10 bestCompost Additivesof January 2026
112M consumers helped this year.
1
Coco & Coir 6 x 650g Organic Peat Free Compost Coco Soil. Reptile, Turtle Vivarium Substrate - Coco Grow (54L), Brown(Packaging may vary)
Coco&Coir Everything in a nutshell
10.0
2
Houseplant Focus Repotting Mix, 3L - Growth Technology Potting Soil for Indoor Plants - Peat-Free Compost Soil - Professional Grade House Plant Food
Growth Technology
10.0
3
Jamieson Brothers Peat Free Bulb Planting Compost with added John Innes 60L Professional Blend - Specially formulated mix which comes with 6 months feeding as standard
Jamieson Brothers
9.8
4
Miracle-Gro Premium All Purpose Compost, 50L
Miracle-Gro
9.6
5
Vitax Compost Maker Soil Additives,
Vitax Ltd
9.4
Other
BIOBIZZ Light Mix 50L 20L & 10L Organic Soil Potting Compost Hydroponics Growing (50 Litre)
Green Haven Premium Ericaceous Compost 60L for Acid Loving Plants – Ericaceous Soil - Acidic Soil for Plants Rhododendrons, Azaleas, Camellias - Eracasious Plant Compost
Carbon Gold | 4 Ltr Biochar Soil Improver | No chemical or GM additives | Soil Association Approved
Elixir Gardens Compost Activator 4.5-0-0, Accelerator/Compost Maker - 25Kg | Treats over 180sqm
6
Professional Compost 60L - 6 months feeding NPK 14-16-18 specially designed to maximise yield boost roots and plant growth for indoor and outdoor use - By Jamieson Brothers
Jamieson Brothers
9.1
7
Pelle & Sol 50L Peat Free Compost - All Purpose, Bio & Wood Fiber, Enriched with Seaweed & Volcanic Dust, Ideal for Outdoor Plants, Vegetables, Seed Starting, Potting Soil, Organic Gardening Soil
Pelle & Sol
8.8
9% off
8
Envii Compost Accelerator – Organic Compost Maker & Activator, Uses Natural Beneficial Bacteria to Speed up the Composting Process, Suitable for All Compost Bins 12 Tablets Treats 1,800L of Compost
envii
8.5
6% off
9
Garotta Compost Maker, 3.5 kg
Garotta
8.3
10
Humusziegel Light Potting Soil - 10 x 650 g Coconut Soil - Humus Brick Briquette Coconut Fibre Substrate - Potting Soil Seed Sowing Compost Planting Humus for Table and Flower Box
Humusziegel
8.0
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