I've been thinking about doing something like this, since I'd have to fence my yard to have an ordinary garden if I don't want deer to eat all my plants. Are t

I've been thinking about doing something like this, since I'd have to fence my yard to have an ordinary garden if I don't want deer to eat all my plants. Are there any concerns about levels of non-growth-limiting (or color-affecting) nutrients in container-grown veggies? Has anyone even looked into that?