Picea pungens 'ISELI FASTIGIATE'

Picea pungens 'ISELI FASTIGIATE'
Colorado spruce

SIZE/TYPE	medium-sized shrub
USUAL HEIGHT	3-5m
USUAL WIDTH	1-1.5m
LEAVES	evergreen conifer
COLOUR OF LEAVES	+multicoloured:blue-green and silvery-blue
FLOWERS	insignificant or non-blooming
LOCATION	full sun
USDA zone (lowest)	3 (down to -40°C)
WINTER PROTECTION
FOR ZONE 5+6
FOR ZONE 7
BELONGS TO CATEGORIES	Conifers Hedging plants

Although Colorado spruce originates in the Rocky Mountains of Canada and the USA, it has been in wide cultivation in Europe and its colder regions. Iseli Fastigiate is another clone from the Iseli Nurseries in the USA. It was introduced in 1975 and bears steel-blue needles decorating strictly upright growing branches. The habit is very formal and neat without any pruning. The plant keeps its shape until maturity and benefits from strong branches that do not bend under a heavy load of fresh snow.

Spruce is widely soil adaptable provided the soil is well-drained. It likes neutral to slightly acidic soil and full sun. No fertilizing is necessary. It usually needs no pruning but trimming is possible and is best done in early spring. Fully hardy to about -40°C (USDA zone 3).

Last update 09-02-2013

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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.