"I see you are in Idaho. Do you live where pine needles are available?
Here in Spokane Ponderosa is the dominant species and folks mulch
blueberries with them: raises Ph ........
and keeps the earth tolerably cool. You'll need to mulch deep to deter
weeds. That, of course, is in addition to prepping your soil.
Dave Liezen, Spokane z6/5
Probably a brain-phart Dave.. Lowers pH is correct. ;>)
Cool ground is probably a plus, as moist ground is desirable for them.
Also softens the footsteps.. as they dislike having toes stepped upon,
and seem to be shallow rooted, ta' boot.