This flower is growing in Sunnyvale, CA.
SOLVED: Please ID
That is a rockrose. 1 of the more common colors. I had that exact one in the garden when I bought my house. 1st bush I removed when after it bloomed I saw what I would be left with for most of the year. In later years, I learned to appreciate them more.
Cistus x purpureus
Here is a relative I adore.