Pinus nigra Green Tower - Black Pine

The Pinus nigra 'Green Tower' is a medium-sized slender conifer that has an unusual silhouette for a black pine, as it forms a column with a very compact and well-regulated habit. Its dense foliage is a deep dark green, composed of large flexible and closely packed needles. Due to its relatively modest growth and slow growth rate, it is well suited for a small garden or a large rock garden. This variety is hardy, not demanding of soil type, and drought-resistant, while its naturally compact habit does not require pruning. It thrives in sunny exposure, in ordinary soil, even poor, clay or chalk.

The Pinus nigra, also known as Austrian Pine or Black Pine, is an evergreen conifer of the pinaceae family distributed in central and southern Europe, from Spain to Crimea, in Asia Minor, Cyprus, and more sporadically in the Atlas Mountains. In nature, it exceeds 35m (114.83 feet) in height, adopting an open conical habit and a dense crown. It is a very hardy species, well adapted to warm temperate climates and chalk or clay soils.

The 'Green Tower' variety distinguishes itself from the wild species with its exceptionally compact, regular columnar habit, and its ability to adapt to the most spartan conditions. Its growth is slow, reaching 4 to 5m (13.12 to 16.4 feet) in height and 1 to 2m (3.28 feet - 6.56 feet) in width at 30 years old. Its tightly packed, whorled and ascending branches are covered with fine needles, 10 to 15cm (3.9 - 5.9in) long, grouped in pairs and arranged in brushes, giving the vegetation a slightly feathery aspect. The tips of the vertical branches are punctuated by very visible white buds. On its trunk, the bark is brown-grey, covered with wide flat scales surrounded by deep fissures that widen over the years.

The 'Green Tower' Black Pine will look good in a small or medium-sized garden, alone, in a large rock garden, as a hedge or on the edge of woodland. It can also be placed against trees, or its dark and elegant foliage can be used as a backdrop to enhance blooms or the lighter foliage of other dwarf conifers or flowering shrubs. It goes well with large stones, geometric lines of pools or buildings, and brickwork. It can be combined with complementary grasses or dwarf conifers with a prostrate habit (Juniperus horizontalis Blue Chip), globose habit (Picea abies Little Gem), or columnar habit (Juniperus communis 'Sentinel'). The architectural qualities of conifers naturally fit in the design of a contemporary garden, which prefers the aesthetics of forms, silhouettes, and textures over flowers. These plants provide lasting structure to a bed, mark pathways and border terraces, easily replacing the strong presence of trimmed boxwood or holly. The key is to play with volumes and colours.