|
Classic shrub roses encompass
a variety of older hybrids and their decendents. The family includes
hybrid rugosa, kordesiis, and hybrid musk types. Flowers can
range from simple single blooms to fully double blossoms. Many
will repeat bloom throughout the season.
Care
To encourage blooms, prune shrub roses lightly, cutting back
the previous years' growth only. Repeat bloomers should be pruned
in late winter or early spring. If the plants become leggy over
time, trim back some canes to the ground to encourage new growth.Roses
are hungry plants. Starting at spring pruning time, feed them
steadily by working a slow-release fertilizer formulated for
roses a few times a year as the package directs.
Slow-release fertilizers with built-in pesticides are available.
Or feed with a liquid fertilizer once a month. Stop feeding two
months before your region's first frost date in fall to prevent
tender growth being damaged by cold weather.Make sure your roses
get 1 to 2 inches of water each week during the growing season,
and a bit more during hot, dry periods. Water deeply, and avoid
getting the leaves wet.
Planting
Plant shrub roses in well-drained, slightly acid soil. Add organic
material to loosen compacted soils. Choose a spot that gets at
least six hours of sunlight a day. To ensure good airflow, which
helps prevent disease, space shrub roses 5 - 6 feet apart; twice
that distance in warm areas.Position the bud union -- the knobby
section that joins the roots to the main stems -- right at soil
level.
If you live in a region where temperatures drop below 20 degrees
F., plant the bud union one inch below the soil surface.Water
well. If planting bare-root roses, mound several inches of soil
over the base of the rose to prevent it from drying out until
it becomes established. After a couple of weeks, gently push
or hose off the soil.
Pests and Diseases
Black spot and powdery mildew are common in humid areas. Plenty
of sun and good air circulation reduces the problem. If needed,
an anti-fungal spray in early spring can help control the problem.
Aphids are also common;
spray hard with a hose to reduce populations. Japanese beetles
are common east of the Mississippi For minor infestations, remove
the beetles by hand or shake them off plant into a bucket of
soapy water. For major infestations, apply chemical controls
according to package directions.
|
