I did start a bunch of 'Punch Bowl' from seed in early March and they have been blooming for about 2 weeks now. So I'd say 6 to 7 weeks if you have warm weather and lots of sun. But you're in San Francisco? Hmm, maybe a bit longer?
I must say I'm a bit disappointed in the color, as I was thinking it would be something quite different from your regular Gaillardia. They're a little softer red/yellow than the usual, but at a casual glance (and I'm looking out my window at them as I type) they look very similar to the original. Although from this bunch of seedlings I did get three plants so far that have entirely pale yellow flowers! I love pale yellow, so I might just collect some seeds from those.
