This is growing a few blocks away, suburb west of Chicago. It is a very woody shrub. The bumblebees loved it, there were very many of them. It is very fragrant.

I was able to get identification with The Victorian Salvia Study Group in Australia.

Teucrium fruticans, native to the Mediterranean and introduced to California.

(From their website)
http://salvias.org.au/
If anyone has Salvias in their garden they don't know the name of or plants they can't identify, please take a photo and email it to [admin removed email]. I can help you.

Here is our database entry for Shrubby Germander (Teucrium fruticans)
I moved your thread to the Plant ID forum where many members help with all kinds of ID's.

I also removed the email, never a good idea to post an email address in any public forum.

Looks like Caryopteris to me.

It was hard to tell as there are no closeups of the blooms but I do believe you are correct. W don't have many images of a gray cultivar other than this one Bluebeard (Caryopteris x clandonensis Sterling Silver®) but the images show that the leaf shape and also flower heads as a match. The minimum zone makes more sense too. I would say placing the images it in the generic entry would be appropriate.
Bluebeards (Caryopteris)

Thanks so much.

A better close up picture of Caryopteris in Berwyn, Illinois, 18th and Highland Avenue.