Premium Houseplant Substrates

Hand-blended, peat-free potting mixes and components. Designed by plant people, for plant people.

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Houseplant soil mix guide

Need help picking a mix?

Our comprehensive soil mix guide matches every popular houseplant to its ideal substrate. Whether you're repotting a Monstera or nursing a fussy Calathea, we'll point you to the right blend.

Help Me Choose

Our Promise

100% Peat Free

Every mix uses sustainable coco coir as its base. Better for your plants, better for the planet.

Tried & Tested

Developed alongside growers and trialled on thousands of houseplants before reaching you.

Ethically Sourced

We work directly with suppliers to ensure every ingredient is responsibly and sustainably sourced.

What Our Customers Say

"All I want to say is that if I were a plant, I'd want to live in this!!! I'd be in plant heaven!"

— Anotoinette

"I love this potting mix. I find it much better than its leading competitor"

— Samantha

"This mix keeps my alocasias healthy with great aeration, drainage, and moisture balance. Highly recommend and if their soil mixes! Easy storage with the bags also."

— Michelle

Frequently Asked Questions

Yes! Every single mix and component we sell is 100% peat-free. We use sustainably sourced coco husk as our base instead of peat.

Check our Soil Mix Guide for a full breakdown. As a quick rule: the Simply range covers most common houseplants, while our Premium blends are tailored for specific families like aroids, hoyas, and terrarium plants

The size bag you need depends on the size of your pot and whether you're fully repotting or just topping up.

As a general guide, a 5L bag is ideal for several small plants (up to 12cm pots), a 10L bag works well for a few medium pots (14–18cm), and a 20L bag is usually best for larger plants (20–25cm pots). For very large planters (30cm+), you may need 25L or more, depending on the depth.

If you're only moving up one pot size, you’ll need less soil than you think — you’re simply filling the space around the existing root ball. If you're filling a decorative planter from scratch, you’ll need more.

If you’re unsure, try our Soil Potting Mix Calculator to work out exactly how much you need.

Absolutely! We sell every individual component (coco coir, perlite, bark, charcoal, and more) so you can create your own custom blends.

Keep it in a cool, dry place in the resealable bag. Our mixes will stay fresh for 12+ months when stored properly. Avoid direct sunlight and excessive moisture.

Our mixes are primarily formulated for indoor houseplants. While some components (like perlite and bark) work great outdoors, the ready-made blends are optimised for container-grown indoor plants.

We offer free standard shipping on all UK orders over £60. Substrates are lightweight and ship in recyclable packaging.

Ready to Give Your Plants the Best?

Explore our full range of peat-free substrates, hand-blended in Yorkshire.