Package of 40 Seeds, Chocolate Sunflower (Helianthus annuus) Non-GMO Seeds by Seed Needs Quality Sunflower 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. Chocolate Sunflowers will grow to a mature height of 48 to 60 inches tall and will produce flowers that are 4 to 6 inches in diameter. Categorized as an annual flowering plant, this Sunflower will grow quickly, bloom profusely through the summer months and later die with the first killing frost. The Chocolate Sunflower displays several smaller heads that branch off of the main stem. All Sunflower 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.