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Compost + chemical fertilizer while flowering.


New Member
Hello. I was wondering if I could use both compost and chemical fertilizer at the same time. I grow white widow, 1 week into flowering. For more info about my growth check my signature,please. I allready have compost in my soil mix and I would like to add some chemical fertilizers. I have one fertilizers with npk 4:6:6, I'm thinking to use it for next 2-3 weeks and then I would use 13:40:13 from then, sometimes maybe switch to 4:6:6 because I think 40phosphatus is kinda too high. What do you think?


New Member
Yes you can use both. Not knowing how much NPK is in your compost may make it difficult to know how much synthetic nutrients to use though so be careful and go in small increments.
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