These Rocket Larkspur flower seeds produce excellent-quality blooms on strong, upright spikes. Beautiful variety of colors, from white, to pink, to shades of blue. ‘Giant Imperial’ is gorgeous when grown in mass at the back of a border, against a wall or fence, or in a wildflower or naturalized garden. Rocket Larkspur is a great cut flower and can be used in the wildlife garden to attract butterflies and hummingbirds. It blooms from late spring to early summer, and in mild climates can continue through fall. Self-sows readily. Prefers cool climates of 65 to 70 F. 1/2 g. seed packet Scientific Name: Delphinium consolida Common Name: Rocket Larkspur 'Giant Imperial Mix' Blooms: spring/summer Height: 18-38" Color: shades of pink, white, purple, & blue USDA growing zones: 2-10 All seeds are non-GMO, and are grown/harvested in the USA.