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Compost advice guides

10 articles
You can't pick a good compost by choosing the most expensive one. The only way to find the best performer for your seeds, young plants, pots and veg is to read the results of the Which? compost tests

Best compost

By Which?
Are you looking for the best compost for your garden? We reveal the the top composts for sowing seeds, raising young plants and growing plants in containers.
4 February 2021

Best composts for containers

By Which?
You need a great compost to grow pots of bedding and bumper crops of veg. Our tests find the best composts for pots and containers.
18 February 2021

Best composts for raising young plants

By Which?
Before planting your seedlings and small plug plants, look at our round-up to find out which compost will give them the best chance of growing big and healthy
4 February 2021

Best composts for sowing seeds

By Which?
Seeds are self-contained packages that have everything inside them to germinate and start to grow. They just need fine, well-drained compost.
4 February 2021

Best grow bags

By Which?
Before planting your cucumbers and tomatoes, look at our round-up to find out which grow bags will give them the best chance of growing big and healthy.
15 February 2021

Controlled-release fertilisers

By Tom Morgan
Our test of controlled-release fertilisers shows you which will keep your plants looking good all summer long.
1 December 2020

How to choose the right compost

By Which?
Choosing the right compost can seem confusing. Read our guide to find out how to pick a compost that will be perfect for your gardening jobs. 
1 October 2020

How we test compost

By Which?
We’ve been testing compost for over 30 years and we’re still astounded by the variable quality of the bags for sale.
18 January 2021

Should I buy peat-free compost?

By Which?
Peat-free composts are at the forefront of compost development as we look to reduce peat use. We look at the pros and cons of alternatives to peat and how to use them successfully.
2 February 2021

Compost bins

By Tom Morgan

Using a compost bin is the most effective way of managing the composting process, so check the results of our expert tests to see which one to buy

Best and worst compost binsHow to make compost
8 February 2021