Perlite sold in the UK is much smaller than this, but I do have a friend with a healthy Worslya seedling, just over a year old, which is growing in a mixture of perlite, gravel and orchid bark, in a clay pot. Peter (UK) On 2 February 2015 at 22:47, steven hart <hartsentwine.australia@gmail.com> wrote: > Hello Fernando, I don't know what akadamia is, but I have had 100% > success growing 60 Worsleya from seed to 6 years old in pure perlite.. > > Perlite if you don't know it, is from memory, neutral, super-heated > pumice, average size is about 5-8mm diameter, but you can get crushed too, > crushed would hold too much moisture for your seeds >