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Certain Perennials Found to
Be Salt Tolerant
The following article
was featured in the January 30th OSU Extension News regarding the
findings of Laura Deeter's research on the salt tolerance of perennials.
(She was a speaker at the state Master Gardener Conference last fall.)
WOOSTER, Ohio
- Homeowners and green industry professionals looking to beautify sidewalks,
driveways and roadways subjected to heavy de-icing during winter now have
a variety of salt tolerant perennials to choose from.
Laura Deeter, an
Ohio State University Technical Institute researcher, analyzed 38 species
of perennials and compiled a list of which plants performed the best under
various levels of soil-applied sodium chloride. She found 15 perennial
species that grow well in areas subjected to high levels of salt during
winter, such as along driveways and directly along the edge of roads.
"Plants are continuously
being subjected to urban stresses, including areas that are de-iced with
salt during the winter," said Deeter. "It would be helpful for us
to know what can tolerate that type of urban stress."
For years, researchers
have studied the affects of salt on the growth and performance of
plants to identify which species can tolerate salt absorption through roots
or salt accumulation on foliage and branches. Such studies have produced
lists of woody plants, ornamentals, fruits, vegetables, grasses and forage
crops that are salt tolerant. This is the first time such a list
has been compiled for perennials.
The project involved
subjecting perennial species to various sodium chloride amounts over an
eight-week period and visually inspecting the growth and performance of
the plants for signs of stress. The sodium chloride levels used in
the study ranged from zero to an amount representative of severe northern
wintry weather. Those species that died or faired poorly under salinity
conditions were classified as sensitive or moderately tolerant to salt,
while those that had healthy foliage, shoot and roots were classified as
tolerant and very tolerant to salt.
Species, including
Spendens sea thrift, Karl Foerster feather reed grass*, Helen Allwood pinks,
blue lyme grass and perennial fountain grass were found to be very tolerant
to salt. Other species that were tolerant included Powis Castle wormwood,
Silver Mound artemisia, Elijah Blue fescue, variegated hosta, sea lavender,
Cherry Cheeks and Stella d'Oro daylilies, Autumn Joy sedum, creeping lilyturf
and Palace Purple alumroot.
Deeter also examined
the physiological characteristics of three perennial species to determine
why one species performs well under salt conditions, while another does
not. "We determined that the success of a plant under salt conditions
appears to lie in its ability to regulate where the sodium goes within
the cell," said Deeter.
For example, Spendens
sea thrift, which is very salt tolerant, uptakes sodium in huge quantities
and utilizes it in osmotic adjustment, whereas Blue Stocking bee balm,
which is salt sensitive, uptakes sodium as a replacement for potassium,
resulting in toxicity to the plant and rapid death.
The five-year project,
which first started in the greenhouse, ended in a hand-salted field.
Said Deeter, "I wanted to see if the results of the greenhouse study accurately
predicted salt tolerance during dormancy. And it did for those plants studied."
*‘Karl Foerster'
feather reed grass has just been named the 2001 Perennial Plant of the
Year by the Perennial Plant Association.
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Tri-County Bee Keeper's Association
Workshop
The Tri-County Beekeepers' Association of Ohio, in cooperation with
the Ohio State University Extension, is planning its 23rd Annual Beekeeping
Workshop in Wooster on Saturday, March 3rd. It will be held in Fisher
Auditorium at the Ohio Agricultural Research and Development Center (OARDC).
This year the Tri-County Beekeeper's Association has changed the program
to better serve participants. There will be one keynote speaker,
Dr. Diana Sammataro, Penn State University, and three workshop sessions.
These sessions are designed to teach some of the very basics of beekeeping.
The workshop opens at 8:00 a.m. (with registration from 8:00 a.m. to 9:00
a.m.) and ends at 4:00 p.m. Following the close of the workshop,
the OSU Beekeeping Museum and Bee Barn will open for tours until 5:00 pm.
Pre-registration (prior to February 23rd) is $10.00 and registration
after February 23rd is $12.00. If you wish to have lunch at the workshop,
you must pre-register and the cost of the lunch is $8.00. The Association
wants to encourage young beekeepers, so for anyone 18 years and under,
the registration fee will be waived.
If you have any interest in attending this workshop, please let me know.
I have the registration form that you will need.
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Plant
a Shaker Herb Garden
http://www.growise.com
A religious sect known for
their simple approach to life, the Shakers are often remembered for their
ingenious furniture design. However, their greatest achievement was
in gardening - which developed into a successful enterprise by growing,
processing, packaging and selling vegetable seeds and medicinal herbs to
physicians and apothecaries nationwide. Two centuries ago, their
practical views on gardening stressed simplicity, order, purpose and beauty.
