I have grown 2 plants in pots from ruderalis indica seeds bought from Holland, which are designed for low light intensity. They are 6 months old and just starting to form flowers. How long til they are ready? They are being grown undre natural light. I have been using Baby Bio twice a week & they are developing brown sopts on leaves. Too much fertiliser? Is it best to bring them in & put them by a window to prevent pollonisation or do they need more light?