Expanded Clay Pebbles 4-10mm Grade

/
/
Expanded Clay Pebbles 4-10mm Grade Potting Soil & Substrates GrowTropicals

Expanded Clay Pebbles 4-10mm Grade

/
/
Pack Size
Expanded Clay Pebbles 4-10mm Grade

Expanded Clay Pebbles 4-10mm Grade

8L

£7.99

Tax included. Shipping calculated at checkout.
Earn 35 points 5 points per £1 spent Sign Up Now

Free shipping over £60

7-day live arrival guarantee

5/5 from 1,600+ reviews

Packaged with care

Carbon-neutral shipping on all orders

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.


  • 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.

Our Community Favourite

See All Reviews →
Loading gallery...

What Our Customers Say

★ ★ ★ ★ ★

“Arrived just like the photos - maybe even fuller. Healthy, well-acclimated, and straight into my collection with no issues.”

– Emily P.

★ ★ ★ ★ ★

“Flawless leaves, stunning variegation, and clearly cared for by experts. It’s already a talking point in my home office.”

– James R.

★ ★ ★ ★ ★

“Hard to find rare plants that are pet-safe. Ours arrived in perfect condition and looks amazing without any worry.”

– Sophie L.

Packaged with Care

Packaged with Care

Every order is hand-packed in eco-friendly, protective packaging - refined through thousands of deliveries to ensure your plant arrives healthy, hydrated, and looking its best.

Backed by our Live Arrival Guarantee.

Perfect for Gifting

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

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.

See What's In the Box!

See behind the box with these awesome unboxing videos from some of our favourite Youtubers.

Unboxing video
Unboxing video
Unboxing video
Unboxing video

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.
  • 5 stars: 15 (94%)
  • 4 stars: 1 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anna M.
Looking forward to using this

Looking forward to using this soon, seems top quality and cheaper than other brands

Anna M. review photo
L
Lisa p.
Good quality Leca, great for

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
clarissa l.
Great alternative to soil

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
STEVEN F.
Nice

Nice

G
Gary G.
I like the dark colour

I like the dark colour and size mix, It will do very nicely.

J
Jarrell G.
Love the attractive colour and

Love the attractive colour and varied size. Good value!

G
Gayane H.
Good

Good

J
Julie L.
Small enough to use in

Small enough to use in small terrariums, as a drainage layer. Good quality product.

C
Chanelle W.
As described

As described

T
Terri S.
Very happy with the product.

Very happy with the product. Will be back for other Items.

V
Victor F.
I love leca 4-10mm used

I love leca 4-10mm used it as drainage and as top layer on my bonsai trees , really happy with it

J
John M.
Bought this LECA as a

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
Richard E.
Great sized leca with a

Great sized leca with a lovely dark colour. Goes well with all my plants

M
Michael H.
Great quality substrates and plants-

Great quality substrates and plants- all delivered rapidly with excellent, swift customer care….thank you

N
Nathan

Great stuff

N
Nathan

Great stuff