Q: Zone 3 Asparagus?

Any suggestions or hard-earned wisdom?
I'm planting Jersey King & Purple Passion.
I have access to many cubic yards of composted cow manure (we're beef cattle ranchers), so that part is no problem.
The problem is that I want to use my most cherished micro-climate for my apple and cherry trees. I'm tempted to plant the asparagus out in a great site and at the same time, plant them a windbreak of raspberries on the north and east sides (my windward sides).
People in town have a hard time growing asparagus because they don't have a reliable snow cover all winter. They are at sea level. They get freezes/thaws with major ice. I'm at 1300' with good snow cover from ~Halloween to May Day. (It's May 19 today. I still have a one foot thick layer of ice on my lake. This is a late spring. When is Global Warming going to come to my neighborhood?)
Jan in Alaska USDA Zone 3
Bedouin proverb: If you have no troubles, buy a goat.

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