These porous clay pebbles are a simple, reliable way to keep plants happy and well-aerated. Each 10kg bag contains smooth, lightweight pellets that create a stable, free-draining base in pots or terrariums. The roughly 8-16mm size lets excess water pass through while holding just enough moisture to keep roots comfortable.

They’re also ideal for scattering in trays, where they help raise pots above sitting water and increase humidity around foliage. You can mix them into compost to improve drainage, and use them as a neat, decorative top dressing for pots. Supplied in a 10 litre bag.