I almost harvested 3 weeks ago when the top buds were much smaller. Almost all the hairs had turned brown except just 3 or 4 little white hairs at the tips of the buds. I decided to wait until they all turned brown and they started getting more and more new white ones and grew considerably larger. Still have plenty of white hairs on them. I have been pulling off the yellow leaves and it doesn't have a whole lot of leaves left on it. Any suggestions?