These articles are written to apply to the northeastern
corner of Illinois. Problems and timing may not apply outside of this
area. |
Overview of Evergreen Shrubs
December 27, 2001
Last week I reviewed some popular evergreen trees for landscape use.
Today's topic is a look at popular evergreen shrubs for landscape use.
As is the case with evergreen trees, all evergreen shrubs are not the
same. Popular species include yews, junipers, and arborvitae. Yews are
adaptable shrubs with soft needles and will tolerate shade. Perhaps the
biggest problem facing yews is planting them in a site that is too wet.
Taxus cuspidate, or Japanese yew, tolerates shade and difficult sites.
Cultivars vary in size and growth form. Another popular yew is Taxus
x media 'Hicksi' or anglojapanese yew, which makes a good hedge
or screen.
Junipers are also popular evergreen shrubs. One way to tell a juniper
is to stick your hand into the canopy. If you feel sharp spines, it is
probably a juniper. Junipers are available in a variety of growth habits
ranging from tall shrubs up to 15 feet to very low creeping junipers less
than a foot off the ground. Coloration can also vary with cultivars. Junipers
do best in sunny locations.
The third of the "big three"evergreen shrubs is arborvitae.
Foliage is described as somewhat scale-like and has a somewhat flattened
growth pattern. Arborvitae typically is thought of as having a tall, pyramidal
growth habit that makes good screens. There are also smaller rounded or
globe forms for various uses in the landscape. Color can also vary with
cultivars.
Finally, there are a variety of dwarf pines, firs, and spruces that can
be considered evergreen shrubs. Perhaps the most popular is the mugo pine,
which is widely used in landscapes. Dwarf Alberta spruce is another in
this group that is an interesting plant. Winter is a good time to observe evergreens of all types to help plan
future plantings in your home landscape next season and beyond. |