AUSTRIAN PINE(Pinus nigra)
Evergreen needles. 9-15 centimetres long. Crowded.
Two in a bundle; a pair. Shiny dark green. Sharply pointed; Stiff. Dense foliage. Cones:
5 - 7.5 centimetres long. 2.5 - 3 cm wide. Egg-shaped.
Shinyyellow-brown. Almost stalkless. Open and shed after maturity (two years). Cone-scales are numerous, raised, and end in a short point. Twigs:
Light brown or gray. Thick. Hairless. Bark:
Dark gray. Thick. Rough.
Ridged. Irregular scaly plates. Straight trunk. Resinous tree; tree sap. Height:
18 metres. Diameter:
0.6 metres. Growth Rate:
- Moderately fast.
Species Requirements Distribution Range:
Native of central and S. Europe, Asia Minor, and NW. Africa.
Planted across North America.Zone: 4 to 7 Habitat:
- Grows well anywhere except in very cold, very hot, or dry regions.
Full sun/partial shade. Tolerance to Salt:
High Tolerance. Tolerance to Shade:
Intolerant. Preferred Soil:
Can grow in sandy, loam, or clay soil types; tolerates a wide range of soil types. pH Range: 3.7 to 6.0
- Likes well-drained soils.
Care Common Diseases:
- Needle rusts.
- Dothistroma needlecast.
- Gall rust.
- Diplodia blight.
- Pine root weevil.
- European pine shoot moth.
- Black pineleaf scale.
Problems with disease.
Susceptible to diplodia tip blight which kills stem tips..
Difficult to transplant.
Susceptible to winter injury; snow and ice may cuase branches to break.
Cones create a minor litter problem.
Pine nematodes can plug the vascular system and can kill entire plant in one season.
**Should not be planted on campus in the future due to its sensitivity to diplodia tip blight fungus.
Good cover for birds and mammals.
Windbreaks; screens; borders.
Tolerant of air pollution, dust, and dry soil.
Heat and drought resistant.
- Excellent for use as a background for small trees with colorful flowers or ornamental fruit.
- As the tree ages, the branches spread wide & hang gracefully, and the bark colors become more attractive.
- When planting many Austrian pines together, make sure they have plenty of room to grow, know what species to plant beside it, consider its roots and the affect they might have in an urban setting, and set up a pruning and fertilizing schedule.
- Seldom needs pruning - remove multiple leaders, dead and broken branches.
- Don't prune into old wood having no leaves or needles.
- Prune during growing season to make more compact or dense (April, May, June).
- Remove cone and twig litter if tree suffers from Diplodia twig blight.
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