Pinus nigra 'Arnold Sentinel'

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Exposure: Sun
Hardiness: Zone 4

Common nameBlack Pine 'Arnold Sentinel'

FamilyPinaceae

TypeTREE

Botanical namePinus nigra 'Arnold Sentinel'

Pinus nigra 'Arnold Sentinel' is a columnar selection of Austrian black pine, valued for its narrow, dense, and upright silhouette, ideal for confined spaces, tall hedges, or structural aligned plantings. Its stiff, dark green foliage consists of long needles grouped in pairs, forming a dense, opaque texture year-round. Its naturally narrow habit, combined with high tolerance to harsh conditions (drought, pollution, poor soils), makes it an exceptional choice for urban or exposed plantings. Very hardy, it prefers a sunny exposure and well-drained soil, requiring no pruning to maintain its shape. 'Arnold Sentinel' combines verticality, dark foliage, and robustness, perfect for creating persistent and resilient green columns.

Soil and care

The right care,at the right time.

Minimum temperature

-40°C

Watering

Moderate, drought-tolerant once established

Soil type

Well-drained, poor to medium

Fertilization

Spring, mature compost or mild fertilizer if the soil is poor

Bloom and dimensions

Its place,in your garden.

Mature height

6–8 m (20–26 ft)

Width / spread

1.5–2 m (5–6.5 ft)

Flower color

Pale yellow (male), reddish (female)

Foliage color

Dark green

Foliage type

Evergreen (conifer)

Growth rate

Moderate

Bloom period

Spring

Fruiting

Pale brown, oval, inconspicuous cones

Wildlife and pets

Life,around your plants.

Supporting wildlife

Yes