Interesting Facts
Though often confused with spruce trees, firs are recognizable by their tall, symmetrical shape, large cones (or spiky stalks after ripening) and soft green or gray/blue needles. Most are North American in origin, and grow best in mountainous climates. Firs attract birds, and some varieties are suitable for creating bonsais. 
A. concolor are white firs that are native to mountains of southern Oregon, California, southern Rocky Mountains, and Baja California. They are a popular Christmas tree and one of the most commonly grown native firs in Western gardens. They need no irrigation in their native areas. They are large and symmetrical in size and shape. They bear bluish green 1-2 inch long needles.
| Plant Types: | Perennial, Tree |
| Light: | Partial Shade to Full Sun |
| Height: | 80 feet to 130 feet |
| Width: | 15 feet to 22 feet |
| Zones: | 3a to 7a |
| Leaf Color: | Blue |
| Special Features: | Attractive foliage, Attracts birds, Fragrant foliage, North American native |
| Shape: | Pyramidal |
| Fertilizer: | Miracle-Gro® Shake 'n Feed® Continuous Release All Purpose Plant Food, Miracle-Gro® Water Soluble All Purpose Plant Food |
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Plant Care
Planting:
Allow ample room when planting Firs as some species can get 20' wide at the base.
Allow ample room when planting Firs as some species can get 20' wide at the base.
Plant Growth:
Most Firs grow slowly in hot and dry climates at low elevations. Height ranges from dwarfed varieties (avg. 2'-3', 'Abies balsamea') to gigantic (upwards of 200', 'Abies nobilis').
Most Firs grow slowly in hot and dry climates at low elevations. Height ranges from dwarfed varieties (avg. 2'-3', 'Abies balsamea') to gigantic (upwards of 200', 'Abies nobilis').
Blooming:
Fir trees are planted for screens and windbreaks. White fir is often planted as an ornamental in large parks.
Fir trees are planted for screens and windbreaks. White fir is often planted as an ornamental in large parks.
Soil and Irrigation:
Most Firs need moderate to regular water.
Most Firs need moderate to regular water.
Pruning:
Pruning is usually unnecessary.
Pruning is usually unnecessary.
Pests:
Aphids can be a problem for new growth on Shoots.
Aphids can be a problem for new growth on Shoots.