Perhaps this is because I'm new, but doesn't EVERY plant 'prefer' well drained soil? At least most plants not specifically bred for
aquaculture? I don't know that I've ever seen a seed or pot whose recommendation was anything other than 'well drained soil.'
Edit::: Sometimes I feel that if someone were selling pet humans they'd come with instructions reading, "keep in approx. 70 degree F. temperatures (20 degrees C.) in well ventilated areas. Space approx 6 ft.from other humans. Provide nutrients daily and fertilize with anabolic steroids monthly for best results."