Pinus nigra ssp. nigra f. ROBUSTA

Pinus nigra ssp. nigra
Pinus nigra ssp. nigra  f. ROBUSTA
Austrian pine
SIZE/TYPE tall tree
USUAL HEIGHT 10-15m
USUAL WIDTH 5-6m
LEAVES evergreen conifer
COLOUR OF LEAVES green
LOCATION full 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
náhled foto
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. no wonder that new varieties are being bred and selected. They generally offer slower growth, smaller size or different habit suitable for common-sized gardens.

Robusta is a black pine selection. It makes shorter, 6-8 cm long, dark green, slightly glossy, erect, stiff needles in bundles of two. It grows medium fast (20-30 cm per year) and very well-branched even as a young plant. It forms a symmetrical, bushy tree keeping its lower branches and growing slower if fully insolated top to toe, otherwise (especially in forests) it quickly looses lower branches and grows faster towards the sun. A beautiful specimen tree for mid-sized and 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 06-03-2020
SIZES and PRICES
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view item form pot size quality price (incl. VAT) where in stock sending options quantity
Pinus nigra ssp. nigra height 150-175 cm, width 80-100 cm
De Luxe
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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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