Del Mar Blvd. between Lake Avenue and Arroyo Parkway is purple with the bloom of Jacarandas right now. Ben posted a pretty shot at the sky is big in pasadena. I tried to get the effect of the avenue of trees—bright purple along both sides of the road, as far as the eye can see. But you have to stand in the middle and I didn't want to get arrested. (Letty would call me a piker.)
If you're a local, you need to get on your bike or in your car and take a ride down Del Mar—maybe down and back—while the Jacarandas are in bloom.