Any size, any plant show us what you have growing in any container.
I posted a pic of these earlier in another thread. Can't remember where. Here they are after a bit of time to grow in. The Astilbe is going to bloom soon. There are two types of Astilbe, a heuchera, mini hosta, fern, some dwarf begonias.

I just love these big blue strawberry jars and usually plant them with succulents but this year I felt it was time for a change. Pink germanium and alysum.

Just re-potted this tropical passi, something a bit bigger and more decorative with a slightly taller trellis that I know it will grow over in a very short time.