In the fall I made 3 planters using a mix of peat moss, cement sand and vermiculite: two round ones for the English garden and this one to put on the pedestal in the herb garden.
It wasn't that I was unhappy with the planter that was on there last year. Quite the opposite.
The fountain of Mexican feather grass, with the trailing ice plant and narrow leaf zinnia, softened the pillar and gave a focal point to the garden.
I did intend to plant this new planter with the same plants, but unfortunately I didn't make the planter deep enough. The form I used was rather shallow and with 2" of hypertufa it has little depth.
That is why the agave is sitting high up, to give it as much room as possible for its roots to spread.
Meanwhile my old planter still has its plants which have been cut back. If they make a good recovery the old planter may find itself back on the pedestal.