Name: Suzanne/Sue Sebastopol, CA (Zone 9a) Sunset Zone 15
Not sure if it was asked about in the Plant Database Forum in one of the many threads, but when the search function is complete, I am sure that's one of the options Dave will add but it won't work until the database has all the needed input in place.
I actually made a little beta version of this advanced search, but it's still not ready for me to show anyone else yet. There keeps being other things that need done first!