Lightweight expanded clay aggregate pebbles have wicking properties that make them an excellent medium for growing plants hydroponically or for use as a component in a soil mix.
With two available sizes, our clay pebbles will meet the needs of small, medium and large plants alike. Clay pebbles are also commonly used as a drainage layer for terrariums and our clay pebbles, being darker and less uniform than some other brands, makes for a more pleasing aesthetic when used for this purpose
Clay pebbles are nearly half the density of calcined clay and about the same density as horticultural charcoal, making it an ideal substrate option for drainage layers. We recommend covering clay pebbles with a material such as horticultural fabric or synthetic screening to prevent smaller-grained substrate materials from filtering down.
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We always aim to make sure our customers love our products, but if you do need to return an order within 14 days of purchase (not including plants*), or any items are damaged, we’re happy to help. Just email us directly at hello@growtropicals.com, and we’ll take you through the process.
Please note: we cannot be held liable for any packaging costs should the original packaging be discarded.
*Unfortunately we cannot accept returns of undamaged plants as these are perishable items and are not saleable upon return. If a plant is damaged, we will compensate for this as per our live arrival guarantee. -
When placing your order, you can choose from three dispatch speeds to suit your needs: Economy (prepared and shipped within 4-5 days), Standard (3-5 days), or Express (dispatched the very next day). Please keep in mind that "dispatch" refers to the time it takes our team to prepare and pack your items before handing them over to the courier, not the total delivery time.
Shipping costs are based on your total order value and will be calculated at checkout, with free shipping automatically applied to all orders over £60. For a full breakdown of shipping prices please see our help center here.
Additionally, to protect the health and quality of our live plants, orders containing plants are exclusively shipped Monday through Thursday. This careful scheduling prevents your plants from being stuck in a dark shipping depot over the weekend, ensuring they arrive at your door vibrant and healthy.



