Seed Needs, Rocket Larkspur Imperial Mixture (Delphinium consolida) 1,500 Seeds Quality Rocket Larkspur seeds packaged by Seed Needs. Intended for the current and the following growing season. Packets are 3.25" wide by 4.50" tall and come with a full colored illustration on the front side, as well as detailed sowing instructions on the reverse. 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. 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. 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. All Rocket Larkspur seeds sold by Seed Needs are Non-GMO based seed products and are intended for the current & the following growing season. All seeds are produced from open pollinated plants, stored in a temperature controlled facility and constantly moved out due to popularity.