I bought this Showy Milkweed ( Aesclapias speciosa) from Annie’s Annuals about 5 years ago for a clients garden. It sulked, for years. I actually thought of pulling git out on several occasions, but out of laziness left it ( after all it was rather innocuous) . This year for whatever reason it went absolutely crazy, sending up shoots in a circle nearly 5 feet wide.

And those shoots bloomed!

You can see why they call it “Showy Milkweed”