Powered by worm casts
The future of
organic gardening
Rich in microbes, minerals and organic nutrients — for stronger roots and bigger, healthier growth.
- Glee Awards 2024 Winner
- Charles Dowding Affiliated
- OF&G Approved
What sets us apart
Soil Association Approved
We're proud to carry the Soil Association's approval — the UK's most trusted mark for organic standards. It's independent assurance that what you're feeding your plants is genuinely organic, right through from worm to bag.
Worm Power.
The science behind the soil.
Our worm casts contain billions of beneficial microbes, chelated minerals and plant-available nutrients — everything your plants need to thrive from the roots up.
Discover how it works
The Gro Worm difference
Faster, stronger foliage and root growth
Increased germination
Increased resistance to disease and pests
Incredible water-saving qualitiesOur Best Sellers
Plant Boost Granules 2.4L
£6.49
House Plant Black Gold Compost 8 Litre Carry Bag
£6.49
Black Gold Peat Free Organic Compost 40L
£10.49Sustainable Product of the Year
Glee Awards 2024We're delighted to have won Sustainable Product of the Year at the 2024 Glee Awards — the UK's leading garden retail trade show.
Affiliated with Charles Dowding
Charles has been a pioneer in organic no-dig soil management since 1983. We're proud to be an officially affiliated partner.
“Worm casts are one of the finest things you can add to any soil.”
Ready to transform your garden?
Join thousands of UK gardeners already growing with Gro Worm.
