Pinus nigra ssp. nigra (austriaca)

Pinus nigra ssp. nigra (austriaca)
Pinus nigra ssp. nigra (austriaca) 
Austrian pine
SIZE/TYPE tall tree
USUAL HEIGHT 10-30m
USUAL WIDTH 6-8m
LEAVES evergreen conifer
COLOUR OF LEAVES green
FLOWERS insignificant or non-blooming
LOCATION full to partial sun
USDA zone (lowest) 3   (down to -40°C)
WINTER PROTECTION  
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
BELONGS TO CATEGORIES Conifers
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Austrian (black) pine was first classified by Austrian botanist Johann Arnold in 1785. It is a hardy tree which escaped Austria in early 20th century, and can now be found all around Europe, down to Turkey, and in North Africa. Hard to say if Mother Nature needed a stronger substitute for more tender species in the ever-changing climate, or whether this one is simply invasive. In any case its more than a century old journey has proved its toughness and durability.

Austrian pine is a variable species and is therefore divided into subspecies where each one reflects its location and appearance. Pinus nigra ssp. nigra (or ssp. austriaca) is the one found all around Europe except the south (ssp. salzmannii is at home there). It produces 10-15 cm long, dark green, slightly glossy, erect, stiff needles in bundles of two. It grows medium fast to fast with 20-40 cm per year, forming a symmetrical, well-branched tree. It keeps its lower branches and grows slower if fully insolated top to toe, otherwise (especially in forests) it quickly looses lower branches and grows faster towards the sun. Austrian pine is a good windbreak as well as a beautiful specimen tree in large gardens.

Pines need full sun and well-drained soil that will not be too alkaline. No fertilizing required. Pruning is possible in late winter or late summer, never cut into branches which lack needles. You can shape the tree by removing or trimming "candles" - young new shoots before they develop proper-size needles. Austrian pine is commonly hardy to about -40°C (USDA zone 3) and this variety is supposed to withstand at least -34°C (USDA zone 4). It is also hardy for growing in a container where it will be prone to lose older needles sooner.

Last update 27-11-2010; 06-03-2020
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Pinus nigra ssp. nigra (austriaca) height of stem 120 cm, girth 30-32 cm
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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.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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