I was scrolling through old threads and saw that Char ran this subject back in 2017. I thought it would be fun to have an update, as a way of kissing 2020 goodbye...
Hard to pick just 10, but here goes. More or less in order of appearance
Wineberry Candy, prolific and beautiful, blooms from early to late in the season
Margaret Seawright
Another outstanding, floriferous plant, early bloom through mid season
Alnilam, super old cultivar from the 40s, excellent plant habit
Paper Butterfly, super bud counts, blooms its little head off for a month or more
Fuschia Dream, super flower power on this one
Demetrius
Just an old favorite
Paco Bell
Not totally sure...was sold to me as Cherry Cheeks, which it definitely isn't. I'm pretty sure it's actually a Lake Norman Spider, but whatever it is, wow!
Tiger Blood, long lovely season out of this one
Dollhouse, a lovely mini
These are the plants that really went for it this summer, blooming with lots of flowers for long periods of time
Here's a better photo of Fuchsia Dream,