Abies amabilis
A tall, shade-tolerant evergreen conifer native to the Pacific Northwest, with two-ranked flat needles and silvery undersides, thriving in cool, moist, acidic soils under partial shade.
Common Names
Pacific Silver Fir, Lovely Fir, Red Fir, Cascades Fir, White Fir, Amabilis Fir, Silver Fir, Sapin Gracieux
Summary
Pacific silver fir is a large evergreen conifer native to the Pacific Northwest, from Alaska through British Columbia, Washington, Oregon to northern California. It typically grows 30–45 m tall with a narrow, pyramidal crown and a trunk up to about 1.2 m in diameter; leaves are flat, dark green above with two white stomatal bands below, 2–4 cm long, giving a silvery underside, and bark is light gray on younger trees, darkening with age. Cones are erect and purple when immature, maturing brown; it is very shade-tolerant, often forming dense, moist forests in cool, humid climates.
Cultivation favors deep, moist, acidic to neutral, well-drained soils in cool, humid climates with abundant rainfall; grows best in full sun to partial shade and is drought sensitive. Uses include timber for pulp and framing and ornamental plantings in parks; it is occasionally used as a Christmas tree. It is susceptible to pests such as balsam woolly adelgid and certain root diseases, so site selection, health monitoring, and proper drainage are important.
Lifecycle
Perennial
Height
100-230 feet
Spread
16 ft
Hardiness Zones
Zones 5a-8b
Sunlight Requirements
Ideally full sun; tolerates partial sun, partial shade, and full shade.
Soil Type
Moist, well-drained soil with pH about 5–6; tolerates all soil textures (sand, loam, and clay).
Soil Drainage
Moist but well-drained soils
Soil pH
5.0-6.5
Bloom Color
Red, Yellow, and Silvery-white
Bloom Time
Spring (mid-May to mid-June)
Foliage Color
Dark green with a silvery underside
Fall Foliage Color
No fall color — evergreen; needles stay green year-round.
Leaf Lifecycle
Evergreen needle
Growth Rate
Slow
Seasons of Interest
Spring, Summer, Fall
Propagation Methods
Seeds, Cuttings, Layering
Attracts Wildlife
Attracts birds, butterflies
Taxonomy
- Taxonomic Rank
- Species
- Author
- (Douglas ex Loudon) J.Forbes
- Publication
- Pinet. Woburn. 125. (1839)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Pinophyta
- Class
- Pinopsida
- Subclass
- Pinidae
- Order
- Pinales
- Family
- Pinaceae
- Genus
- Abies
Synonyms
Picea amabilis Abies grandis Abies grandis var. densifolia Pinus amabilis