How can this be used with potting soil? I use a large container to make my potting soil mixture for my succulents. The container has drain holes to keep water from setting in it, though I try to keep it covered from the rain.
Can the potted plants be watered with a smoothie? Or is it too raw? Is there a way to age the smoothie for use with potted plants?

I really like this idea of yours and was just wondering how I could use it with potted plants.

I've never tried it on potted plants and would think it might be too strong. If the pots were very large and outside, perhaps a really diluted smoothie might be OK. I have such sandy soil so I'm just interested in adding nutrients to the flower beds or my raised veggie beds.