My boyfriend and I are growing indoors. We have 5 plants that are 3 months old. They have been on constant light until last week. Now they are on 20 hours and off 4. The plants tops have 9 leaves. I thought seven was the target number?
Keeping the lights on 24 hours a day might make plants grow a little faster. But I think you will be doing fine with 18 hours of light. Plants need a bit of time without light. It is when they process a lot of the chemicals in their cells.
Leaves with 9 blades are normal for plants that are strong healthy and growing well. The number of “fingers” on your leaves means they are growing well. Also look for a healthy green color and the margins of the leaves should not be discolored or distorted in any way. Discoloration and distortion signify fertilizer imbalance and are generally treated by flushing out excess fertilizer salts.