I once grew a plant in a sunny windowsill mid spring and it started flowring at about 6" tall. It finished out at less than 10" tall. The buds were some darn good smioke and even the leaves weren't too bad. The plant was only grown from miscellaneous bag seed at that! The big problem.......I got verrrry little!

If you're growing under lights 24/7 and can possibly do so, wait the recommended 8 weeks till the preflowers show. You'll get a lot more for your efforts.

To quote another board member: "Don't be hasty; waiting makes it tasty!"

Have fun and good luck!