Colorado blue spruce is a medium to large pyramidal evergreen conifer native to the southern Rocky Mountains. The foliage has a bluish cast, ranging from bluish green to intense silver-blue. Their stiff needles are prickly when grasped and are pungently aromatic when crushed.
Colorado blue spruce prefers full sun and well-drained soil. Very content in cool, moist and fertile soils, it's proven quite adaptable. It can withstand many stresses, including drought, pollution, salt and wind. Use it as a specimen or screen. (info source: Learn2Grow.com)
Genus - Picea
Species - Pungens Glauca
Common name - Blue Spruce
Pre-Treatment - Not-required, but recommended
Hardiness zones - 3 - 8
Height - 3'-80' / 1m - 24m
Spread - 3'-30' / 1m - 9m
Plant type - Tree
Vegetation type - Evergreen
Exposure - Full Sun, Partial Sun
Growth rate - Slow
Soil PH - Acidic, Neutral
Soil type - Loam, Well Drained
Water requirements - Drought Tolerant, Average Wate
Landscape uses - Christmas Tree, Container, Feature Plant, Hedges, Mixed Border, Rock Garden / Wall, Screening / Wind Break, Topiary / Bonsai / Espalier
Germination rate - 70%
Leaf / Flower color - Blue Green, Gray Green, Steel Blue, Silver / --
|Germination||1. Soak the seeds in room temperature water overnight.|
2. Keep the seeds in refrigerated, soil-filled zip-lock bags for 2-3 months after the initial soaking, a process that mimics the natural dormancy period they would experience during winter months in the wild. Some experts recommend this method, and others say seeds may be planted immediately after soaking. If soaked seeds are not kept in soil, they may be refrigerated for up to 14 days before use.
3. Place a 3-inch layer of dry soil, such as peat moss or clean sand, in a small vase. Bury spruce seeds 1/4-inch below soil. Cover soil with mulch layer. Keep the vase in a partially shaded place. Water occasionally, so that the soil is always slightly moist.
4. Seed will sprout in three to eight weeks. For one year, keep seedling in partially shaded place. Water occasionally, so that the soil is slightly moist.
5. After one year, transfer the seedling to a gallon-sized vase or larger, maintaining a balance of dry, clean soil and mulch. The seedling may now be kept in full sun. Continue watering occasionally, so that soil is slightly moist. (info source: eHow.com)