Saw this great combination today at a grocery store plaza of all places. New Zealand Flax (phormium) with Oriental Poppies (papaver). I love how the salmon poppies pick up the pink edges of the New Zealand Flax leaves. Both colors really pop against the flax and the orange poppies practically glow. New Zealand Flax is pretty indestructible and I love this idea of it in a container, surrounded by changing waves of annuals weaving up through its spiky form.
Annie’s Annuals has about every color of poppy you could want. They are annuals, but they will very happily reseed for you.