100 Fresh Seeds Rocket Larkspur Grow Imperial Mixed, Rocket Larkspur from fresh Delphinium consolida flower seeds. Rocket Larkspur, Imperial Mixture consists of a several colors including, pink, blue, lavender, rose and white. The plants themselves grow to a mature height of about 12 to 36 inches tall. Each stem produces rows of fluffy blooms that are roughly 1 to 1.5 inches in diameter. Categorized as an annual flowering plant, Rocket Larkspur will grow quickly, bloom profusely and later die with the first killing frost. Rocket Larkspur is known as a generous re-seeder, and will more than likely establish the following year from seeds that drop to the bare ground beneath. This colorful mixture is also known to bring in an array of beneficial insects as well, such as butterflies, bumblebees, hummingbirds ladybugs. These attractive plants can be used in many floral arrangements and bouquets as it makes an excellent cut flower. Because they grow to a taller height, they are best used along fences, walls in the back of borders. Type: Flower Color: Mixture Height: 12" to 36" Tall Width: 12" to 14" Spread Season: Annual Zones: 3 to 9 Environment: Full Sun / Part Shade