Pinus x schwerinii 'WIETHORST'

Pinus x schwerinii 'WIETHORST'
dwarf Schwerin's pine

SIZE/TYPE	medium-sized shrub
USUAL HEIGHT	1-2.5m
USUAL WIDTH	1-1.5m
LEAVES	evergreen conifer
COLOUR OF LEAVES	+multicoloured:silvery-blue and blue-green
FLOWERS	insignificant or non-blooming
LOCATION	full sun
USDA zone (lowest)	4 (down to -34°C)
WINTER PROTECTION
FOR ZONE 5+6
FOR ZONE 7
BELONGS TO CATEGORIES	Conifers

Schwerin’s pine is an interspecies cross between Himalayan pine and Weymouth pine. It was found by the earl Schwerin in his park in Wilmersdorf (near Berlin) in 1905 and has become a collectors’ item ever since.

Wiethorst is a witch’s broom of Schwerin’s pine, found and named by Johann Wieting in Gieelhorst, Germany. It is dwarf, slow growing version of this pine with symmetrical, pyramidal shape and dense habit. It has beautiful, 10-12 cm long, silvery blue-green, and always pendent needles. In summer numerous light green, slim cones are produced even on young plants. Pruning is not required to achieve a compact shape.

All pines love sunny sites and dislike wet ground. Though, this pine benefits from constant moisture and makes extra beautiful plants when it does not suffer from drought. Its root system can get used to sites near ponds and water streams and will benefit from extra humidity brought by presence of water features. It can live on either fertile of poor soil. Hardy to about -34°C (USDA zone 4).

Last update 11-02-2013

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GLOSSARY

STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
SHRUB - a woody plant with branches growing bushy from the ground level.
HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.