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Houseplant
Expanded Clay Pebbles 4-10mm Grade
£7.99
Pack Size
FREE tracked delivery on orders over £60
Description
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.
Delivery & returns
See all delivery pricing tiers
Based on your basket total, confirmed at checkout. Free delivery: Economy over £60 · Standard over £100 · Express over £150.
Order by 1pm Monday to Friday for same day dispatch. Every plant travels in protective, plant-safe packaging with tracked delivery.
Changed your mind? See our Return Policy.
Best quality plants guaranteed
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Delivered to your door with care
In their words
What our customers say
Arrived just like the photos - maybe even fuller. Healthy, well-acclimated, and straight into my collection with no issues.
Flawless leaves, stunning variegation, and clearly cared for by experts. It’s already a talking point in my home office.
Hard to find rare plants that are pet-safe. Ours arrived in perfect condition and looks amazing without any worry.
Good to know
Frequently Asked Questions
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Why Grow Tropicals
Plants delivered the way they deserve
Perfect for Gifting
From rare collector’s pieces to easy-care favourites, our plants arrive fully potted and ready to enjoy. Add a personalised note at checkout for a thoughtful finishing touch.
Delivered fresh, beautiful, and gift-ready.
Sustainability at Heart
All plants are ethically sourced from trusted growers, never wild-collected. Every order ships carbon-neutral in minimal-waste packaging.
Good for your home - and the planet.
Verified reviews
Rated by real customers
Customers praised these 4-10mm clay pebbles as "good quality" and versatile for plants. Shoppers use them for drainage, semi-hydro systems, terrariums, and as top dressing. The dark color is popular. Customers noted they're "great for fine roots" and "small enough to use in small terrariums." Described as good value and cheaper than other brands.
- Good quality, great for fine roots. I use in a number of ways.
- Love the attractive colour and varied size. Good value!
- I love it, used it as drainage and as top layer on my bonsai trees, really happy with it.
A
Looking forward to using this soon, seems top quality and cheaper than other brands
L
Good quality Leca, great for fine roots. I use in a number of ways, as semi hydro, mixed in with chunky leca, to help with drainage and also as a top dresser.
c
Not used for long, but plants in leca seem happy so far, good for smaller rooted plants. Hoping it will help my watering habits and hopefully pest issues too!
S
Nice
G
I like the dark colour and size mix, It will do very nicely.
J
Love the attractive colour and varied size. Good value!
G
Good
J
Small enough to use in small terrariums, as a drainage layer. Good quality product.
C
As described
T
Very happy with the product. Will be back for other Items.
V
I love leca 4-10mm used it as drainage and as top layer on my bonsai trees , really happy with it
J
Bought this LECA as a base layer for an open terrarium. It works great, I'll also be using it as a base when reporting.
R
Great sized leca with a lovely dark colour. Goes well with all my plants
M
Great quality substrates and plants- all delivered rapidly with excellent, swift customer care….thank you
N
Great stuff
N
Great stuff
Expanded Clay Pebbles 4-10mm Grade
£7.99