Well, it depends on the strains genetics, if it originated close to the equator, how much light, if it has full sun or shade temperature, many factors. I start in a green house in full sun in February and supplement about 2 hours of artificial light and then I let nature do its thing. SEEDS all day though. I bring clones out in the end of may to beginning of june, when i feel there is enough light outside to keep them in veg. I try to run them indoors on 18-6 for a while and when i want to bring them out i rock them on 16-8 for about a week or so. They never really try to bloom. Some of the B-itches do a little bit, but it is because the strains tend to love to flower easily. Hope this helps. DO IT JUMBO.