A southwestern native, Palmer's penstemon has prickly gray leaves and thrives under very dry conditions. The flowers are very large, reminiscent of snapdragons, with a sweet honey fragrance. They are a pale pink color and are very showy in the spring. It is one of the largest perennials. Plant it somewhere dry, where you can enjoy the delicious fragrance.
Plant in a very well drained soil, with the crown an inch or two above the surface. Deadhead to keep tidy, but let a few flowers go to seed so you have plenty of seeds - the plants, though they are perennial, are somewhat short lived.