Doubtful Knight's-Spur (Delphinium ajacis) produces striking spikes of blue, purple, pink, or white flowers that provide vibrant color and attract pollinators during late spring and early summer. This photo was taken in the Backyard Farmer Garden in Lincoln, Nebraska.
Doubtful Knight's-Spur (Delphinium ajacis), commonly known as Rocket Larkspur, is a cool-season annual prized for its tall spikes of colorful flowers and finely textured foliage. Native to the Mediterranean region but widely cultivated throughout North America, it blooms in late spring and early summer with dense flower spikes in shades of blue, purple, pink, and white. The nectar-rich flowers attract butterflies, bees, and hummingbirds, making it a valuable addition to pollinator gardens.