High Marcwth, keep giving the grow nutrients till the plants are in full flowering mode. You want to keep providing the plant with (N) Nitrogen till it completely stopped growing. This is when the buds will really start to swell (about 3 weeks from now). You still want to provide the plant with just a little (N) Nitrogen so do not stop giving it completely but a really small dose will do from then till harvest. Happy Growing Buddy!