400W to 1200W 4 Weeks into Flowering JH Proud of First Grow! w/ some questions

Hey! I'm four weeks into flowering with my Jack Herer. I grew with a 400 W HPS until one week ago when I bought a hood, and two more 400's for the rest of the flowering cycle. I have 1 Jack and 6 autos under the lights, Afghan Kush, Kush Ryder, 60 Day Wonder, Green-O-Matic, Hercules, and Goliath.

I have been using Botanicare Flower and Liquid Karma along with epsom salts and molasses. If a few of my lower leaves are forming necrotic spots and yellowing at tips and eventually yellowing over the entire hand of leaves, what could be the problem? Any Ideas? Thanks!

And how many weeks do you think are left, and how much bigger can the buds get in that time? I'm a little nervous about the size of them but pistols are still forming on the main stalk but look a little brown as soon as they form.

no worries. keep em healthy as long as you can they will get bigger buds

Hey Buddy! Sounds like your doing an awesome job! Great question about the yellowing leaves. A lot of growers have this question. During flowering you plant will draw energy from those lower leaves that aren't receiving as much light anyways to feed the hungry flowering girl! Thus, the leaves will yellow and fall. Some growers just snip them off once they yellow. Dont worry, sounds like your doing great though. POST SOME PICS!

Also, BE PATIENT...watch the trichromes to decide when to harvest...harvesting early can ruin your entire crop.

Hope i was some help, feel free to ask more questions.