March 27, 2006
One of the most enjoyable responsibilities of my occupation is sharing
my expertise with new gardeners. As the new gardening season begins the
customers have lots of questions on how to prepare the soil, what
plants
to select and how to plant them. Some just want their lawn to look
better while others would like to start a vegetable garden to enjoy
fresh produce.
A vegetable garden can be as simple as a few large containers on the
deck or a more ambitious project that occupies a large portion of the
yard. Knowing when and how to plant certain vegetables is important for
the garden to be a success. Many new gardeners are surprised by how
early some plants are put out into the garden, assuming that since it
is
still cold it’s too soon to plant. But lettuce, spinach, arugula, peas,
broccoli and cabbage all produce best at cool temperatures before the
high heat of summer. All of these can be planted now.
Potatoes, asparagus, onions, rhubarb and strawberries are also planted
in early spring. Each of these has a particular method of planting.
Onions can be started by seed, sets or seedlings. Seed takes the
longest, often reaching only the size of scallions. Sets are small
bulbs
that can be planted two inches deep and 2-4 inches apart. Once they
grow
to scallion size they should be thinned to at least 4 inches apart. Use
these thinnings as you would scallions. The seedlings are planted
similarly. Harvest time is during the summer after tops start to brown.
Seed potatoes are available now at the garden center for planting in
April. These look just like the potatoes found in the grocery store but
are actually specifically for planting. They need to be certified virus
free. Potatoes are susceptible to virus diseases, resulting in poor
crops. The seed potatoes are first cut into pieces for planting. Each
piece should have at least two eyes. Set the pieces on a tray to cure
for 24 hours prior to planting. The pieces can be planted 3-4 inches
deep and a 12 inches apart, leaving 24 inches between rows. As the
foliage grows rake up more soil around the base of the plants to keep
the tubers covered (hilling up). Harvest will be sometime in the summer
depending on the variety.
Asparagus and rhubarb are the only two perennial plants of the
vegetable
garden. Preparing the soil is important since these crops will be there
for many years. Each asparagus plant needs 12-18 inches of row space.
The bed should be at least 4 feet from another crop. It’s a good plant
for the back of the garden. Select a male variety such as Jersey King
or
Jersey Giant for better quality spears. Start by digging a trench 8-10
inches deep and 12 inches wide. Add some 5-10-10 fertilizer, a little
lime and some compost to the trench. Mound the soil in the trench
slightly. Asparagus plants, sold as one year old crowns, are planted on
the mound spreading out the long roots. Cover the crowns and roots with
2-3 inches of soil. Gradually fill in the trench as the foliage grows
through the season. Asparagus is not harvested the first year. The
second season harvest sparingly, more in the years thereafter.
Soil preparation for rhubarb involves loosening the soil in the
planting
area and adding a balanced fertilizer such as 10-10-10. Roots are set
in
the soil with the crown even at ground level. The stalks can be
harvested after the second season. The leaves should never be eaten as
they are toxic.
Strawberries are also sold as small plants or crowns. Plant the roots
straight down, taking care that the crown is even with ground level.
Allow 10-12 inches between plants. Fertilize sparingly, but use straw
mulch to discourage weeds. It is recommended that flowers be removed
the
first year and harvesting begins in the second season.
Delaying harvest of these crops to the second or third season allows
the
plants to grow strong root systems and produce quality harvests for
many
years to come.
Beth Nardone, botanist, is a resident of Hillsborough and is the
Nursery
Manager at the Belle Mead Co-Op. Questions and comments can be sent to
bethtanical@patmedia.net <mailto:bethtanical@patmedia.net>
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