I use soil that gives me gnats! haha

I just use simple garden bed soil tbh with some fish fertilizer in summers. Ive just put these out to get rain, today I will arrange them on the covered porch for their summer life and hand water them again.

Good note though, dont leave em on the ground, slugs… truly would be aweful! Ive downsized since last year, quite a bit, so Id not like to lose what is left!