Grow Perennial Common Milkweed to help save the endangered Monarch Butterfly. Monarch numbers and milkweed plants are down 90% from what they once were. Milkweed plants are the only source of food for the monarch caterpillar. Make a difference by planting milkweed! A vital superfood for monarchs and other pollinators, Common Milkweed grows 36–48" tall with brilliant balls of fragrant pinkish flowers. Cold stratify seeds for 30 days prior to direct sowing in spring, or plant in late fall. Grows easily in full sun. Water requirements range from dry to medium moisture. In the United States, Common Milkweed (Asclepias syriaca) is native to: AL, AR, CT, DE, GA, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NH, NJ, NY, NC, ND, OH, OK, PA, RI, SC, SD, TN, TX, VT, VA, WV, WI. Growing Instructions * Cold stratify for 30 days before spring planting * Or direct sow in late fall * Sow 1/4 inch deep * Space plants 30" apart * Prefers full sun or partial shade * Water requirements: dry to medium moisture Seed Information * Lifecycle: perennial * Sun Requirement: full sun / partial shade * Spacing: 30" apart * Depth: 1/4 inch * Bloom Season: summer * Height: 36"–48" * Seeds Per Packet: 72 * Seeds Per Ounce: 5,375 * Sowing Method: Direct Sow * Low Maintenance: yes Uses * Bee attractant * Butterfly attractant * Hummingbird * Pollinator * Cut flower Additional Information * Scientific Name: Asclepias syriaca * Packet Size: 3 ¼" x 4 ½"