I started growing these last year and love them!
Mine are happy on the deck in bright light, but very little direct morning sun. Heat and humidity doesn't seem to bother them, and I water them no more often than many others.
Oh, and they're also pest-free here, and they're fast growers.
Last year. These self-seeded in my half barrel for this year. Yay!
I'm also growing Chilean Monkey Flower (Mimulus naiandinus) this year.