The Rose City
If you're ever in Portland, make sure you visit the Portland International Rose Test Gardens (they don't have a great website, but some of the information is good). I love going up to the gardens to walk, read, watch people play tennis - I can find any reason to spend time there.
On one of the first sunny weekends in May I dragged my husband to the gardens even though we were both pretty sure the roses couldn't possibly be blooming. We lucked out and caught a few early blossoms.