NORFOK ISLAND PINE
The Norfolk Island Pine is an extraordinary evergreen tree that captivates with its distinct single upright trunk, tiered branches, and elegant pyramidal or columnar shape. This remarkable tree can grow rapidly to impressive heights of around 80 feet. However, in the eastern United States, its growth is often hindered by lightning strikes. In their youth, these trees display bright green, lanceolate leaves under 2 inches long that initially resemble spruce or fir needles. As they mature, the leaves transform into a more contorted form on twisted branches and develop a scale-like texture. Fascinatingly, both leaf types coexist on the tree at once. The trunk typically presents a curved silhouette with a swollen base and dark coloration. While large spiny cones weighing between 10 to 15 pounds are typical of this species in nature, they are rarely observed in cultivated settings.
Height: 60 to 80 feet
Spread: 12 to 20 feet
Crown uniformity: symmetrical
Crown shape: pyramidal, columnar
Crown density: open
Growth rate: fast
Texture: fine
Light Requirement: full sun
Soil Tolerances: clay; sand; loam; alkaline; acidic; well-drained
Drought Tolerance: high
Aerosol Salt Tolerance: can form large surface roots
Winter Interest: no
Outstanding Tree: no
Ozone Sensitivity: unknown
Verticillium Wilt Susceptibility: unknown
Pest Resistance: resistant to pests/diseases
While these trees offer some shade, they are generally unsuitable for patios or terraces due to their large size and the common presence of extensive surface roots. Columnar-shaped trees, with their narrow crowns, typically provide limited shade. It’s important to remember that these trees can grow quite tall; although they may initially have an attractive pyramidal form similar to fir or spruce trees when small, they often outgrow most residential spaces quickly. However, they can thrive as houseplants if not overwatered. They perform best in full sun and adapt well to various soil types while being moderately salt-tolerant. Young plants require adequate watering, particularly during drought conditions. Additionally, it’s crucial to prune out multiple trunks or leaders early on so that the tree develops with a single central leader for optimal growth.