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.
Pumice (Medium Grade)
£5.99
Pack Size
FREE tracked delivery on orders over £60
Description
Pumice makes an excellent soil amendment providing structure, aeration and moisture regulation. Its porous surface absorbs excess moisture, releasing it steadily back into the substrate as required by roots. Pumice contains very few trace minerals but can be ‘activated’ by soaking it in a nutrient solution for 24 hours before use.
Medium Grade is measured at 3-8mm
Please note: Pumice is a natural product and its appearance may vary slightly from the image.
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
7 day live arrival guarantee
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 this medium-grade pumice for substrate mixing in houseplants and bonsai. Reviews highlighted "brilliant quality," "perfect size," and minimal dust. Shoppers appreciated the "excellent quality stone" and fast delivery. Many noted it works well as a perlite alternative. All reviews were positive (5-star ratings with one 4-star), with repeat customers citing consistent quality.
- Best I've found, good size and hardly any dust.
- Excellent quality stone perfect for mixing. Great results for my lithops.
- Brilliant quality. Love the grade and size. Have purchased several times with confidence.
A
Good quality and the size is perfect for what I need
M
Excellent quality stone perfect for mixing. Great results for my lithops.
N
Great product, lovely grade. Very happy with my purchase.
V
I have ordered on many occasions and I am very happy as usual, very quick delivery and top quality products
K
Arrived safely, as described
K
Arrived safely, as described
Z
Fantastic product
S
I use pumice in all my house plants and Grow Tropicals sell the best, good size and hardly any dust. In fact I purchased ALL my soil components from GT. Not only the best I've found, prices are really great and the service from the GT is second to none! I highly recommend shopping here for plants and everything else you may need to help them grow well!
M
Quick delivery
I
Great supplemental substrate
L
Top quality great size just the right grade
K
Good quality
N
Good size for making a substrate mix.
S
Excellent
A
Brilliant quality. Love the grade and size. Have purchased several times and do so with confidence.
A
Good quality and great size for my purpose.
Ideal grade.
H
Pumice looks to be a good size, well packaged and happy with price and delivery. I've purchased it for my bonsai mix but this will not happen until next year so can't add anything else.
K
Always great quality substrates. Fast and well tracked delivery. Highly recommended.
J
Great products, and quick delivery. I can definitely recommend GrowTropicals!
A
Fantastic service. Excellent products, Aroid Mix is magic!
V
Excellent, I used instead of perlite and am very happy
M
Excellent quality, the perfect size for the project I needed it for.
B
Great! Using as a plant dressing.
S
Excellent pumice, usually order the large but I think the Alocasia I have need a smaller grade and this one is perfect. All my substrates come from GT so I know the quality is always excellent
P
Very pleased with my purchase. The price was very good and there was much more of it than I was expecting. I whole heartedly recommend this to anyone
Pumice (Medium Grade)
£5.99