Start feeding it approx. 3-4 weeks after it has popped through the soil. Give a light feeding at first so you don't burn/overfeed your plant. I suggest using only 1/4 strength at first, feeding once a week, then slowly increasing to 1/2 strength, 3/4, then full strength.

30-10-10 is fine for the vegging stage, the stage you are in now, but when flowering time comes, you want something high in P (N-P-K), like 10-15-10, or 15-30-15, something along those lines.

Good luck and welcome.
Nochowderforyou Reviewed by Nochowderforyou on . 1st grow & Confused :( Hi everyone, my first post n all that :) I have got 10 Northern Lights germinated a week ago, plus 4 unknown seeds from a bag of green my fella smoked , the first set of true leaves have come through, in a mix of standard compost & Perlite. i know this has been asked like a 1000 times but when should i start to add fertiliser and is a mix of 30.10.10 suitable ?? Thanks for any help given !! Rating: 5