This is a hard time of year for semps around here. The combination of heat and moisture can make them rot.
I find they do best if let to dry out very very well between waterings. I water in the late evenings so they are dry on the surface by next morning.
And I try to keep them out of the mid-day sun.
Those that are in hypertufa do the best because it's porous and seems to stay cooler than plastic. . As time goes on, more and more of my potted semps are ending up in hypertufa. I think there's at least 40 hypertufa pots with semps out in back now.
Although, come to think of it, I haven't lost any in plastic pots this year. Those poor semps have been the same plastic pots for a few years now. They must be all tough ones.
I've been lazy about watering the semps this year and I think that may be why they've kept such fantastic color. I've still got a lot of red in the garden.
Some that come to mind are Jeanne d' Arc Black Prince, Pacific Shadows, Legolas (drak red/purple) and Royal Ruby.
Ann Marie, Georgette and Aglow are still partially red.
