|Mugo Pine - Pinus mugo|
Family Pinaceae: pines, Cedars, Spruce, and Firs
Common names: Mugo Pine, Swiss Mountain Pine, Mountain Pine. USDA hardiness zones: 2 through 7
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Mugo Pine - This specimen is 34 years old and perhaps 15 feet tall.
Mugo Pine is a shrub 4 to 10 feet tall which grows best in sun in moist loam. Needles of this two-needle pine are held on the tree for more than four years making this one of the more dense pines suitable for a screen planting. Most other pines are not suited for screens since they loose their inner needles and lower branches as they grow older. Since there seems to be great variability in height among individual trees, select nursery plants which have the form which you desire. When selecting a Mugo Pine to grow into a tree, choose one with a central leader; if looking for a more dwarf type Mugo Pine choose among the many compact selections.
Origin: Europe; Pyrenees, Alps, Erzgebirge, Carpathians, northern Apennines and Balkan Peninsula mountains. Uses: Bonsai; container or above-ground planter; recommended for buffer strips around parking lots or for median strip plantings in the highway; screen; Christmas tree; no proven urban tolerance.
DESCRIPTION: Height: 15 to 25 feet / Spread: 15 to 25 feet. Crown uniformity: symmetrical canopy with a regular (or smooth) outline, and individuals have more or less identical crown forms. Crown shape: round; pyramidal. / Crown density: dense. / Growth rate: slow. /
Cones are persistent, brown, dry and hard, oval, 1 to 3 inches long. They do not attract wildlife. Trunk/bark/branches: routinely grown with, or trainable to be grown with, multiple trunks; grow mostly upright and will not droop; not particularly showy; tree wants to grow with several trunks but can be trained to grow with a single trunk; no thorns. Pruning requirement: needs little pruning to develop a strong structure.Resistant to breakage and windthrow. Grows best in full sun; likes well-drained soils, tolerates clay, loam, sand and acid or alkaline soils. Aerosol salt tolerance is high, soil salt tolerance good. Surface roots are usually not a problem.
Mugo Pine is a favored host for Pine sawfly and Pine needle scale. Some adelgids will appear as white cottony growths on the bark. All types produce honeydew which may support sooty mold. European Pine shoot moth causes young shoots to fall over. Infested shoots may exude resin. The insects can be found in the shoots during May. Pesticides are only effective when caterpillars are moving from overwintering sites to new shoots. This occurs in mid to late April or when needle growth is about half developed.
1. USDA Forest Service Fact Sheet ST-467 Pinus mugo Edward F. Gilman and Dennis G. Watson
2. USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN)
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Family Pinaceae: Pines, Cedars, Spruce, and Firs