This is a
genus of around 35 species of conifers. With the
exception of the dwarf cultivars, spruces
are rigidly upright, pyramidal in form with
stiff, prickly needles that emerge
individually from the stem. They bear
pendant cones (the hang down from the
branch).
Although they
are often seen in home landscapes, the
spruces are often a disappointment.
Individual specimens may work well but they
tend to be very large trees at maturity
requiring a lot of space. The Colorado blue
spruce is probably most often used but it
has serious problems as they age. The Norway
spruce is commonly used in
Europe.