
YELLOWSTONE ARBORETUM
" Stewards of the Natural Environment "
Billings, Montana @ ZooMontana


Engelmann Spruce
Catalogue A# 0099-025 PZ31
Catalogue A# 0098-091 PZ31

0098-091
Picea engelmannii
Family: Pinaceae
Origin: Western North America-BC to New Mexico
Location: South plaza picnic shelter-Eagle backdrop
Number in accession: 5
Note: Trees prepped for pine bark beetle 2018
0099-025
Picea engelmannii
Family: Pineceae
Origin: Western North America-BC to New Mexico
Location: same as above
Number in accession: N/A
Note: Seed origin-Lolo National Forest

This 17 inch Engelmann spruce provides overall benefits of: $98 every year.
CRITIQUE
Cytospora canker, caused by the fungus Cytospora kunzei (also known as Valsa kunzei var. piceae), is the most prevalent and destructive fungal disease of Norway and Colorado blue spruce. Occasionally, Cytospora canker is found on Douglas-fir, hemlock, and larch. Susceptibility varies widely among species, but generally trees under stress or growing outside their natural range are more prone to the disease. Cytospora canker rarely affects trees less than 15 to 20 years old. Infected trees are weakened substantially, but are rarely killed.
Tree or Plant Type: Tree
Foliage: Evergreen (foliage year-round)
Native Locale: North America
Landscape Uses: Screen, Shade tree, Specimen, Windbreak
Size Range: Large tree (more than 40 feet)
Mature Height: 40-60 feet
Mature Width: 10-20 feet
Light Exposure: Full sun (6 hrs direct light daily), Partial sun/shade (4-6 hrs light daily)
Hardiness Zones: Zone 2, Zone 3, Zone 4, Zone 5 , Zone 6
Soil Preference: Moist, well-drained soil
Acid Soils: Tolerant
Alkaline Soils: Moderately Tolerant
Salt Spray: Intolerant
Soil Salt: Intolerant
Drought Conditions: Intolerant
Poor Drainage: Intolerant
Season of Interest: Early winter, Mid winter, Late winter, Early spring, Mid spring, Late spring, Early summer, Mid summer, Late summer, Early fall, Mid fall, Late fall
Flower Color & Fragrance: Inconspicuous
Shape or Form: Pyramidal
Growth Rate: Slow
Transplants Well: Yes
Wildlife: Birds, Browsers, Small mammal