Any advice on how to plant/arrange Colorado Blue Spruce please?
Hi, newly registered here but have been reading for a while. I need to plant lots of Colorado Blue Spruce to set up a wind-block, and to block the view of my neighbors yard. The piles of junk are awful and this is right in front of my kitchen window.
I have decided on the CBS due to our zone 5, close proximity to highway (therefore lots of road salt spray) and full sun conditions.
Ideally, the trees should block out 264' on the North side of our acre, then possibly a few more meeting them at the Northwest corner. Hope this makes sense.
My questions are:
How far apart to plant them to get ideal blockage but not kill lower branches? Staggered or straight line?
Am I better off to plant this spring, as soon as possible or next fall? Our temperatures are pretty extreme here.
I know I need to mulch, but have been reading mixed information on whether or not to fertilize, add peat moss, etc.
Any suggestions would be greatly appreciated. Thanks!