What I did last spring was veg a couple plants under flouros for about 3 weeks then planted them outside in early may. the one female grew to over 7.5 feet tall, but the frost came a bit early in vermont so i had to chop it before it was done flowering. I strongly suggest this method because there is a minimal amount of work and if you tend to the plant and feed it good nutrients, etc, you'll still get some good buds.