Western White Pine
Cone of western white pine
Scientific Name: Pinus monticola
Height: 90 to 110 feet (27 to 33 meters)
Spread: 20 to 30 feet (6 to 9 meters) in open
Leaves: Bluish-green needles in bundles of five. 1.5 to 5 inches (3.8 to 12.7 cm) long
Fruit: Slender, yellow-brown cone, 4 to 10 inches (10 to 25 cm) long
General Care Tips
The Western White Pine favors deep porous soils with medium acidity but will tolerate soils of poorer quality. Seedlings can benefit from partial shade up to five years and full sun thereafter. Growth can be very slow with seedlings started in nutrient-rich soil doing best. Western white pines are generally drought intolerant.
Things to Watch For
Fusarium, a damping off disease, and neopeckia coulteri, a snow mould are dangers for young seedlings. A root rot, rhizina undulata, is also a problem in seedlings under 5 years. Birds and insects can also kill young seedlings.