| April
In Your Garden
If T.S. Eliot
thought April was the "cruellest month," he certainly
didn't spend much time in the Washington area. Aside from the
world-famous cherry blossoms, local gardeners contribute their
own dogwoods, azaleas, tulips, pansies, and other blooming plants
to make April the most colorful month of the year. But even if
you can't find the time to cultivate your own garden, you can
still enjoy the Spring colors with a trip to the National Arboretum
or a drive along the George Washington Parkway.
While it's
always tempting this time of year to get out in the garden, local
enthusiasts should be aware that the last frost dates in our area
range from April 15th to May 7th-- Pay special attention to the
weather reports for the next couple of weeks and be prepared to
cover tender annuals if cold temperatures are predicted. If cold
nights are forecast (and we can probably expect at least a few
before the weather warms up for good), protect the tender new
growth overnight with sheets, blankets or burlap.
LAWN
CARE
- If you
didn't have time in the Fall to get your lawn in shape, Spring
is the second best time as soil temperatures rise and lawns
break from dormancy.
'Feeding now (if you didn't feed in Fall) will help to green
up the lawn. Try the 'Safer Lawn Fertilizer' 8-1-1. This slow
release organic fertilizer is loaded with beneficial soil microorganisms
that will improve the health of your soil, and in turn strengthen
your grass. These beneficial microorganisms help prevent many
lawn diseases from taking over. Do not over-seed at the same
time you apply the 'Safer Lawn Fertilizer'.
Apply high calcium Lime now to raise the soil pH, making it
easier for the grass to grow and harder for weeds to grow. A
strong stand of turf will out compete most weeds.
AROUND
THE GARDEN
- As daffodil
and tulip bulbs finish flowering, cut off the spent blooms and
their stalks, but leave the foliage until it turns yellow and
dies back. Don't try to tie up leaves, either; just let the
plant grow naturally so it can store energy for next year. If
you want to divide or move clumps of daffodils or other bulbs,
wait until the foliage yellows, then dig them up and replant
them. (You can also wait until fall to dig them up, but they're
easier to find when the foliage is still attached. You also
have a clearer memory now of what your spring garden looks like
and any holes you'd like to fill in for next year.)
- Watch carefully
for emerging perennials (plants that come back from year to
year) - some break dormancy later than others, and even the
same variety may emerge at different times in different parts
of your garden. Avoid digging in areas where you may disturb
plants you just can't see yet. Among those to break dormancy
relatively late are asclepias (butterfly weed), platycodon (balloon
flower), hardy hibiscus.
- Place cages
or grow-through rings over peonies as they emerge - it's much
easier than trying to corral them when they're big enough to
flop all over the place. You can do the same thing with any
other plants that flopped over last year.
- Now is
a good time to divide existing perennials and begin planting
new ones. Summer blooming bulbs such as Dahlias, cannas or gladiolas
may also be planted this month. Feed with Feed with 'Plant-tone'
or 'Neptune's Harvest' Fish & Seaweed Fertilizer.
- Now is
also a great time to plant your perennial garden. However, avoid
unnecessary tramping through beds or digging in the soil when
it's wet - it compacts the soil.
TREES
AND SHRUBS
- Late March
and early April are good times to prune deciduous (non-evergreen)
trees and shrubs that bloom on new wood. Cut Buddleias (Butterfly
Bushes) back to 12-18 inches to keep their size in check and
to encourage heavier flower production. Caryopteris shrubs also
benefit from a hard pruning now. Prune the tips of Crape Myrtles
for a neater appearance now and heavier bloom this summer. Feed
with 'Plant-tone'.
- In early
April, cut back ornamental grasses (including liriope) to within
a few inches of the ground if you haven't yet done so. New growth
is about to emerge.
- April is
the best month to plant and transplant trees, shrubs, grasses
and ground covers.
- Scout for
Eastern Tent Caterpillar egg masses (dark, shiny, one-inch long
masses encircling tree branches) and Gypsy Moth egg masses (fuzzy,
orangish tan, one inch long masses) if you had problems with
these pests last year. Removing these egg masses by hand before
they hatch will reduce the populations in your yard this year.
- Insect,
disease, or other cultural problems? Bring in a branch or some
leaves and one of our certified horticultural professionals
will be glad to diagnose your problem and give you advice on
how to treat it.
- After all
the enjoyment they give you don't your azaleas, rhododendrons,
pieris, and camellia deserve a treat? Feed these acid loving
plants with 'Holly-tone'now. They will thank you with new growth
over the Summer and another brilliant show of color next Spring.
- Work the
soil well and mix in a generous quantity of organic matter such
as Leafgro or Bumper Crop, as much as 50% by volume. In very
heavy clay soils also mix in some 'Pine Bark Soil Conditioner'.
Water well and often if we're not getting an inch of rain per
week.
- Have you
begun your rose care schedule? If not, It's time to start feeding
and begin preventive treatments for fungus and disease. Drop by
American Plant's nursery for a look at our selection of roses
and to get more information on rose care.
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VEGETABLES
& HERBS
Plant cool
weather vegetables such as mustard greens, spinach, lettuce, and
peas this month. You can plant seeds directly into your garden or
get a head start by planting our seedlings. Broccoli, cabbage, brussel
sprouts and cauliflower need a head start in order to mature in
your garden before hot weather sets in. Plant seedlings of these
plants this month.
Herbs that can
be planted this month include parsley, thyme, rosemary, sage, mint,
oregano, tarragon and dill. Wait until May to plant basil; it won't
do well until the soil has warmed up and night temperatures are
consistently warmer.
Towards
the end of the month, you can plant beans, summer squash and corn
in the warmer parts of our area. Wait until the soil has warmed
in May to plant tomatoes, peppers and eggplant. Studies have shown
that there's little or no benefit to planting tomatoes before night
temperatures are above 55 degrees. Tomatoes planted later actually
grew faster and produced earlier than the same varieties planted
out earlier.
HOUSEPLANTS
As the days
get longer, houseplants start to grow more vigorously. Feeding your
houseplants with 'Osmocote' Fertilizer will keep them actively growing
the whole season long.
Remember that
houseplants must be treated individually and each has different
watering needs. Make sure to feel the soil to determine a
plant's needs before watering.
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