Thanks
@chelle
I had read that they like cool weather. Last year I grew snapdragons for the first time which also prefer cooler weather and they did really well, but we had the coolest summer we have had in years.
The ones that did the best received good morning sun, and then shade after 2:00, the were fronted with densely planted impatiens which shaded the bottom 1/3 of them. That may be the way to go with the salpiglossis.
How tall did yours get? any need for support? My snaps did.