Wow Greg, that is some bloomfest going on with Averil. The bloom bed is beautiful.
Dave, from Perennial Obsessions, has been gathering all their blooming semps into a bloom area in preparation of pollinating. He sure had some interesting plants to work with. Can't wait to see what he comes up with from the crosses that will be made.
Patty and Bev, as soon as you are sure that they are bloomers, cut them off. That will force the plant to put out more. Cut each bloomer as soon as you are sure.