with PPal - don't know about Scarlet Knight, but those are the ones that I've got that are Old Faithfuls for me. Also BlueGirl, Mardi Gras, JFK, Sheila's Perfume, Doris Tystermann, SolarFlash, .... I probably have a ton more that have survived my ineptitude, but brain's not functioning.
I prune the dead off in the early spring to get rid of winterkill, but other than that, they have to fend for themselves for the most part. I do feed at least twice a year, though, and I have to water during the summer because of our droughts. This year I'm not having to winterwater due to the snow.