은청가문비나무 '올덴버그'-[정명]Picea pungens 'Oldenburg'

The blue spruce (Picea pungens), also commonly known as green spruce, Colorado spruce, or Colorado blue spruce, is a species of spruce tree native to North America in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. It is noted for its blue-green colored needles, and has therefore been used as an ornamental tree in many places far beyond its native range.

Description

In the wild, Picea pungens grows to about 23 m (75 ft), but when planted in parks and gardens it seldom exceeds 15 m (49 ft) tall by 5 m (16 ft) wide. The tree can grow larger if the tip is cut when it is at least 3 years old. It is a columnar or conical evergreen conifer with densely growing horizontal branches. It has scaly grey bark on the trunk with yellowish-brown branches.

Waxy gray-green leaves, up to 3 cm (1 in) long, are arranged radially on the shoots which curve upwards. The pale brown cones are up to 10 cm (4 in) long.[5][6][7][8] Male cones are found on the entire tree, whereas the female cones are found at the top of the tree. This helps to facilitate cross-pollination.

The specific epithet pungens means "sharply pointed", referring to the leaves.

Ecology

Blue Spruce occurs at high elevation (above 6000 ft/1830m) in the Rocky Mountains of the west-central United States. It grows in mesic montane conifer forests, often associating with Douglas-fir, ponderosa pine, or white fir. It has a riparian affinity.

Blue spruce - Wikipedia

국표에는 12종이 있다.

재배식물	정명	Picea pungens 'Glauca Pendula'	은청가문비나무 '글라우카 펜둘라'	2011/12/08
재배식물	정명	Picea pungens 'Glauca Prostrata'	은청가문비나무 '글라우카 프로스트라타'	2011/12/08
재배식물	정명	Picea pungens 'Globosa'	은청가문비나무 '글로보사'	2011/12/08
재배식물	정명	Picea pungens 'Moerheimii'	은청가문비나무 '모이르헤이미'	2011/12/08
재배식물	정명	Picea pungens 'Montgomery'	은청가문비나무 '몽고메리'	2011/12/08
재배식물	정명	Picea pungens 'Erich Frahm'	은청가문비나무 '에리히 프람'	2023/05/24
재배식물	정명	Picea pungens 'Oldenburg'	은청가문비나무 '올덴버그'	2023/05/24
재배식물	정명	Picea pungens 'Lseli Fastigiate'	은청가문비나무 '이셀리 패스티지에이트'	2011/12/08
재배식물	정명	Picea pungens 'Koster'	은청가문비나무 '코스터'	2011/12/08
재배식물	정명	Picea pungens 'Fat Albert'	은청가문비나무 '패트 앨버트'	2011/12/08

재배식물	정명	Picea pungens 'Hoopsii'	은청가문비나무 '호오프시'	2011/12/08
재배식물	정명	Picea pungens Glauca Group	은청가문비나무 글라우카 그룹	2011/12/08

 

Additive

Selection by J. D. ZU JEDDELOH, around 1970.

WHZ

WHZ 4

Distribution

In the Rocky Mountains of North America in altitudes of 2000 to 3300 m, on moist, sometimes wet gravel and loam soils.

Habit

Medium-sized tree with a symmetrical and conical crown. The leader is distinctively straight in young plants. Vigorous growth.

Size

Height 12m-15m (20m), Spread 5m-7m-8m

Bark

Grey-brown to black-grey, deeply furrowed, scaly.

Needles

Evergreen, very strong, turned distinctively upwards, steel blue.

Cones

Cones are elongate cylindrical, 6 to 10 cm long, light brown.

Site

Sun.

Soil

Undemanding and adaptable, on all (dry) moderately moist soils, acid to alkaline.

Characteristics

Very frost tolerant, not susceptible to late frost damage, tolerates more ­dryness than other spruce, withstands a certain amount of atmospheric ­pollution, tolerates warmth, dry atmospheric conditions and urban sites; prone to infestations of aphids.

Utilisations

Solitary.

Further

Further characteristics as for P. pungens.

Picea pungens 'Oldenburg' von Bruns Pflanzen