White Fir 'Candicans' This cultivar of Abies concolor is known for its silvery-blue, dense needles and pyramidal shape.The cultivar stands out due to its striking blue tint, making it ideal for formal landscapes or as a specimen tree in natural settings. This cultivar originated as a seedling selected in 1929 by the Arboretum National des Barres, Nogent-sur-Vernisson, France.