ALABAMA A&M and AUBURN UNIVERSITIES |
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AUBURN, JULY 2---Impatiens is one of the top bedding plants used
by Alabama
gardeners. They are great for filling shady parts of the yard with
color.
Shady areas can be a challenge to plant, says Dr. Dave Williams, an
Extension
horticulturist with the Alabama Cooperative Extension System. There
are so many more
choices of plants for use in sunny areas.
Impatiens is a good selection for shady spots for a number of reasons
-- the plants thrive in
both beds and containers, they come in many bloom colors and there
are types with
variegated foliage. With proper care, impatiens will fill your flowerbeds
with color until
frost.
To ensure impatiens flourish, you need to do several things. First,
plant impatiens in the
right soil. The plants prefer well-drained soils with a pH of 6.0 or
6.5. Before planting, test
the soil. If the test indicates a low pH, amend the soil with lime
to raise the level.
After preparing the soil, you are ready to plant. Choose healthy transplants,
free of disease
and pests, from a local nursery or garden center. The more common impatiens
-- the
balsam type -- actually prefers shade, says Williams. The New Guinea
impatiens with a
variegated foliage, will tolerate morning sun. Take this into consideration
when you select
plants.
Once plants are in their containers or beds, provide them with ample
water, says Williams.
Impatiens need plenty of water during the hottest parts of the summer.
Check plants
regularly. You may need to water daily during extremely hot weather.
Plants under stress from insufficient water will not bloom as heavily
as healthy plants. Use
soaker or drip hoses in flower beds. These hoses put the water where
it's needed and are
more economical than overhead sprinkling.
Impatiens respond well to fertilizing. Applying a water soluble fertilizer
when you water
encourages foliage and flower development. You can apply fertilizer
every six to eight
weeks. Apply 3 pounds of 13-13-13 fertilizer per 100 square feet. If
phosphorus level is
high, apply (15-0-15) fertilizer per 100 square feet.
When the summer really begins to bake the garden, impatiens may look
spindly and leggy
with only tufts of foliage at the top of long stems. There's an easy
solution to that problem,
says Williams. Pinch or cut back stems to within three inches of the
plant's base. Impatiens
have suppressed leaf buds along their stems. When you remove the upper
growth, the plant
responds by opening the suppressed buds. This pruning will encourage
a new flush of
growth and blooming for you to enjoy the rest of the season.
SOURCE: DR. DAVE WILLIAMS, extension horticulturist, Alabama Cooperative
Extension System, (334) 844-3032.