1. Krystal Mendez Environmental Science & Natural Resources October 28, 2014/Period 3 Conifers

2.   Native to the Southern Rocky Mountains (Northwestern America)  Idaho, Wyoming, Utah, Colorado, New Mexico, and Arizona Geographical Origin

3.   Hardiness Zone: 2 to 7  Pyramidal conifer (tree)  Needled Evergreen  Height  30 to 40ft  Spread  10 to 20ft General Information

4.   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

5.   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

6.   Ornamental and or general landscaping  Symmetrical form  Waxy and bluish foliage  Christmas tree  Windbreak or screen  Reduce wind impact  Privacy Landscape Uses

7.   Low maintenance  Healthy unstressed spruces  Could be more of a medium maintenance if stressed  Pest problems  Potential diseases Maintenance

8.   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

9.   http://homeguides.sfgate.com/care-maintenance- colorado-blue-spruce-trees-35683.html http://homeguides.sfgate.com/care-maintenance- colorado-blue-spruce-trees-35683.html  http://plants.usda.gov/java/ http://plants.usda.gov/java/  http://www.missouribotanicalgarden.org/ http://www.missouribotanicalgarden.org/  http://www.na.fs.fed.us/pubs/silvics_manual/Vol ume_1/picea/pungens.htm http://www.na.fs.fed.us/pubs/silvics_manual/Vol ume_1/picea/pungens.htm References