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Aboretum

White Fir (Abies concolor)

"Soft blue-green needles and a graceful, symmetrical form make the White Fir a symbol of quiet strength and year-round beauty."

Take a Moment: Stand beneath the branches and notice the soft texture of the needles and the gentle fragrance they release. Look upward to find the upright cones perched high in the canopy, a signature found only on true firs. White Fir reminds us that even the quietest trees can leave the most lasting impression.

Why We Love This Tree

White Fir is one of the arboretum's most calming trees. Its silvery blue-green foliage remains beautiful throughout the year, offering cool shade in summer, rich color in winter, and shelter for birds and other wildlife in every season.

Its quiet elegance reminds us that strength and beauty often endure without demanding attention.

 

 

white fir in summer

White Fir in Summer

 
 

 

Meet the Tree

Native to the mountains of the western United States, White Fir is prized for its broad pyramidal form and remarkably soft needles. Unlike many evergreens, its needles are gentle to the touch and release a pleasant citrus scent when crushed.

Each year, upright cones develop high in the canopy before gradually breaking apart to release their seeds, a defining characteristic of true firs.

Today, White Fir is widely planted in parks, campuses, and arboretums for its beauty, adaptability, and long lifespan.

Ecological Benefits

White Fir provides year-round shelter for birds and small mammals while helping stabilize soil and improve air quality. Its dense evergreen canopy offers valuable winter cover, and its seeds provide food for species such as chickadees, nuthatches, crossbills, and squirrels.

Did You Know?


Unlike spruce cones, which fall to the ground intact, White Fir cones remain upright on the branches and slowly disintegrate, releasing their seeds while leaving only the central spike behind. This is one of the easiest ways to identify a true fir.

Quick Facts

 Native: Western United States & Northern Mexico

 Type: Evergreen Conifer

 Size: 30 to 70 ft tall × 15 to 30 ft wide

 Sun: Full Sun to Partial Shade

 Water: Moderate

 Growth: Slow

 Cones: Spring (cones mature in late summer to fall)

 Fall Color: Evergreen

Botanical Profile

Family: Pinaceae 

Common Names: White Fir, Concolor Fir

Genus Meaning: Abies is the classical Latin name for fir trees.

Species Meaning: concolor means "of one color," referring to the tree's needles, which are the same silvery blue-green on both their upper and lower surfaces.

How to Recognize It

Look for these distinctive characteristics:

  • Soft, flattened blue-green needles with a silvery appearance
  • Needles curved upward, often forming a "C" shape around the twig
  • Tall, symmetrical pyramidal form
  • Upright cylindrical cones that sit on top of the branches
  • Smooth gray bark on young trees that becomes furrowed with age
  • Pleasant citrus fragrance when needles are gently crushed

Growing Conditions

 Light: Full sun to partial shade

 Soil: Moist, well-drained soil

 Moisture: Moderate; appreciates consistent moisture while becoming moderately drought tolerant once established

 Hardiness: USDA Zones 4 to 7

 Tolerance: Adaptable to heat, drought, and urban conditions better than many other fir species