You can always add it later as a top dressing or "tea." If it's mixed into your growing medium you are going to be stuck with it. Too much of it and your soil we be like slippery, wet clay. Drainage and proper aeration are critical, and worm poo can be problematic if you're over-zealous. Note that carinia offsets 10% worm poo with 3x as much perlite. :thumbsup:

And if you're staying in dirt, use Rapid Rooters like Shake suggested. Almost foolproof. Unless you're growing hydroponically, starting in rockwool makes very little sense.

Bossy, ain't I?
DH
DreadedHermie Reviewed by DreadedHermie on . New Grower's First Journal Greetings and hellos all my brothers and sisters. I'm a private user establishing his first indoor grow room for personal use, and this will be my grow journal. At the moment, I have seeds that I ordered online that will be arriving in the next 2 weeks, but I'm also starting this now for input into my setup and suggestions that any of you may have. I'm a scientist by trade, so I'm trying to be as exact as possible when it comes to the technical specifications of my grow area. So far, I have Rating: 5