All About the Genus Picea
1) Picea orientalis Oriental Spruce
- This popular ornamental spruce can grow up to 150 feet and is native to the Caucasus Mountains and northern Asia Minor.
- This species is prized for its gracefully pendulous foliage and for the young cones which are deep purple.
- A grove of these trees can be found on the northeast side of the Pinetum.
2) Picea morrisonicola Taiwan Spruce
- Endemic to the mountains of Taiwan, this spruce has slender, delicate shoots.
- In its native range, this tree grows at high altitude from 6,600 feet to 8,200 feet above sea level.
- The specimen in the Pinetum near the Newton Street entrance was grown from a wild-collected seed and has been part of the collection since 1958.
3) Picea engelmannii Engelmann Spruce
- Native to western North America from British Columbia to New Mexico, this species is often grown for its blue-green needles.
- Wood from young trees is used to make musical instruments including guitars, violins, and harps.
- A group of these trees can be found in the Cascadia Forest at the south end of the Arboretum.
4) Picea breweriana Brewer Spruce
- The long pendulous branches of this spruce efficiently shed snow in its native range in the mountains of southwest Oregon and northwest California.
- There are about 35 species of Picea, and they are only found in the northern hemisphere.
- A small specimen is located in the Cascadia Entry Garden.
5) Picea abies ‘Pendula’ Norway Spruce
- This common European species is popular in cultivation with over 350 forms described. There are 15 forms in the Arboretum, many of them dwarf cultivars.
- Scientists in Sweden have found a P. abies that is 9,550 years old – one of the world’s oldest trees. This tree, named Old Tjikko, has regenerated new trunks through clonal layering of branches. While each trunk lives only a few hundred years, low branches root into the ground and produce new trunks.
- A large P. abies ’Pendula’ can be found at the south end of the Sorbus Collection.