Botanical Name: Pinus quadrifolia
Common Name: Four-needle Pinyon, Parry Pinyon Type of Plant: conifer: tree Character evergreen Habit of Growth: Overall Shape single-trunked, upright, very erect and pyramidal in youth, becoming more irregular with an open flat top with age Height 15'-30' (40') Spread 1/2 - 2/3 Growth Rate slow Environment: Exposure outdoors requires full sun and heat; avoid shade Soil prefers well-draining porous soils Hardiness hardy (zones 12-21, 23): thrives in hot inland locations Morphology: Leaves needles, in clusters of (mostly) four per fascicle; whorled along the stem; stiff, pale blue-green, 1"-2" long Flowers male and female cones; small, inconspicuous; male cones soon disintegrating as the pollen matures Fruit female cone: round-oval, tan, 2"-3" long Propagation: seed Usage: an outstanding small accent tree, prized at any age for its dense rugged form and blue-green foliage; good for slopes; can be used as large container plant; thought to be the most picturesque of all pinyon species Landscape Care: Watering an occasional deep soak; the plant becomes very drought-tolerant after established Fertilizing none Pruning none required; selectively heading back promotes fuller shape; thinning out promotes rugged shape Pests/Diseases relatively free; appears to be smog resistant Special Conditions/Other best adapted of the pinyons to L.A. Basin habitats Origin: San Jacinto/Laguna Mountains south to Northern Baja Family: Pinaceae Notes: |
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