56 HARRISONS’ NURSERIES, BERLIN, MD., U.S.A. 
MS 
ae 5s DE 
Group planting of Koster Blue Spruce. 
Spruce 
For ornamental plantings and windbreaks, the green spruces 
are almost indispensable. They are not surpassed by any ever- 
green in the winter landscape, and in summer make a most 
charming foil for Koster’s blue and Colorado blue. In fact all 
of the varieties harmonize with the deep coloring of the pines 
and hemlocks. The spruces are upright growing trees, tapering 
to a Pointed top: - ). Without 
Picea pungens Kosterii). ithou 
Koster s Blue question the handsomest of the blue- 
foliaged lawn trees. The foliage, borne very densely on the 
branches, is an intense silver-blue. ‘The tree is a slow 
grower and has regular, slim branches. All of our trees are 
grafted from fine-colored specimens and of the rich blue 
shade that makes the Koster spruce so handsdme. Scions 
are cut from the bluest and most handsome specimens that 
can be found and are grafted on sturdy seedling roots; this 
method insures every specimen to be of the true blue color. 
Seedling blue trees often revert to the green type, but the 
grafted trees de not disappoint. Each 10 
18 to 24 DM pelo leloiey sieves eielesevereievele clelofererelelelelerereicvoleteicieieteeie SR UO $30 00 
@ to 8 feet SDCEIMEN'S careless Stersvere ots crstarote orev oireroloreine 14 00 e@eeese 
Sto) 10 feet Specimens amen nies ceneeinccoeelecr nel Gn00 Soagerees 
Colorado Blue (2. pungens glauca). This variety is hardy 
and slow-growing, taking a shape that is 
symmetrical, narrow-pointed, and gracefully tapering toward 
the top. The foliage is blue and sage-green, and the trees 
seem at their best when planted in front of dark-colored 
evergreens. Each 10 
41 TOT PLO OLA Se re Sateie cicero eo bea elo Stet a alateiencote See $ 6 00 $55 00 
Dito Oefeetaw sce ceee feriesolie suisyeut sp olasenele iat sei oles Sie renaaae 8 00 70 00 
6 to 7 feet Specimens........ SUSUR: Lay caste petals poe 10 00 Sescc 
THOUS sFeCtNSpPeChmMensSn is vasna ood. cae e rae 12 00 BaAcoc 
8 ito d0sfeet. Specimens. 35 ste -s-tss. sot eee . 14 00 siociele 
