Pinus cembra 'COMPACTA GLAUCA' arolla pine
size/type
taller shrub,taller shrub
usual height
3-5m
usual width
1-1,5m
leaves
evergreen conifer
colour of leaves
location
full sun
USDA zone (lowest)
4 (down to -34°C)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
Compacta Glauca is an arolla pine variety of reduced size. It was selected by C.Frets & Son nursery in Boskoop, the Netherlands, around 1930, in a field of older variety called Glauca which had been known since 1860's. It exhibits much denser and congested growth, and produces about 10 cm long needles. They are medium green with prominent grey blue overlay which makes it look almost silver blue. Young shoots are light green and before the needles separate from the twig (so-called candle phase) you can trim or remove them completely if you wish to keep the plant even smaller, or if you want to shape it. It naturally forms narrowly egg-shaped, almost columnar, extremely dense shrubs or small trees about 4-5 m tall and not even 2m wide in maturity. Cones are produced on mature plants and hide edible seeds, however, it takes 3 years for them to ripen and fall down. Arolla pine contains a very fragrant essence, not only in the wood but also in the needles which release their perfume already when gently squeezed.
Arolla pine is one of the hardiest pines tolerating hard frost, windy areas and hot sun. One thing it hates though is wet ground. Grow it in full sun, in poor to semi-fertile, well-drained soil. No fertilizing necessary. Fully hardy to -34°C (USDA zone 4).
Last update 09-11-2018
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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.
