Utilize the attached Home Grow nutrition chart provided by Coast of Maine.
 
It explains nutrient cycles when using their OMRI listed Stonington Blend Organic Growing Mix. This “super soil” is loaded with nutrients making it very easy for someone to home grow (and most other plants) without a lot of other fertilizers or additives.
 
As you can see, the larger the container you grow in, the longer you can go without adding additional fertilizers.