100 Seeds, Bloodflower / Mexican Milkweed (Asclepias curassavica) Seeds by Seed Needs Quality Bloodflower seeds packaged by Seed Needs. Intended for the current and the following growing seasons. Bloodflower will produce clusters of beautiful red & yellow flowers. The plants themselves grow to a mature height of about 18 to 36 inches tall. Bloodflower is categorized as an annual flowering plant. Annuals will grow quickly, bloom profusely and later die with the first killing frost. Each seed packet measures 3.25" x 4.50" in dimension. The front displays a colorful illustration of the flower and the back displays detailed sowing instructions to grow them. All Milkweed 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.