Seed Needs, Giant Star Columbine Mix (Aquilegia caerulea) - 500 Seeds Quality Columbine seeds packaged by Seed Needs. 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. Mckana's Columbine will produce star shaped blooms that are roughly 2 inches in diameter. These delightful, double blooms come in a plethora of color combinations including, white, yellow, blue, red & pink. The Mckana's Columbine Mixture will grow plants that mature to a height of 24 to 36 inches tall on average. The seeds can be grouped together in mounds of 4 to 5 for 1 complete plant, allowing the plants to spread about 18 inches wide. Aquilegia / Columbine plants are grown as a perennial flowering plant, meaning that they will establish a deep root system to regrow the following growing season. Most varieties of Aquilegia may not bloom the first year, however the wait is well worth it. Giant Star, Mckana's Columbine will begin to bloom within the first few weeks of the summer months. All Columbine 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.