Picea
pungens glauca
Colorado Blue Spruce
Regular pyramidal growth. Needles stiff, spiny and varying in color
from bluish to silvery green. It makes a beautiful specimen as a
background. Prefers cool soil.
Baker Blue Spruce - Deep blue form of Colorado Blue Spruce. Stays
smaller than the species. Only 25- 30'
tall.
Fat Albert Blue Spruce - Dense branching semi-dwarf variety of Colorado Blue
Spruce, which attains a height of 15' at maturity. Slow growing Full Sun
Pinus
nigra
Austrian Pine 
50'
Long, stiff, dark green needles. Fast growing, heavy appearance.
Tolerated adverse exposures and soil conditions. Excellent as specimen,
screen or background.
Pinus
ponderosa
Ponderosa Pine
50'
Similar to the Austrian Pine, Ponderosa Pine has long twisted needles and
does not become as wide spreading.
Pinus
strobus
White Pine 
50
- 60'
A beautiful open tree with bluish-green needles. White Pine tolerated
shade better than other pines and like so be near other trees.
Pinus
sylvestris
Scotch Pine 
50'
Fast growing. Medium length needles with bluish cast and somewhat
twisted appearance. Very picturesque when older. Orange-red bark.
Pseudotsuga
menziesii
Douglas Fir 
60'
Symmetrical. Heavy soft needles on branches right to the ground.
Likes full sun and relatively dry locations. Very rapid growth