Plant Profile

Picea pungens (Blue Spruce, Colorado Blue Spruce)

Blue spruce is a very slow growing evergreen from Colorado. Got it name form it's leaf color. Needle leaves are prickly when touched but have nice aromatic smell when crushed. It has a perfect pyramidal shape. It can withstand many stresses, including drought, pollution, salt and wind. Use it as a specimen or screen.

Landscape Information
Botanical Description
Horticulture Management

By Gmihail at Serbian Wikipedia (Own work) [CC BY-SA 3.0 rs (http://creativecommons.org/licenses/by-sa/3.0/rs/deed.en)], via Wikimedia Commons
By USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. ([1]) [Public domain], via Wikimedia Commons
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By Jeffrey J. Witcosky, USDA Forest Service [CC BY 3.0 us (http://creativecommons.org/licenses/by/3.0/us/deed.en)], via Wikimedia Commons
By Opioła Jerzy (Poland) (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons
By USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. ([1]) [Public domain], via Wikimedia Commons

By Gmihail at Serbian Wikipedia (Own work) [CC BY-SA 3.0 rs (http://creativecommons.org/licenses/by-sa/3.0/rs/deed.en)], via Wikimedia Commons

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French Name: Épicéa bleu

Arabic Name: تنوب شائك

Pronunciation: Pi-see-uh PUN-gens
Plant type: Tree
Origin: Western United States
Heat Zones: 1 to 7

Hardiness Zones: 2 to 8
Uses: Screen, Hedge, Topiary, Bonsai, Espalier, Specimen, Border Plant, Container, Windbreak
Size/Shape

Growth Rate: Slow

Tree Shape: Pyramidal

Canopy Symmetry: Symmetrical

Canopy Density: Dense

Canopy Texture: Fine

Height at Maturity: 15 to 23 m

Spread at Maturity: 8 to 10 meters

Time to Ultimate Height: More than 50 Years

By Gmihail at Serbian Wikipedia (Own work) [CC BY-SA 3.0 rs (http://creativecommons.org/licenses/by-sa/3.0/rs/deed.en)], via Wikimedia Commons
By USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. ([1]) [Public domain], via Wikimedia Commons
By Kousvet (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
By Jeffrey J. Witcosky, USDA Forest Service [CC BY 3.0 us (http://creativecommons.org/licenses/by/3.0/us/deed.en)], via Wikimedia Commons
By Opioła Jerzy (Poland) (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons
By USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. ([1]) [Public domain], via Wikimedia Commons

By Gmihail at Serbian Wikipedia (Own work) [CC BY-SA 3.0 rs (http://creativecommons.org/licenses/by-sa/3.0/rs/deed.en)], via Wikimedia Commons

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Foliage

Leaf Arrangement : Spiral

Leaf Venation: Nearly Invisible

Leaf Persistance: Evergreen

Leaf Type: Simple

Leaf Blade: Less than 5

Leaf Shape: Needle

Leaf Margins: Entire

Leaf Texture: Waxy

Leaf Scent: Pleasant (Lemony)

Color(growing season): Blue-Green
Flower

Flower Showiness: No
Trunk

Trunk Susceptibility to Breakage: Generally resists breakage

Number of Trunks: Single Trunk

Trunk esthetic Values: Not Showy
Fruit

Fruit Type: Cones

Fruit Showiness: Yes

Fruit Size Range: 3 - 7

Fruit Color: Brown

By Gmihail at Serbian Wikipedia (Own work) [CC BY-SA 3.0 rs (http://creativecommons.org/licenses/by-sa/3.0/rs/deed.en)], via Wikimedia Commons
By USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. ([1]) [Public domain], via Wikimedia Commons
By Kousvet (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
By Jeffrey J. Witcosky, USDA Forest Service [CC BY 3.0 us (http://creativecommons.org/licenses/by/3.0/us/deed.en)], via Wikimedia Commons
By Opioła Jerzy (Poland) (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons
By USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. ([1]) [Public domain], via Wikimedia Commons

By Gmihail at Serbian Wikipedia (Own work) [CC BY-SA 3.0 rs (http://creativecommons.org/licenses/by-sa/3.0/rs/deed.en)], via Wikimedia Commons

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Tolerance

Frost Tolerant: Yes

Heat Tolerance: No

Drought Tolerance: Yes

Salt Tolerance: Moderate
Requirements

Soil Requirements: Loam

Soil Ph Requirements: Acidic, Neutral

Water Requirements: Moderate, Low

Light Requirements: Full, Part
Management

Toxicity: No

Invasive Potential: No

Susceptibility to Pests and Diseases: Yes

Pruning Requirements: Little needed, to develop a strong structure

Fruit/ Leaves/ Flowers litter: No

Surface Rooting: No

Life Span: More than 50

Edible Parts: None

Plant Propagation: Cutting