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A very ornamental plant. The Jeffrey pine may live 400 to 500 years and can attain immense size. It typically grows to 1,20 - 1,80 m (4-6') in diameter, and 50-60 m (170-200') in height. To date, the largest Jeffrey pine recorded in the western Sierra Nevada had a diameter of 2,20 m (7,5'), and a height of 51 m (175').
The Jeffrey pine needles are in bundles of three, and are 18-27 cm (7-11") long. Its’ cones are 15-25 cm (6-10") long, and oval lacking the spines, which make ponderosa pine cones prickly.
The Jeffrey pine bark is deeply furrowed, and reddish-brown compared to orange of the ponderosa pine. It also has a strong vanilla or pineapple odor.
effrey pine is found primarily in California extending north through the Klamath Mountains into southwestern Oregon, across the Sierra Nevada into western Nevada, and south to the Transverse and Peninsular Ranges and into northern Baja California. In the northeast, central, and southern portions of its range, climate and elevation determine its distribution, rather than soil type.
The Jeffrey pine can occupy many sites from the edges of moist, high mountain meadows to arid slopes bordering deserts, and it will grow over a wide range of elevations. The Jeffrey pine also grows in a diverse range of climatic conditions. It grows well on harsh and infertile sites. It is tolerant of drought, adapts to cold weather because it requires a shorter growing season than the ponderosa pine.
Information source: www.eol.org.
Genus - Pinus
Species - Jeffreyi
Common name - Jeffrey Pine
Pre-Treatment - Required
Hardiness zones - 7 - 9
Height - 170-200' / 50 - 60 m
Plant type - Tree
Vegetation type - Evergreen
Exposure - Full Sun, Partial Shade
Growth rate - Fast
Soil PH - Acidic, Neutral
Soil type - Loam, sand
Water requirements - Average Water
Landscape uses - Attractive foliage, North American native, Inconspicuous flowers or blooms.. Bark has vanilla scent.
Leaf / Flower color - Green / --
| Useful Info | |
| Germination | 1. Place the seeds in a container with tepid water and soak them for 24 hours. Change the water and wait another 24 hours. 2. Put the seeds in a small plastic bag and cover with damp sand. Place the bag holding the seeds in the refrigerator for one to two months to stratify the seeds, which is preserving seeds in layers of moisture-laden peat, soil or sand. Check the sand and water as needed to maintain moisture. Don't allow the seeds to get soaked. 3. Fill small pots with compost. Place one or two pine seeds on top of the compost in each pot, then cover the seeds with a thin layer of sand. 4. Water the sand and compost to add moisture, then place the pots in a warm, sunny location. As the seedlings emerge and grow, the soil needs to remain moist, not wet. 5. Repot the pine trees into medium-sized pots in the fall. Grow them in the pots for the following season until they are large and strong enough for transplanting into the landscape. |
