Hmmm...that does look like a really cool book...One I wouldn't mind adding to my collection though it is not for my area. I'm sure there is a lot I could learn for it. The ad states it ships for FREE with Super Saver Shipping. whatever that means... Sue Here is a link that might be useful: Encyclopedia of Northwest Native Plants for Gardens and Landscapes at Amazon

Waxmytle is a hypermaritime plant that grows in the open in the wild, mostly right behind the beach. Seems to be quite resentful of shade, stretching out in the fashion of a shaded pine. A clipped western hemlock hedge might work better, unless it fills up with wooly adelgids. (Yes: everything comes with limitations). Grand fir also makes a nice clipped hedge, but is less shade tolerant and fine textured than hemlock (also gets adelgids, too).

A friend of mine who created a deer "hedgerow" to try and keep them in the ravine rather in her garden, considered mock orange one of those the deer would browse but not kill, and that once it was established at least, was able to withstand their affections for it. Perhaps create a cage for it from chicken wire or something, so that at least initially, it has space to grow, and the deer can only nip the outlyers? For what its worth, it tends to like similar conditions to your Ceanothus- sunny edge to open areas, preferably on the dry side once established. Happy with summer irrigation, but once going strong shouldn't need it. In shade the plant will grow well, but not necessarily flower too well. On cascara as a moist forest species, I beg to differ. It is one of several trees folks taking care of the Mima Mounds, Glacial Heritage and similar prairies in the south sound area are weeding off the mounds and out of the meadows. It can and will take dry conditions very well. However, it does tend to change how it looks in dryer soils- smaller leaves, more compact habit. Osoberry will do the same, though it is much more dependent on moist spring soil than the cascara. Cascara does NOT like wet feet either. It will do ok along the edges of marshy areas, but rarely seeds itself into saturated soils. Of course, in the garden it will typically get more moisture than it tends to in the woods anyway. As far as Anna's not being native, well neither is the honey bee, lol. At least the Anna's is an American Native. Honeybees are old world bugs, however treasured by many. Both enjoy a winter nectar source.

There are many areas in the PNW where soil pH is fine for blueberries. You may be well advised to analyze your soil before attempting to alter the pH. In my experience the best way to lower soil pH is to add agricultural sulfur. Given the right conditions, microbial action on the sulfur will produce acid over time. Most other soil amendments are not likely to produce any long term results. Composted organic material will be good as an amendment if your soil is poor and sandy. More organic matter is better. I am having very good results raising a number of blueberries in split oak barrels. The growing medium is 100% peat moss with some 10-10-10 fertilizer and powdered ag sulfur mixed in. They are in their third year now and producing a great crop this year.