HAVE YOUR WATER AND GARDEN, TOO
By Dr. Leonard Perry
Extension Greenhouse and Nursery Crops Specialist
University of Vermont
Lately, it seems like every time you turn
on the local weather forecast, the meteorologist is
talking about drought conditions. If you are in a severely
affected area, or under water restrictions, this doesn’t
mean you have to give up gardening. By following some
drought-wise garden water tips, you can have your water,
and your garden, too.
You may have come across the term “xeriscaping”
(pronounced zer-a-scap-ing), referring to dry climate
gardening. Many people associate this term with deserts,
cacti, and succulent plants. But with dry climates in
much of the country now, this term means much more and
definitely does not mean “zero-landscaping.”
This spring about one-third of the country
is experiencing some level of drought conditions with
about one-third of the country in a drought watch area.
Some states and many counties, including all 14 counties
in Vermont, were made eligible for emergency farm drought
aid this spring. Some mid-Atlantic states imposed water
restrictions earlier this year.
To keep up with current drought conditions
through articles, links, and maps, visit online the
National Drought Mitigation Center (www.enso.unl.edu/ndmc/watch/watch.htm).
The University of Massachusetts has a website just for
drought information for New England (www.UmassDroughtInfo.org)
So how can you save or recycle water,
or use less?
–If you have water restrictions in your
area or town, find out what they cover. If drought conditions
aren’t too severe, they may just cover use of lawn sprinklers
and not watering of gardens.
–Water in the early morning, when there
is less heat and wind, so less water is lost to evaporation.
Timers on automatic watering systems make watering very
early much easier.
–Don’t use overhead sprinklers, which
may lose over half the water to evaporation on a hot
day. Instead use manual watering, soaker hoses, or drip
systems. Soaker hoses are simply permeable hoses, often
made of recycled materials, which allow water to soak
through them slowly. Placed on beds near plants, they
provide a slow trickle of water to the root zone. If
you cover these hoses with mulch, they lose even less
water to the air and are invisible.
–Water deeply and less often rather than
for shorter periods more often. This allows water to
penetrate deeper, and thus encourages deeper roots that
are more resistant to drought. Lawns and bedding plants
should be watered to at least six inches deep. Perennials,
shrubs and trees should be watered to at least 12 inches
deep. Use a rain gauge to check the amount of water
from your sprinkler or rainfall. These are available
from garden and hardware stores. One inch of water will
wet a sandy soil to a depth of about 12 inches.
–Water established plants only if really
needed and once they begin to wilt. Many perennials
and woody plants may wilt, and not perform best if dry,
but will survive. This is especially true if they were
healthy and well watered prior to drought conditions.
Only a few perennials such as false spirea (Astilbe)
have leaves that turn brown and don’t recover if dry,
but have to generate new leaves.
Collecting, Saving Water
–Repair leaks in hoses and fittings.
This may be as simple as replacing the washers in hose
fittings. A slow leak of one drip per second can lose
nine gallons of water a day, 260 gallons a month. A
faster leak, filling an eight-ounce cup in eight seconds,
wastes 675 gallons a day, or 20,000 gallons a month!
–Collect wasted and “gray”
water from your household. The latter is rinse water
from dishwashers and from washing dishes. When adjusting
the hot and cold in baths and showers, use a bucket
to collect the water that would normally go down the
drain before the temperature is adjusted. You also can
collect and reuse water from dehumidifiers or window
–Collect water from downspouts of gutters,
or divert these directly into flowerbeds.
Other areas to consider in the landscape
for conserving water are in the proper use of cultural
practices, containers, and responsible lawn care.