Asclepias sullivantii 

Prairie Milkweed

Still new to my gardens, grown from seeds sourced from Prairie Moon Nursery. https://www.prairiemoon.com/asclepias-sullivantii-prairie-milkweed-prairie-moon-nursery.html

This species is described by Prairie Moon as being similar to Common Milkweed while being slower to spread, which could make them a bit more suited to urban and suburban garden settings.

They are described as growing to roughly 3’ in height and recommended spacing between plants is 1’-2’.

Please check out the Prairie Moon listing at the link above for more details.

Photo by wackybadger Via Wikimedia Commons