Nursery and garden design explained - sunken pots for perennials overwintering

A look at the pot in pot nursery that is developed into sunken pot design, how it works, how i propagate seeds, and many other design elements of my plant nursery!

[MaureenW]

Can this work with mint without spreading?

[shamanking]

I'm little confused why don't you put them in the ground instead of using the pots ???
whats the difference in ground with pots and without pots ???