During flowering the plant needs lots of P, regardless of temperature. 15-30-15, or 5-20-10, or 2-4-3, or something similar, with trace elements should do it.
smoknjoe Reviewed by smoknjoe on . whats the best fert. ratio percent npk for flowering im using 15-30-15 now.but was using 12-55-6 just wondering which is better for flowering Rating: 5