Colorado Blue Spruce 
T he term ‘‘Blue Spruce” includes both 
the Colorado Blue Spruce, grown from 
seed, and the Koster Grafted Blue 
Spruce. Both of these trees are widely 
known and appreciated, and are doubtless 
more extensively planted than any other 
Evergreen. 
The Colorado Blue Spruce as it grows wild 
in the mountains of Colorado, varies in color 
from trees of green shades to those of the 
brightest blue color. By selecting seed from 
the bluest trees, nurserymen are able to re¬ 
produce specimens, a certain number of 
which are bright blue in color. The majority 
of such seedlings, however, turn out to be 
green. All of the specimens offered below 
are guaranteed to be bright blue in color and 
good symmetrical form. 
It should be pointed out, with reference 
to both this tree and the Koster Blue Spruce, 
that the color is brightest in late spring, 
when the new growth develops, and grad¬ 
ually changes during the season, until in win¬ 
ter only a slight bluish tint remains. 
EACH 10 
21^-3 feet XXX.B&B $6.00 $55.00 
3-31^ feet XXX.B&B 7.00 65.00 
Koster Blue Spruce 
T his tree was originated in Holland 
by a nurseryman named Koster. The 
original tree was an extremely bright 
and attractive specimen of the Colorado 
Blue Spruce. These trees are all grown by 
grafting, which insures each specimen will 
be a bright blue one, of uniform blue color. 
The shape of these trees, however, when 
small is not so symmetrical as the Colorado 
Blue Spruce. The color is somewhat 
brighter blue, however. 
The color of any Blue Spruce is the same 
as the “bloom” or sheen on a grape or plum. 
It is a powdery substance that may be wiped 
off the needles. In fact, most of it does 
come off during the winter time after con¬ 
tinuous rain and snow. This accounts for 
the lack of bright blue color during the 
winter and early spring months. 
All Blue Spruce should be planted as 
specimen trees, in the open ground away 
from buildings, where they will have full 
room to develop into specimens of rich, 
glistening, beautiful color and form. 
EACH 10 
10-12 inch XX .B&B $1.60 $14.00 
12-15 inch XX .B&B 1.90 17.00 
11 / 2-2 feet XXX.B&B 3.50 30.00 
2 - 21/2 feet XXX.B&B 5.00 45.00 
Five of the same variety and size at the 10 rate. Each x indicates one transplanting. B&B signifies balled and 
hurlapped. 
• New • • • 
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Price $3.50 each (Postage Paid.) 
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A complete check list of all Evergreens known to be in cultivation within the 
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copies of Hill’s Book of Evergreens @ $3.50 each. 
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