Pinus nigra austriaca - Austrian Pine

(= P. austriaca; P. nigra nigra)

Variety overview

P. nigra 'Nana'
P. nigra 'Green Tower' (currently only available as a unique specimen)

Specifications:

Origin:

Central to Southern Europe

Habit:

Decorative large tree, 20-25 (40) m tall, 6-10 (12) m wide; broadly conical or ovoid in the first years with symmetrically arranged layers of twigs, branches to the ground for ca. 15 years, crown then widening, umbrella-shaped or asymmetrical, no branches in the lower region; strong-growing when young, 40-60 cm a year, later after 15 years only 15-25 cm.

Bark:

Thick bark in yellow and dark brown with blackish fissures.

Fruit:

Conical, 5-9 cm long, brown cones.

Leaves:

Needles in twos, 8-15 cm long, dark green, coarse, pointed and slightly prickly.

Roots:

Well anchored deep roots, adaptable.

Demands:

Full sunlight, completely intolerant of shade, resistant to heat, frost hardy; adaptable; resistant to urban environments, tolerates salty air, wind resistant.

Soil:

Dry to fresh; resistant to drought when established; sensitive to dampness; slightly acidic to very alkaline (more than pH 8.4); on all well drained, chalky substrates, even loam.

Hardiness:

Zone 5b

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