pretty much same as you, half bag of vermiculite, lightly wet, and heating mat, inside pot to block light
Where is platonia insignis from? With how huge the seed is, I wonder if maybe it needs to be dried out every once in a while for months like it would be in a desert or something, then given the seed bag treatment? I don’t know at all just know what didn’t work for me
I know some seeds need a loooot of time before sprouting due to hormones needing to meet a certain level in the seed before sprouting, im guessing that’s what’s happening here and the texture of the seed lends to a lot of mold ? I really don’t know, kinda sad they never worked out. I finally threw my last one out about a week ago