I have done it both way's over the last 20 years and my preference is 24/7 for veg cycle. There is no stress on the plant caused by 24/7 lights. Just look to Alaska and see how well their outdoor plants do when the sun does not set.

It does cost more money to grow 24/7 is it worth it? Only you can decide that either way the plant will grow.
Zandor Reviewed by Zandor on . small growroom strategy question.. I have a few plants in their seedling stage. Should I for the like of the plant give 24 hour light? and especially if only using flourescents? Rating: 5