All the Rubekias getting ready to open

Hi Mikec,
are these hard to grow, they look fantastic!

Not hard at all Ediegirl. Very hardy and the clumps get huge quickly. I started out with four quart pots five years ago and divided them over the years and now I have at least 15 large clumps. Wjat I really like about them is that once the flowers open they last forever until the frost gets them.