Delphinium are a classic garden perennial. These plants are excellent for adding height to small spaces. Their tall flower spikes are easily recognizable when they come into flower in summer. When in flower, the spikes of these plants become heavy and should be staked to avoid toppling over in rough weather, especially taller varieties. Newer hybrids are longer lived than some of the more traditional cultivars.

(Photo courtesy of Walters Gardens, Inc.)