trillium? poking out of mazanita
Milkweed?
sunflower
Buckwheat?
Indian paintbrush
Chronicles of growing plants in Northern California - USDA Zone 9 (Sunset Zone 14).

My favorite combo in this planter is the Blue-eyed grass and Euphorbia blooms that compliment each other so well...
Last July, I went to a garden that had an interesting Manzanita, I asked if they propagated it in their nursery, and they said "no, they couldn't propagate it from cuttings." to which i thought "BS." So, since no one was patroling the garden to tell me not to - I took a small twig off the bush (yes - I know, I'm a terrible person) and tried to propagate it at home. The twig made about 6 cuttings, two of which never sprouted roots, and three of which I killed by letting the growing medium dry out in the fall. One survived, and now it has a bud on it! I'm so very happy about that. Hopefully it will make it to an actual plant.
I went on hike in the sierra mountains this weekend, and saw lots of gorgeous wildflowers. Here's a photo of some buckwheat (red maybe - though it was definitly pink in color) that was growing all over the trails.
I went to the Sacramento Zoo's King of Feasts event on Saturday night, and won the bidding on a collection of CA native plants from Cornflower farms. I have never actually been to their nurseries, but have been meaning to go for quite some time. They are supposed to have a strong selection of ca natives, and based on their donation to the zoo for the auction, I would agree.
My winning bid got me a Bearberry, a California Fuschia, a Red buckwheat, blue idaho fescue, allen chickering Sage, and a hummingbird sage. They also provided an information sheet to go with the plants.
I have a few wine barrels that I planted with mostly native plants last summer, this is #1.
This one did the best, I think because it didn't get quite as much late afternoon sun as the others. In it there is sticky monkey flower (orange blooms), blue-eyed grass, euphorbia, the bat faced cuphea, and a delphinum(not blooming in this picture). It also had carrots that didn't do so well...but I'm thinking I didn't leave them in long enough.
I bought three little 2" pots of blue-eyes grass at a local native plant nursery last year, and planted them in a wine barrel in the front yard. They hung on through the summer, but were never more than a few little 4" tall blades of grass in the pot. but after going through the winter, early this spring they exploded into these 12" tall blades with tons of beautiful blooms! They look especially good with the orange sticky monkey flower that blooms at the same time, and the euphorbia with the bright green bracts.