Bonsai & Ceramic Sale, 6th November
Japanese Hyuga Pumice, Large, 10-20mm by Kobayashi Sangyo
Japanese Hyuga Pumice, Medium, 5-8mm by Kobayashi Sangyo
Japanese Hyuga Pumice, Large, 10-20mm by Kobayashi Sangyo
Hyuga pumice guide with bonsai uses and matching akadama grades
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Japanese Hyuga Pumice, Large, 10-20mm by Kobayashi Sangyo
Japanese Hyuga Pumice, Medium, 5-8mm by Kobayashi Sangyo
Japanese Hyuga Pumice, Large, 10-20mm by Kobayashi Sangyo
Hyuga pumice guide with bonsai uses and matching akadama grades
Japanese Lava Stone, Medium, 0-10mm - - Growing Mediums
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Japanese Hyuga Pumice, Medium, 5-8mm

R125.00 ZAR
Tax included. Shipping calculated at checkout.

Type: Growing Mediums

Size: 2L bag

Low stock

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Japanese Hyuga Pumice for Bonsai, Orchids and Succulents

Japanese Hyuga Pumice is a porous volcanic growing medium with a medium particle size of 5–8mm. Its lightweight, textured granules help maintain an open growing mix, balancing drainage and aeration with some moisture retention. Use it as a durable mineral component when preparing growing media for larger bonsai, orchids and established succulents.

Benefits for your growing mix

  • Drainage and aeration: helps maintain spaces between particles so excess water can drain and air can reach the root zone.
  • Porous structure: holds some moisture within the granules while supporting a freely draining mix.
  • Lasting structure: does not decompose like organic ingredients, helping the mix retain its physical structure.
  • Lightweight mineral component: suitable for blending with other growing media to adjust the balance of moisture and air.

For bonsai growers

Use this medium grade in coarse mixes for larger bonsai and deeper containers. Combine it with Ibaraki Hard Akadama, Medium, 5–8mm for a similarly sized mineral blend. Adjust the proportions to suit the tree species, container depth, local climate and watering routine. Smaller trees and shallow pots may require a finer grade.

For orchid growers

Blend with Premium, Treated Orchid Bark to introduce a durable mineral component while maintaining an open root environment. For orchids that need more moisture between waterings, incorporate a suitable amount of Rehydrated Sphagnum Moss. Choose the balance according to the orchid's requirements, airflow and growing conditions.

For succulent growers

Incorporate pumice into a suitable succulent growing mix to increase its mineral content and encourage drainage. The 5–8mm grade is best considered for larger plants and coarser mixes; seedlings and small-rooted plants may need finer particles. Adjust the organic component and watering frequency to the species and season.

Preparation and care

Sieve or rinse away loose dust before use. Plant into containers with unobstructed drainage holes and assess moisture within the mix before watering. Pumice does not make a container impossible to overwater or eliminate the risk of root rot. Although it resists decomposition, plants still need periodic root inspection, feeding and repotting as required.

Premium quality medium-sized (5-8mm) pumice highly praised for versatility across multiple plant types. Customers said it's "excellent" for bonsai drainage layers, succulents, orchids, and even aquarium filters. Lightweight and porous, it promotes healthy root growth and prevents waterlogging. "A game changer" for orchid growers, with reports of new growth within days.

M
Melinda E. (South Africa)

Excellent size pumice for my large succulents. Will order this again.

I
Izak S.

Great quality

T
Taki T. (South Africa)

Perfect as advertised.

C
Courtney F. (South Africa)

Great product. And always great service!

I
Inben N. (South Africa)

Great product. I use it as a bottom layer in my bonsai pots.

C
Courtney F.
Amazing stuff

Amazing product and even better service. Thank you 🫶

C
Courtney F.
Love the product

I live the product, but the service was better ❤️

N
Nate A.
Efficient and well priced

Received great service from the Bonsai Tree team. Quick collection and appreciated the advice. Be back soon... The Pumice is great

J
James M.
Great product

Perfect bio media for my cannister filters

C
Chris J.
pumice

Excellent service and product!

T
Terry V.
Pumice, Japanese pots etc

I am very pleased with every item I bought and the delivery was quick

Your orchids look amazing in their new containers Terry! Thank you for posting.

R
Roy T.
new purchases

Hi Terry
Everything arived promptly.
The products are very good and have changed my thoughts on repotting of
some of my plsnts.
Regards
Roy Topham

J
Jethro D.
Good Stuff

It is my first time using pumice. Was shocked to find that it was so lite. Overall real good mineral. My lophophora loves it. It performed netter than expected.

