I found Pumice!!!

26 Sep

I have news!  I found a supplier of Pumice in Canada!  It’s marketed under the name Kanuma Soil and it can be found in Bonsai stores.

Okay, so that’s the good news.  The bad news is…I haven’t found an Ontario supplier yet.  So, if you are in BC, you are super lucky because you can buy Kanuma Soil for under $35 for a 17 lbs bag and pick it up at the nursery for free.  If you are in Ontario like me, you have to ship it, and as we are all fast discovering, shipping rocks is expensive.  I, however, am so tired of mixing soils/stones/substrates and I never seem to get it quite right so I bit a big bullet and ordered two 17 lbs bags of Pumice.  While shipping was expensive, it was still cheaper than buying a small bag from the States and shipping to Canada, so maybe that’s a bit of justification?  And Christmas is coming, right?!  Either way, what is done is done, and I can’t wait for it to arrive!  I hope 34 lbs is enough to last me a few years.  I might still mix it with my poultry grit and clay to make it last longer 😀

This is where I bought it…happy shopping!


Posted by on September 26, 2014 in Wouldn't You Like to Know


2 responses to “I found Pumice!!!

  1. LithopsNewbie

    September 27, 2014 at 5:04 am

    Woohoo … does it mean this ‘Kanuma Soil’ is ready for use? No mixing with perlite or with other is required? Is it good for germinating as well? I am exciting to know.

    • bonseyes

      September 27, 2014 at 12:08 pm

      I think it’s ready for use. It’s pure pumice and it’s been sifted. I’ll know more one I get my order and I’ll post about it, but that is my understanding.

      I know many successful growers who use only pumice. The nursery where I got a lot of my seedlings uses pure pumice. Some people sow seeds directly onto it and say it works great. For myself, I’ll have to test it on seeds to be a believer but I do believe it is the best aggregate for teenage/adult Lithops. It has the correct pH for Lithops which is very important and often overlooked. It’s also softer than many aggregates, so the tiny roots can actually penetrate the stone and collect moisture from inside.

      To throw a fly in the ointment, I also know successful growers who mix Pumice. Remember, soils are as varied as the people growing Lithops – everyone has a favorite recipe! I’ve seen it mixed 1:1 with cactus soil (I might try that for my seeds) and I’ve seen it mixed with Fired Clay and Lava Rock at a ratio of 1:1:1. Some people use Bonsai soil mix which is usually Pumice, Clay, Lava, Pine Bark, and sometimes Peat. As an aside, that store also sold the Clay under the name Akadama Soil.

      I’m excited too! It’s frustrating when everything you read says one particular thing is the best and you can’t find it. There are many work-arounds but the Pumice has been hyped up so high in the Lithops circles, I can’t wait to try this “unicorn” of soils 🙂


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