I'm doing a closet grow in soil. I'm using Foxfarm Ocean Forest soil. Do I still need to use nutrients? If so, how long before I need to start adding them?
Yes, it is best to use nutes even when using a high grade soil, especially during flowering. I usually start my nutes about 4 weeks in from seed, usually after transplanting to bigger pots. I use cal/mag with every other watering throughout the grow . less