Hey can anyone give me some help regarding using Humboldt Big Up Powder growing outdoors in soil. Should I just go with the same ratio as if I was growing hydro? 1 tsp per gallon? If you do not know for sure please don't guess as I know it is easy to burn my plants with this. I have auto's and regular plants also will use on suto's first to make sure I got correct mixture. any help is greatly appreciated.
