So I have been growing a plant from a seed i found in a bag. Its been under the 12/12 light cycle since about christmas. When would be a good time to harvest. The lower fan leaves are dying and looking weak, while the leaves with bud all look good. It doesn't look like a ton of yield since its my first grow and started as a fun thing. But i want to reap the benefits of it and want the best. So any help needed. The plant is about 2 1/2 feet tall. I have no idea if it is an indica or sativa, considering it was a seed from a bag. Any help would be needed.