E
EVADNE D.J.
Its a game changer for me

This product has made me all the more enthusiastic about my orchids. In fact, I am in the process of now ordering more.

A
Adri O.
Review of Pumice

I LOVE this item!!! Will definitely be ordering again!!
Thank you!!

M
Mariam F.
There is nothing better than this pumice!

I have struggled to find a good growing medium for my orchids. Terry suggested that I try his pumice. I have repotted some orchids that have been dormant for over 2 years. Within a few days I saw new aerial roots and leaves. This is a great product.

B
Brendon v.S.
Brilliant product

I use this product medium pumice for my orchids and bonsais. Provides a fantastic drainage layer for my bonsais and also an invaluable soil medium addition for my orchids. The best service and products, thank you Terry and James

E
Eloise F.
Orchid Supplies

My Orchid is super happy in her new medium, her leaves are nice and green and she is much happier in her new, spacious pot :) 5 Stars!!!

P
Pat P.
Japanese Pumice

Great product
Use it for both my succulents and my Bonsai

F
Frank
Japanese Hyuga Pumice

I have just started experimenting with hydroponics and the pumice seems to be doing a great job.Stones are damp .Time will tell but at this point in time I think it is great

D
Denise A.
My new potting medium

I love my orchids and take great care of them but I noticed that, this year particular, I was getting a lot of green algae deposits on the inside of my pots and a few of my plants lost almost all of their flowers. After researching the subject I decided to try a different medium and pot, it's still a bit early to draw conclusions but they all seem to be happy. I am also very happy with the personal and yet highly professional service received and would highly recommend the Bonsai Tree as it is simply the best.

S
Sonja L.
Japanes Hyuga Pumice for Tolumnias

I'm using this medium in combination with sphagnum moss for my Tolumnia orchids. I'm very happy with the medium.

D
David V.
Japanese Bonsai Akadama and Pumice

Moving into my 3rd year utilizing Akadama and Pumice as my base substrate the difference in my trees is staggering. The foliage is healthier and the root balls aren't even in the same ball park. Very little hacking into your root ball with a pick or rake anymore so no more over damaged roots. A must for those looking for a bit extra from their trees

H
Hester O.
Japanese Bonsai Pumice

I do love the Pumice, it seems like my Tolumnia's orchids are happy in it, it looks like they are all forming new "shoots" and Roots.

Thats great news Hester! I too am seeing really good root growth and thus general plant health on the Tolumnia we sell that have been potted into hyuga pumice.

V
Vanessa S.
Japanese Bonsai Pumice

This product is high quality and works great! As an orchid grower, I find this product irreplaceable.

P
Patricia P.
Online Purchase

Very Good. Will recommend any time.

H
Hannes H.
Pumice drainage layer

This product works wonderful for drainage layer on my conifers. It's an excellent product!

M
Martin F.
Japanese Bonsai Pumice

Excellent product and excellent service. Thanks Terry.

C
Carolyn d.
Bonsai pumice stones perfect for my needs!

I love these pumice stones, I actually use them for indoor plants to improve drainage & nutrient holding capacity. What's great is that they are so lightweight and easy to mix into the soil. Porosity is very good.

M
Murray E.
purchase

good communication on order, fast service. Highly recommended

B
Brian G.
Great products

I've seen great springtime growth, little more then usual, so it seems I made a great choice. I purchased a selection of growing medium and planted my trees in different combinations.

J
Jaco A.
Update on rooting cacti in pumice

A year ago I received a head of Mammillaria geminispina, that had been taken off a large clump. It had no roots whatsoever. The cutting was sat on top of a 10x10 pot with 100% pumice, and supported not to fall over. It was placed in a sunny position, and watered normally, once a week with the other plants around it, with a bone dry winter rest. My plan was to see whether it would root, and then to repot into an all-purpose succulent soil mix. I basically forgot about the plant. This week was the first time in a while it got a close look. I tipped the pot to the side, thinking the top layer of pumice would fall out. It didn't, which surprised me. When I scratched the surface, I discovered that roots had grown throughout the entire surface layer, and had even attached to the underside of all the top grains. I dug a bit deeper, and the entire pot was chock full of roots, holding the substrate and plant rock solid in place. I have never before seen a cactus do this in any other substrate. I had my doubts about the large particle size, thinking the medium would not pack down tightly enough to keep the plant anchored or the moisture in long enough. I'm happy to say I was wrong on both counts, so spectacularly that I have undergone a complete paradigm shift. This pumice stuff is really something else. Bless the Japanese for first trying to grow trees in it, and bless Terry for bringing it to our shores.

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