Our house blend Hoya mix!
This is the blend we use as a base for all of our Hoyas. Complete with nutrient dense soil, worm castings, fish meal (don't worry, the soil doesn't smell like fish or death) and coco coir. We left out the perlite as certain Hoyas prefer varying aeration. If you are local and want to make your own- we do have perlite on hand that you can add to the mix.