White Fir, Concolor Fir
- native to the Rocky Mountains of the western United States; from Canada to California
- zone 3
Habit and Form
- evergreen tree
- 50' to 75' tall by 20' to 30' wide, but can reach over 100' tall
- pyramidal in shape, holding a dense, formal shape well, even with age
- medium to coarse texture
- slow to medium growth rate
- needles are 2" to 3" long
- needles arranged horizontally on the stem, curving up and out, much like a "rib cage"
- needles are glaucous on both-sides giving it a blue cast to the upper and underside
- needles have 2 white stomatal lines on underside
- buds are resinous
- no fall color (evergreen)
- no ornamental value
- brown cones, green when immature
- 4" to 5" long
- cones shatter when mature
- cones borne on the upper third of the tree
- smooth, except for occasional resin blisters
- bark has a whitish gray color
- new stems are yellow-green in color and are somewhat hairy
- easily transplanted
- tolerant of most climates and city conditions
- prefers a deep, well-drained soil with adequate moisture, but less fussy about soil moisture than other Abies sp.
- full sun
- most adaptable of all Abies sp. to cultivation
- specimen tree, has exceptional foliage
- adds nice color to typical green winter foliage
- less likely to fail than other true firs under a range of landscape situations
- formal form and blue color can be imposing in some landscape situations
- often damaged by deer
- needles are similar in color on top and bottom
- smooth bark with resin blisters
- longest needles of commonly seen firs
- resinous buds
- circular leaf scars
- by seed, stratification period required for good germination
'Candicans' - Notable for its intense silvery-blue needles, perhaps the bluest of all Abies.
'Compacta' - A handsome dwarf form with an irregular habit and blue needles.
'Dwarf Globe' - A dwarf form (to 3' tall) with needles that are borne densely and bluish-green in color.
'Glenmore' - A more compact variety than the species with grey-blue needles that are longer than usual.
'Gable's Weeping' - An unusual, slow-growing form that forms a mound of drooping branches.
'Violacea' - Beautiful form with intense silvery-blue needles. Often grafted on species understock.