Abies concolor
Abies concolor
white fir
white fir
SIZE/TYPE | tall tree |
---|---|
USUAL HEIGHT | 15-30m |
USUAL WIDTH | 2-6m |
LEAVES | evergreen conifer |
COLOUR OF LEAVES | silvery-blue |
FLOWERS | insignificant or non-blooming |
LOCATION | full to partial sun |
SOIL TYPE | any (acidic to alkaline) |
SOIL MOISTURE REQUIREMENTS | evenly moist but well-drained |
USDA zone (lowest) | 3 (down to -40°C) |
WINTER PROTECTION | |
FOR ZONE 5+6 | |
FOR ZONE 7 | |
BELONGS TO CATEGORIES | Conifers |
White fir is a very popular conifer in Central European landscape. Its natural habitat extends from the southwestern United States to northern Mexico where, especially in warmer areas, it was reported as somewhat invasive when it forms monocultures. However, it is more often found in mixed forests with diverse species. It is demanded and cultivated for its striking color. Growers in nurseries pay special attention to selecting the best-coloured seedlings since it is often propagated by seeds and plants grown from seeds vary by their traits, especially colour. Numerous varieties have been named offering not only various needle colour but also growth rate, habit, or mature size.
The needles of the species of white fir can vary from dark green with only light grey frosting to silvery blue-green. This variation is given by propagation by seeds which results in plants that differ slightly one by one. Therefore, it's a good idea to examine closely the tree you are buying when it comes to the right colour because you will be looking at it for the rest of your life as white fir is long-lived (200-300 years), much longer than a human. The needles are 4-6 cm long, upright, flattened, soft and very pleasant to touch.
It grows about 20-30 cm per year into a nice and symmetrical, narrowly cone-like habit with tiered to slightly ascending branches. Although it is a tall conifer when mature, in normal-sized gardens its slow growth rate enables pruning which helps you maintain a desired size. For trees where regular trimming is not expected, it is necessary to choose a location where its mature size will not interfere with other plants close by.
White fir is tolerant of a wide range of soils, it will grow in almost any well-drained soil from slightly acidic to slightly alkaline, preferably moist but never waterlogged. In deep, fertile soil it will grow faster and have stronger and deep roots, whereas in locations with heavy clay, rock, or other unsuitable material lower in the ground it will have a shallow root system. Because of this, it is often described as a species prone to uprooting, but it is very theoretical. In fact, it is much more stable than for example common spruce. Once established it copes well with long periods of drought and heat. Plant it in full sun or partial shade. Hardy to approx. -40 °C. (USDA zone 3).
Last update 07-01-2010; 13-02-2024
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