Depending on the strain, a plant can have the growth spurt when the photoperiod changes from vegetative to blooming. It can range from double to triple the size it initially was in vegetation.SO my plant is 3 weeks old and has about 4 sets of leaves with lil leaves growing on those nodes. The whole plant is about 4.5" tall. I am on a 18/6 light schedule. If i switch to the 12/12 will the plant grow a lot taller and begin flowering?