A Shaker herb garden can be created by following some Shaker guidelines:
Shaker Advice
Choose a site.
A level spot with a southern or southeastern exposure is ideal. Locate
near the kitchen for handy tending and harvesting.
Garden with good soil.
Different soils require different mixtures of compost. Loose soil
requires heavy compost. Clay soil requires light compost such as
lime and horse manure. In 1835, Charles Crossman wrote "The Gardeners
Manual", published by the Shakers at New Lebanon, New York, and stated,
"Deep, dry, light and rich, are the essential requisites of a good garden
soil; and if not so naturally, it should be made so." Priced at six
cents, the booklet educated American gardeners about the practical aspects
of gardening.
Sow seeds. Seeds
can be sowed after the soil has warmed and the danger of frost has passed.
Never plant too deeply. Cover seeds with the best layer of soil possible.
Keep seeds watered to encourage germination.
Neatness prevails.
According to Crossman's manual, the Shakers compared the garden to
"an index of the owner's mind", and suggested gardens be neat and tidy;
plant rows straight and beds square. Today's gardens with intermingling
plants randomly planted would be considered by the Shakers as creations
of a lazy, complacent gardener. Garden rows were parallel and straight,
plants were spaced out in orderly fashion, and weeds were not allowed.
To capture the fastidious appearance found in Shaker gardens, a brick edging,
a low stone wall or a picket fence can complement the garden.
Remove weeds.
The Shakers compared the cultivation of a garden to the cultivation of
the mind, so it is no surprise that they considered weeding a metaphor
for spiritual cleansing - removing weeds was like removing impure thoughts;
cleanliness was next to godliness. Today, mulch is a good weed controller.
The Shakers used mulch only as winter protection and considered it impure
refuse placed upon pure, bare soil.
Keep annual records.
Begin a garden journal in the spring. Note annual occurrences in
your area - when particular birds arrive, when others depart; the flowering
and leafing of trees and shrubs. These happenings can serve as an
indirect measure of outdoor temperature. Keeping planting and harvesting
records were part of the Shaker belief in order. Records remove guesswork
and serve as references for timing garden tasks throughout the seasons.
Shaker Garden Herbs
SAGE (Salvia officinalis)
perennial; gray-green leaves; early summertime purple flowers. Pleasantly
bitter-lemon flavor; seasoning for soups, stews, meat dishes. Shakers
dried leaves for medicinal remedies for colds, coughs or fevers.
SUMMER SAVORY (Satureja
hortensis) known as the bean herb; annual; slender purplish-green leaves.
THYME (Thymus vulgaris)
hardy perennial; bushy low grower; hint of clove taste; mauve flowers.
Flavor meat dishes, stocks, breads, vegetables; popular French cuisine
herb.
BEE BALM (Monarda
didyma) or Oswego tea - perennial flower in pink, purple, crimson, salmon
and white. Pungent mint leaves garnish punches, iced teas and fruits.
LEMON BALM (Melissa
officinalis) lemon-scented perennial; makes soothing hot or cold tea.
Shakers used it to relieve fevers.
ROSES (Rosa gallica
‘Officinalis') apothecary rose and (R. damascena) damask rose were grown
by Shakers for fragrant petals distilled to produce rose water; lovely
even as perfume and flavoring.
CULINARY SEED HERBS
- dill, fennel, coriander and caraway were used for digestive ailments.
Fragrant foliage and tasty seeds are benefits of seed herbs.
Create a Shaker garden and
you will be reminded of a well-known Shaker adage, "If you would have a
lovely garden, you should live a lovely life."
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Not All Alien
Invaders Are From Outer Space....
-US Department of Agriculture-
Asian Longhorned Beetle, Anoplophora glabipennis
"This beetle's appetite for hardwood
could spell destruction for America's
trees and could change landscapes
for generations to come..."
The Asian longhorned beetle is a native of China. It was first found
in 1996 in New York City and Amityville, New York (on Long Island).
Since then, it has also been found in the Ravenswood neighborhood of Chicago
and in two suburbs of Chicago, Summit and Addison, Illinois. Scientists
think that the beetle got into the United States via the wood of crates
and pallets used in shipping cargo from China.
Asian longhorned beetles are big, showy insects, shiny and coal black
with white spots. Adults are about one inch long. On their
head is a pair of very long feelers (antennae) that are black with white
rings. These antennae are even longer than the insect's body.
