Asclepias Curassavica is commonly called Bloodflower, Tropical Milkweed or as I call it, "The Marriage Saver" because it guaranteed not to be invasive in MN. This is an annual that loves the sun, grows 2 - 3' and forms seed pods that can be planted in the Spring. Monarchs and caterpillars love it

Red Tropical Milkweed - Asclepias Curassavica