I recently finished a Lowrider2 grow with 20 seeds, 11 female and 9 males.
I used 40% good quality potting mix, 30% perlite, 25% worm castings and 5% composted manure.
This mix will see them right through the veg stage of approx. 3 weeks.
and well into the flowering stage of 6 weeks.
Lowrider...