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Best garden lime

Updated: October 2026

You already know you want lime. The remaining question is which kept listing fits a weighed bed, a light labelled top-up, or a tiny jar. There is no single best garden lime on this page: the useful format is the one whose kilograms match a tested job. Shelf prices below are the GBP figures stored with the listings, not a live re-check. The full table stays on the [garden lime comparison](/hub/fertiliser-soil-and-bark-mulch/garden-lime). The checks before you pay sit on the [garden lime buying guide](/hub/fertiliser-soil-and-bark-mulch/garden-lime/sub/garden-lime-buying-guide). Products Compared did not run a laboratory trial.

You already know you want lime. The remaining question is which kept listing fits a weighed bed, a light labelled top-up, or a tiny jar.

Our top picks

Topline Topline garden lime 4 kg and Epsom salts 1.5 kg

Best overall

Topline Topline garden lime 4 kg and Epsom salts 1.5 kg
10.0/10about £18.95
View offer
Westland Westland lime soil conditioner, 4 kg (pack of 2)

Preis-Tipp

Westland Westland lime soil conditioner, 4 kg (pack of 2)
8.8/10about £19.98
View offer
Generic Calcium carbonate limestone chalk powder, 50 g

Alternative

Generic Calcium carbonate limestone chalk powder, 50 g
8.8/10about £3.95
View offer
On this page
  1. 1.Best depends on the job
  2. 2.A garden-centre box for a real bed
  3. 3.Fast-acting pellets and tiny powders
  4. 4.What to buy for each job

Best depends on the job

Three jobs keep getting sold as one bag. A soil correction toward about pH 6.5 uses the RHS kilogram table in the top 20 cm, roughly 0.4–1.8 kg per square metre. A labelled top-up follows the rate on the pack in your hand: Westland's own UK page says 10 g per square metre, while the amazon.co.uk conditioner listing prints 35–70 g. A jar job is 50 g of chalk powder or 200 g of algae lime. Those jobs do not share a winner. Pelleting does not raise neutralising value: you still need the same amount of calcium carbonate. Hydrated lime is a different chemical and is not one of the kept ASINs; that split sits on garden lime or hydrated lime.

A garden-centre box for a real bed

Westland lime soil conditioner, 4 kg pack of two, is about £19.98 with a listed item weight of 8 kg. The form is granules, the method is dig in, and the stated dose is 35–70 g per square metre. That printed band is a labelled handful, not the RHS clay correction. It is still the only kept listing with about 8 kg of branded garden lime and a rate you can weigh. Westland's manufacturer page also says not to apply that product around vegetables. If the job is a vegetable plot, read garden lime for vegetables rather than overriding the label from this page.
Topline Topline garden lime 4 kg and Epsom salts 1.5 kg

Testsieger

Topline Topline garden lime 4 kg and Epsom salts 1.5 kg
10.0/10about £18.95
View offer

Fast-acting pellets and tiny powders

Encap fast acting lime is about £35.06, with 400 sq ft on the listing and both 1.13 kg and 2.5 litres in the product data. The saved review texts are marked United States. Square feet are not a UK kilograms-per-square-metre rate. Jolly Gardner pelletised limestone is about £123.16 for 14.1 kg, with 5,000 sq ft on the title and no star line. A small acid bed should not treat that coverage as a pH result. The 50 g calcium carbonate powder is about £3.95, and the only saved UK review text is about chalk paint. Algae lime, 200 g, is about £12.30 and names cannabis. Topline's 4 kg lime plus 1.5 kg Epsom salts is about £18.95. Epsom salts are not lime, and the star line is 5.0 from one review with no text. None of these is the bed-correction pick.

What to buy for each job

For a weighed soil correction, use the RHS kilogram table, then see whether the 8 kg Westland pack covers the patch. The second box is spare or a second bed, not a reason to double the rate. For a light labelled top-up, follow the rate you intend. Do not put 1 kg per square metre on a pack that tells you not to exceed its rate. For a jar, mushroom substrate, homebrew, or the cannabis pouch, buy the 50 g powder or the 200 g algae lime and stop. Leave the Levington-titled row until the brand and weight agree. Leave Encap and Oldcastle unless you already wanted a US lawn SKU. How you then spread a garden-centre box sits on how to apply garden lime.

Common questions

What is the best garden lime for a tested acid bed?
The Westland 2 × 4 kg conditioner is the only kept listing with about 8 kg of branded granules and a printed dig-in dose. That still does not make the 35–70 g listing rate an RHS clay correction. Weigh the patch against the kilogram table. A 50 g jar is the wrong object for that job.
Is Westland's 4 kg box the one to buy for a light top-up?
It is the domestic default in this set if you will follow the label rate you intend. The manufacturer FAQ is 10 g per square metre; the amazon.co.uk conditioner listing is 35–70 g per square metre. Do not use the RHS kilogram table for that top-up, and do not ignore a pack that says not to exceed its rate.
Is "fast acting" pellet lime better?
Not on neutralising value. Pelleting does not increase lime value; you still need the same calcium carbonate. Encap and Oldcastle quote US square feet, and Encap's saved reviews are not a UK block. They are lawn SKUs, not proof they outperform a garden-centre box on a UK plot.
Should I buy the Levington-titled listing?
Not from the title alone. The brand field is Fixtures, the unit count is 3,500 g against 2 × 3.5 kg, and there is no dose and no star line. Buy it only if the carton in your hand settles brand, weight, and rate.
Is the Westland listing that mentions seaweed a second box of the same lime?
Treat it as a different ASIN. The title names 4 kg lime and 2.5 kg stimulant. The feature bullets are car-care copy and are not used. There is no stated dose. Do not copy the twin-pack rate onto this row.
Is algae lime or a 50 g jar a garden-lime substitute?
They are calcium carbonate in tiny packs. The jar also names mushrooms and homebrew; the algae pouch names cannabis. Neither holds the kilograms for an RHS correction. Use them for the job on the listing, not as a cheaper bed dressing.
Which listing is poor value if I need kilograms?
Encap at £35.06 for an uncertain 1.13 kg, and Oldcastle at £123.16 for 14.1 kg with no star line. The 50 g and 200 g pouches are cheap on the shelf and still poor value for a bed, because they do not contain the mass.

Related pages

Garden lime comparison

Garden lime buying guide

Garden lime or hydrated lime

Garden lime for vegetables

How to apply garden lime

Sources

Public UK and maker sources from the research digest, used for this page in October 2026. Prices, stars and review counts are the figures stored with the eight amazon.co.uk listings, not a fresh shop check. A star line is not a measured pH rise. Hydrated lime is not one of these listings.

  1. RHS, lime and liming (retrieved October 2026)
  2. RHS, soil pH (retrieved October 2026)
  3. RHS, club root (retrieved October 2026)
  4. RHS, blossom end rot (retrieved October 2026)
  5. RHS, potato scabs (retrieved October 2026)
  6. AHDB, soil pH and liming recommendations (retrieved October 2026)
  7. Westland garden lime (retrieved October 2026)
  8. legislation.gov.uk, liming material (retrieved October 2026)