We’re big fans of Asclepias and have three species growing in our garden. We have a few varieties of Asclepias curassavica, a tender perennial native to the Caribbean and Central and South America often referred to as blood flower. We have several Asclepias tuberosa, butterfly weed, a hardy perennial native to our region. We just bought a few plants of a variety of Asclepias incarnata called ‘Ice Ballet’. The species is generally pale pink but this variety is a creamy white. It’s also a native to the area and is known as swamp milkweed. These will go in a spot that gets very wet when it rains, as these don’t mind that and there are a lot of things that won’t grow there.