mild compost mixed with perlite.
I've been happy with Agway composted cow manure with humus, or Coast of Maine seaweed compost.
30% perlite! =drainage
stinkyattic Reviewed by stinkyattic on . how often should you water seedlings in peat pellets? should you let them dry out completely (looks like dry but soft dirt, as opposed to dark moist earth) before watering again? or should it stay lightly saturated? Rating: 5