I've actually ordered a couple of that specific salvia to try in 2 of my hanging planters this year. I saw it when purchasing seeds from Select Seeds and was intrigued. Petunias always fizzle out for me by mid-August, even though I trim them back a bit to try and promote new flowers. So I thought the Hummingbird Falls might be perfect instead, and might plant some alyssum with the salvia so it cascades a bit more.