplant mix. Lechuza PALMPON and Allgood Farm are not in this table, so neither is the pick. Best also does not mean peat-free. Every listing leaves peat unmarked. The scores use the shelf price, the star line, whether title and specification agree, and what UK review texts say. A 5.0 from one review does not beat a 4.5 from thousands. On that method the COMPO 10 litre bag, at £26.84, is the top pick when you need about that volume. The COMPO 5 litre bag, at £20.59, is the best value when one small pot will not use 10 litres. The checks are on the palm soil buying guide.

COMPO 10 litres, if you need the volume

Model 11431 is named for green plants and palms. Title and specification both say 10 litres, at 3.92 kg. At £26.84 that is about £2.68 a litre. The bullets state 8 weeks of nutrition. The amazon.co.uk line is 4.5 from 8,462 reviews, and 23 of the first 50 texts say they were reviewed in the United Kingdom. A UK reviewer with a palm in a pot wrote that the plant loved the compost. Another found the perlite short and added bark and more perlite. UK reviews also report flies. The RHS, where air is the only job, prefers grit or gravel. Skip this bag for a parlour palm on the RHS Chamaedorea recipe, a light ericaceous mix, which is compost for an indoor palm. Skip it if you will not add drainage, or if 10 litres is more than the pot.
Invigortex Invigortex houseplant mix, 3 litre title

Testsieger

Invigortex Invigortex houseplant mix, 3 litre title
5.5/10about £8.99
View offer

COMPO 5 litres, when one small pot is the job

Model 11420 is green plants and palm tree earth. Title and specification both say 5 litres, at 1.98 kg. The price is £20.59, about £4.12 a litre, dearer per litre than the 10 litre bag. For one small pot you spend £20.59 and finish the sack, instead of £26.84 with half left over. That lower outlay is why it is the best value for a small job. The star line is 4.5 from 1,887 reviews. Only a few of the first 50 texts are from the United Kingdom. Reviewers describe a palm and other houseplants doing well, a wet mix with wood pieces, and in one case a cut sack. The bullets say 8 weeks. One review mentions 12 weeks. We use 8. One reviewer describes baking the compost. Leave that step out. Buy it for one houseplant-sized palm. Leave it when you need 10 litres, a peat-free sentence on the bag, or a review file that is mostly British.

Why the 5.0 houseplant mix is not the pick

Invigortex lists a houseplant blend at £8.99 with a 3 litre title, £12.95 with a 10 litre title, and £19.95 with a 30 litre title. The bullets name palms with pothos, ferns and peace lilies, and they claim a fast-draining mix. They state no weeks of feed and no peat wording. Every specification block says 1 litre and 1 kg. A per-litre price from those titles would be fiction. The 5.0 is one United Kingdom review dated 3 August 2026, attached to all three listings, and it does not name a pack size. The reviewer saw no tiny flies. That is weaker evidence than 4.5 from 8,462 reviews. The low ticket looks like a saving only if the parcel matches the title.

Common questions

Is the 5.0 Invigortex score better than COMPO’s 4.5?
No. The 5.0 is one review, shared across three pack sizes, and it does not say which bag arrived. COMPO’s 10 litre listing is 4.5 from 8,462 reviews, with UK texts that include a potted palm and complaints about flies. A perfect star on one paragraph is a thinner record.
Is the 10 litre COMPO bag better value than the 5 litre?
Per litre, yes. About £2.68 against about £4.12. For one small pot the 5 litre bag can still be the better purchase, because you pay £20.59 instead of £26.84 and you use what you bought. Best value here means that smaller, verified outlay.
Can I trust the 30 litre title?
The Invigortex page titled 30 litres also says 1 litre and 1 kg in the specification. Those figures cannot both describe a 30 litre sack. At £19.95 the title looks like a bulk saving, and the specification does not show you are receiving 30 litres.
Why do UK reviews mention flies if the score is 4.5?
A 4.5 from thousands of reviews can still contain a sharp complaint. On the 10 litre COMPO listing, UK reviews report flies, including three bags full of bugs and plants lost, and other UK reviews report none. The star line does not sterilise the compost.
Should I buy a mineral palm substrate that is not in this table?
You can, if you want a mineral mix such as Lechuza PALMPON. UK shops quote it around £20 for 12 litres, with a longer feed claim than COMPO’s 8 weeks. This page does not rank it, or Allgood Farm. Best, here, is only among the five listings in this comparison.

Related pages

How to repot a palm

Palm soil

Best compost for palm trees: six checks before you buy

Why palm soil stays wet: saucer, pot size and gnats

Compost for an indoor palm: kentia versus parlour palm

Sources

Public UK sources listed below, used for this page in October 2026. Prices, stars and review counts are from the amazon.co.uk listings in this comparison. This is not a laboratory test.

  1. RHS, Indoor palms (retrieved October 2026)
  2. RHS, Hardy palms (retrieved October 2026)
  3. RHS, Chamaedorea growing guide (retrieved October 2026)
  4. RHS, Peat-free compost choices (retrieved October 2026)
  5. RHS, Fungus gnats (retrieved October 2026)
  6. GOV.UK, Sale of horticultural peat to be banned (retrieved October 2026)
  7. TheyWorkForYou, written answer 19 March 2026 (retrieved October 2026)
  8. BSI, PAS 100:2018 composted materials (retrieved October 2026)