Colorado Spruce - Picea pungens
Colorado Spruce is the most widely planted evergreen in North Dakota. It prefers heavier soil, full sun, average moisture and clean cultivation. Colorado Spruce will reach a height of six feet in eight years on a good site. Growth rates after that should exceed one foot per year.
Colorado Spruce is probably the most drought tolerant of all spruces. Color of Colorado Spruce varies from deep green to silver-blue. Seed comes from a source that is very winter-hardy and will do well throughout the Northern Plains and Southern Canada.
Plant Colorado Spruce eight to twelve feet apart in a windbreak. Mature height is about 60 feet. Colorado Spruce are available as bare root or container grown and sold in lots of fifty.