A_Aronanswered grow question 2 years ago First thing, always check your soil pH first. Do a slurry test. If pH checks out fine, then I’d say it’s just a simple lack of nitrogen. Not knowing how far along you are in flower, it’s hard to give advice. If you’re 4 weeks or less of flower, up your nitrogen amount just a little. Too much and you can slow down or even stop bud growth. But just a little more will help keep the plants going until the end.