This beetle has a voracious appetite for wood. It especially likes
the taste of maple trees: Norway, sugar, silver, and red maple are among
its favorite foods. But the Asian longhorned beetle doesn't limit
the menu. It also feeds on horsechestnut, poplar, willow, elm, mulberry,
and black locust. Females of this species chew into the bark and
lay eggs. When the eggs hatch, the immature beetles, which look like
big white worms, chew their way farther into the tree. When they
mature, the full grown beetles chew their way out of the tree. The
beetle life cycle leaves trees riddled with holes oozing sap.
The only way to get rid of Asian longhorned beetles is to cut down,
chip, and burn the trees. Since 1996, more than 3,000 trees have
been destroyed to eradicate this pest in New York and Illinois. This
beetle's appetite for hardwood could spell destruction for America's trees
and could change landscapes for generations to come.
Purple Loosestrife, Lythrum salicaria
"Although it is very attractive, this plant
is deadly to American wetlands
because it crowds out the native
plants that support bird and animal
populations in marshy areas..."
Purple loosestrife is a pretty, purple-flowered plant that was brought
to the United States from wetlands areas in Europe in the early 1800's,
most likely because of its ornamental value. Although it is very
attractive, this plant is deadly to American wetlands because it crowds
out the native plants that support bird and animal populations in marshy
areas. Purple loosestrife, also known as the purple plague, got its
American start in New England. From there, it spread rapidly north
into Canada, south into Virginia, and west through the states bordering
the Great Lakes. Currently, it can be found throughout the United
States and is menacing the wetlands in the Northeast and upper Midwest.
Purple loosestrife is a big, long-lived perennial (life cycle lasting
longer than 2 years) that can grow almost 6 feet tall. Its square,
tough stems grow in a cluster and support lance-shaped leaves about 3 inches
long. At the top of the stems are flowers ranging in color from deep
purple to bright magenta.
Each mature plant produces more than a million seeds that can be carried
by wind and water. Adult plants can also regrow from just roots or
pieces of stems. These qualities make purple loosestrife a terrific
reproducer.
This plant is used for landscaping in some states because of the beauty
of its flowers. Purple loosestrife is also used by beekeepers because
of its sweet nectar. Currently, purple loosestrife is listed as a
noxious weed by about two dozen states. This means that the plant
cannot be brought into those states or sold in nurseries there.
Unfortunately, researchers have not found any species of wildlife that
can make use of loosestrife. Once it starts to grow in the wild,
it displaces native plants that are useful to wildlife. The fact
that purple loosestrife is a long-lasting perennial and can produce so
many seeds makes it a serious threat to the wetlands in the United States.
It can take over areas such as lake shores, streambanks, and marshes and
then outspace most native plants, including some species of endangered
orchids. After only a few summers, fields of the purple plague can
grow to thousands of acres, virtually eliminating marsh and wetland habitats
with its dense clusters of stems.
Zebra Mussel, Dreissena polymorpha
"This pest is a plague and shows
that even pint-size invaders
can cause big trouble..."
A relatively new invader, the zebra mussel is believed to have come
to America in the ballast tanks of a transoceanic ship. Native to
Europe's Caspian and Black Seas, the zebra mussel was first found in North
America in 1988 in Lake St. Clair between Lakes Huron and Erie. Since
then, the zebra mussel has spread throughout the Great Lakes and waterways
of at least 19 states, including the Hudson, Illinois, Mississippi, Ohio
and Tennessee Rivers. Currently, the zebra mussel is extending itself
to the West via the Arkansas River and other tributaries. It remains
unstopped by predators and parasites, leaving all waterways of North America
wide open for invasion.
Zebra mussels are very small with brown and black bands. Fully
grown, they are only two inches long. By themselves, these mussels
don't look threatening. But one adult female can produce 30,000 young
each season, and occasionally there are two spawning seasons in a year.
The first season is from June until mid-July and the second, when it occurs,
takes place between August and October. The zebra mussels' young
can attach themselves to any hard surface - a rock, a pipe or even the
shell of another sea creature.
The threat of the zebra mussel lies in its ability to reproduce in large
numbers and in the fact that it can stick to anything hard. Oftentimes,
zebra mussels will block intake pipes to factories and water treatment
plants. The mussels will blanket marina and can crowd out native
bivalve species like freshwater clams. Sea creatures with shells
often fall victim when literally hundreds of zebra mussels cover them,
preventing them from feeding, growing, moving, breathing and reproducing.
Two years after the zebra mussel's introduction into Lake St. Clair, all
hard-shelled native species in the lake were encrusted by the invasive
mussel. Several native species were destroyed completely.
This pest is a plague and shows that even pint-size invaders can cause
big trouble.
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