Clay Pebbles | 3L Bag
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Clay pebbles are lightweight, porous balls that absorb and slowly release water — helping to regulate moisture levels and protect roots from temperature changes. They’re perfect for houseplant care, hydroponics, and terrariums.
These medium-grade pebbles (8–16mm) are made from natural clay fired at high temperatures, creating a smooth outer surface and honeycomb core. This structure ensures excellent aeration and drainage while preventing root rot.
- Ideal for drainage layers in terrariums
- Perfect for humidity trays or top dressing houseplants
- Improves water retention and root health
Volume: 3 Litres
Size: 8–16mm (medium grade)
Material: Natural fired clay
Discover more plant care accessories to keep your houseplants thriving.
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Standard UK Delivery
Tracked delivery within 1–3 working days to most UK postcodes (excl. Northern Ireland).
Orders under £15 – £5.95
Orders £15–£34.99 – £4.95
Orders £35–£49.99 – £3.95
Orders £50+ – FREE
Local Hand Delivery (Edinburgh)
£7.95 flat rate. Monday–Friday delivery to EH1–EH22, EH28 and EH29. Select your delivery date at checkout. Required for large plants, terrariums and fragile items.
Store Pickup
Free collection within 1 hour from our St Vincent Street shop (EH3 6SH).
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meet the plant gurus
At grow urban, we're passionate about helping people create greener, happier homes through plants.
From our Edinburgh plant shop, our team of Plant Gurus carefully hand-pick every plant and botanical product we sell, ensuring it arrives looking its very best.
Whether you're searching for your first houseplant or adding to an ever-growing collection, we're here to share expert advice and help your plants thrive.
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what to expect when you order
We offer happy, healthy plants that are carefully hand-picked and delivered straight to your door from our plant shop.
We will deliver to you in recyclable boxes and we use paper materials and compostable bubble wrap! Our Plant Gurus will ensure that your plants are safe and secure for the journey to their new home!