The fountain in the picture above is about 18 inches in height. There's a pump nested in the base pedestal- flow rate is adjustable.
The top vessel fascinates me. Exactly the same glaze on both sides... but differing levels of reduction. Raku is so unpredictable!
I haven't installed plants in these specific pieces, but here's a fountain that we currently have in the front room of our house. The foliage is wooly thyme- an herb that seems to be pretty resilient in the face of variable water levels. Looks nice too... and you can even dust a bit on your pumpkin gnocchi if you feel the urge.