Krystal Mendez Environmental Science & Natural Resources October 28, 2014/Period 3 Conifers
Native to the Southern Rocky Mountains (Northwestern America) Idaho, Wyoming, Utah, Colorado, New Mexico, and Arizona Geographical Origin
Hardiness Zone: 2 to 7 Pyramidal conifer (tree) Needled Evergreen Height 30 to 40ft Spread 10 to 20ft General Information
Medium to large in size Narrow and pyramidal with horizontal branching towards the ground Could possibly reach 100ft where grown naturally Four-angled blue-green to silver-blue needles point outward from multiple directions, sharp 1.5in long Cylindrical light brown cones (have flexible scales) 4in long Noteworthy Characteristics
Sun exposure Prefers full sun but tolerates light shade Water requirements Medium moisture Slightly xeraphytic Site requirements Grows beset in well-drained soils, acidic and rich Prefers cool climates, struggles in heat and humidity Requirements
Ornamental and or general landscaping Symmetrical form Waxy and bluish foliage Christmas tree Windbreak or screen Reduce wind impact Privacy Landscape Uses
Low maintenance Healthy unstressed spruces Could be more of a medium maintenance if stressed Pest problems Potential diseases Maintenance
Possibilities of needle cast, canker, and rust Needle cast: fungicide with active ingredient of chlorothalonil for chemical control Canker: cut diseased branches beck to the nearest laterals (cannot be efficiently controlled) Rust: reduce moisture on needles and spacing trees for air circulation Aphids, scale, budworms, and bagworms Control: chemical controls or horticultural oil and insecticidal soaps Spider mites can create substantial problems for the trees overall health Control: releasing natural enemies onto the tree (predatory mites), petroleum-based horticultural oils Pest or Other Problems
colorado-blue-spruce-trees html colorado-blue-spruce-trees html ume_1/picea/pungens.htm ume_1/picea/pungens.htm References