Jef79answered grow question 5 years ago Hello.. Hope you are well.. Personally i dont switch to bloom products until 14th day of 12/12..this will help keep her nitrogen will still actively growing and getting that shine on her leaves.. I grow in hydro and even wen she's 12/12 i never switch to bloom until 14th day.. She still wants nitrogen at this point.. Usually 2-3wks into 12/12 she start to pistolate and thats wen she actively seeks more P&K.. Many people do different things but this is wot i do and it works great for me.. Just never give her more than she needs.. Stay safe n gud luck.. 👍🍀