Anything between 6 - 7 is adequite.
RhinoGrowUK Reviewed by RhinoGrowUK on . ah its purple i was walking through my plants before setting off to school this morning and i noticed my cali big bud, leaf stems were purple, not the whole leaf, just the stems, and it seems to have entered flowering maybe two weeks ago. i was thinking maybe cold weather? its my first outdoor grow, but the weather really hasn't been cold, so i have no idea. oh yeah im using some blooming stuff like once every 3 or 4 waterings. and they are in the sun for most of the day. any info greatly Rating: 5