Compost and Soil Improvers

Grow a healthy, fertile garden with Johnsons’ compost and soil improvers. Choosing the right growing medium can make all the difference to your plants, aiding root development and providing the ideal balance of nutrients and moisture. Whatever you’re growing, from fruits and veggies to flowering plants, you’ll find the perfect composts and soil improvers below.

Choose from a variety of multipurpose and peat-free compost for soil improvement – perfect for everything from garden beds and borders to house plants. We also stock a great range of soil improvers to enhance the fertility and structure of your existing soil.

Compost and Soil Improvers

31 products

Special Chrysanthemum and Flower Fertiliser

Feed and Fertiliser

Pest and Disease Control

Coco Grow Seed and Cutting Compost 75ltr

Peat Free Compost

Quality Potting Compost

SylvaGrow Multipurpose Peat Free Compost

Vermiculite 10ltr

10ltr bag

Coco Grow Seed and Cutting Compost 75ltr

1 compost

Natural Compost Maker 500ml

50ml Bottle

Coco Grow Peat Free Pure Coir Seed Germination Dots x 50

50 x 40mm Dots

Coco Grow Peat Free Pure Coir Compost Boost

75ltr

Coco Grow Pure Coir Chip Mulch 60ltr

60ltr

Coco Grow Peat Free Pure Coir Compost

75 litres

Carbon Gold Soil Improver 4ltr/2kg

4ltr/2kg

Coco Grow Seed and Cutting Compost 15ltr

1 compost

Perlite - Compost Improver 10ltr

10ltr bag

Coco Grow Peat Free Compost

6 x 9 litres

REMIN volcanic rock dust 10kg

10kg pack

Coir Peat Free Multipurpose Growbags

4 x Growbags

Vermiculite 100ltr

100ltr

Charge-Soil Conditioner and Biostimulant 10ltr tub

10ltr tub

Sold Out

Worm Castings Natural Fertiliser 20ltr

20ltr bag

Water Storing Crystals

4 x 60g sachets

Rootgrow Mycorrhizal Fungi 360g

360g pouch

Perlite 100ltr

100ltr

Slot Down Compost Bin

1 compost bin

Slot Down Compost Bin Extension Kit

1 composter extension kit

Peat Free Multi-Purpose Compost 40ltr x30 and Orgro 15ltr x6

30 x 40ltr Bags, 6 x 15ltr bags

Rootgrow Tomato Starter

6 biscuits

Rootgrow for bare rooted plants 360g

360g pouch plus gel

Peat Free Ericaceous Compost 40ltr x30 and Orgro 15ltr x6

30 x 40ltr Bags, 6 x 15ltr bags

Sold Out

SylvaGrow Multipurpose Peat Free Compost

50 litres

Bulk Deal - 21 x 60ltr Compost PLUS 6 x 15ltr Orgro

Ericoid Rootgrow with Mycorrhizal Fungi 200g

200g pouch

Granular Lime Soil Conditioner 10kg

10kg tub

Quality Compost for Soil Improvement

Our high-quality compost to improve soil can work wonders in any garden, helping you grow healthy plants and beautiful flowers. You’ll find everything from general purpose compost to specially formulated potting soils, along with a wide range of additives to promote better drainage, aeration, and water retention. Browse our plant feed and fertiliser range to give your plants an extra boost.

Buy Compost and Soil Improvers Online

At Johnsons, we have everything you need to create the garden of your dreams. From compost and soil improvers to great value garden tools, we only stock the highest quality products to ensure unbeatable results every growing season. Order today for fast UK delivery – 100% satisfaction guaranteed!