You may also consider
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Concorde Barberry
Deep Purple Foliage, Upright, 2', Zone 4 -
Tall Blue Rabbitbrush
Blue Leafed Version, Late Summer Yellow Flowers, Drought Tolerant, 3-6', Zone 3 -
Common Mountain Mahogany
Native, 4-8', Zone 2 -
Siberian Peashrub
Hardy, Drought Tolerant, Yellow Flowers, 15-20', Zone 2


