I use PRO-MIX BX MYCORRHIZAE 70 % with pure perlite #4, 30%.Fantastic info! What would I look for on the underside of the leaf? I did take a million pictures, and have them attached, because that is the kind of guy I am. Might be helpful, might not be?
Could you give a ratio of perlite to soil I should use for this plant? I've also got some sphagnum moss in case I should throw some of that in as well. I'm going to plant it tomorrow since it's had a couple days to relax.
Kava is a mycorrhizae plant.
Never mix sphagnum moss (SM) in with your soil mix.
The use of SM is for propagating nodes, air-layering and related.
I don't see anything wrong on the underside of the leaf, but as @kasa_balavu
says- you need to look close and magnify.
See page 89 of Hawaiian 'awa book for some things to look for.
It may be that your new Mahakea plant is a little stressed from shipping
or a minor nutrient deficiency.
Dry , hot air are going to make growing this plant in your environment challenging.