I live in a mountain valley in W Montana (Zone 5) and have had great luck with kale, pole beans, rhubarb, peanuts, onions, potatoes and carrots. I"m hoping to expand the veggie patch next year and try some other varieties.
My lilacs bloom in the spring, a variety of roses, peony and pollenators in the summer and lots of wildflowers and bluegrass: Clarkia, Yellow bells, sticky geranium, biscuitroot, lavender, bitterroot, balsam
root, snowberries, chokecherries, lupine and sagebrush.
Hope this helps, best of luck Ashish!