Compost advice guides
You can't pick a good compost by looking at it, or from the claims on the packet. The only way to find the right compost for your seeds, young plants, pots and veg is to read the results of the Which? compost tests
Best Buy composts for containers
Find the best compost for pots and containers to grow a great display of bedding plants or a bumper crop of veg. Which? tests 17 composts to find our Best Buys.
Best Buy composts for raising young plants
Find the best composts for growing young plants. Which? tests 15 composts, growing tomatoes and begonias to see which produce the strongest, healthiest plants.
Best Buy composts for sowing seeds
Find the best composts for sowing seeds. Which? tests 15 composts, sowing vegetable and flower seeds to find which composts give plants the best start in life.
Recommended growing bags
Grow bumper crops of tomatoes and cucumber and other salad veg in Which? recommended growing bags. See which brands grew the largest, healthiest and best crops.
All compost test results
Full results Which? compost tests, revealing the best and worst composts for sowing seeds and raising young plants, flower and veg containers and growing bags.
How we test compost
Which? tests compost every year find the best composts for sowing seeds, growing-on seedlings and plug plants, and for planting flowers and vegetables in pots.
Choose the right compost
Which? has everything you need to know to choose the right compost for your seeds and plants. Seed compost, multipurpose compost and container compost explained
Don't Buy composts for containers
Avoid sad-looking containers of flowers and disappointing pots of veg. Find out which compost is a Don't Buy compost for containers in Which? Gardening's tests.
Don't Buy composts for sowing seeds
Find out which composts were a Which? Don't Buy for sowing seeds. Most of the seeds sown in these composts failed to germinate and then put on almost no growth.
Don't Buy growing bags
Don't be disappointed by your tomatoes, cucumbers and veg crops. Find out which growing bag grew straggly plants and small crops in the Which? Gardening tests.