This perennial is not only a good host plant for Monarchs, but is also a
great nectar plant for other butterflies. It's beauty is fantastic and
it comes in a number of different color shades varying from pure white
to dark pink.
I started mine from seed I bought from Burpees.
Do a search for "Cinderella."
The first year it won't do much so you'll just have to wait, but year
number two is spectacular. It's a show stopper.