i've read that plants double in size when put on the 12/12 cycle. in my expirience (two grows) the plants stoped gaining hieght around the third week of the 12/12 cycle and grew only flowers and sugar leaves from then on. which is normal? during the last seven weeks of flowering the plants, at most grew half of an inch. i raised three kinds and they all stopped growing around twentyfive days into 12/12. i just looked in my journal and the plants did double in size in the first three weeks of 12/12. so, my question changed a little. do plants always stop growing (stretching) after three weeks flowering?