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Delphinium ajacis (Ranunculaceae)
A winter annual, native to southern Europe, it has naturalized throughout the United States. Larkspurs are distinguished by a backward projecting spur, formed by the upper petal of the flower. Tightly compact blossoms are arranged on spikes in shades of pink, white, and deep blue. Prefers full sun to partial shade in very well-drained soils. CAUTION: The seeds and leaves of the Rocket Larkspur are poisonous if consumed.
Average planting success with this species: 80%