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Showing posts with label indoors. Show all posts
Showing posts with label indoors. Show all posts

Tuesday, December 29, 2009

Bring early spring to your home with indoor gardening

(ARA) - Do images of flowering trellises laden with yellow, pink, green and purple blooms dance through your dreams? You may be ready for some warm spring-like temperatures, but the weather outside is still a little frightful. Ignore the weather and bring spring inside with some indoor gardening.

Not only does bringing spring inside help brighten your home, but houseplants can also improve the quality of the air you're breathing. A NASA study found that houseplants remove up to 87 percent of toxic indoor air inside a sealed chamber within 24 hours.

By planting now, while winter is still in the air, you will have vegetables, herbs and flowers primed for transplanting when warmer weather finally arrives. And since they're inside, you can watch the plants as they shoot their little green stems out of the fresh dirt, monitoring them as they grow.

* Use loose potting soil to promote root growth. Outside, worms and insects tunnel through the dirt, naturally breaking it up to help plants spread their roots. To mimic their effect indoors, use potting soil mixed with peat moss, vermiculite and perlite to create a light texture that won't compact after a couple of waterings.

* Make sure the natural light is adequate. Some plants like direct sunlight and must be located near a south-facing window, while others prefer a few hours of indirect light. But to really keep your herbs and flowers looking strong all season long, consider using artificial light like the Grow Light Pro White from Wards.com, which can also help you get your spring garden started early with seedlings. The Grow Light has four lights that can be turned on as a unit or individually, and it has an adjustable bottom shelf so you can alter the light level as your plants grow.

When plants don't get the light they need, they start to appear thin and frail. As your plants begin to grow, make sure to rotate the pots so the stems grow straight, rather than bending unnaturally toward the source of light.

* Keep the humidity level above 50 percent with a humidifier. Not only will your plants appreciate the extra moisture, but so will you. When the humidity drops below 50 percent, most plants suffer from water loss through their leaves, and it's difficult to regain that water balance, even with frequent watering.

* Really bring spring inside your home with beautiful pots and decorating accents. Visit Wards.com to find beautiful and creative birdhouses that not only are functional, but stylish enough to hang inside. Consider hanging a wire birdhouse in the shape of an acorn in the kitchen window, or using a set of two birdhouses as a unique decoration for your entryway.

* Mix art and fun together with some ivy. Ivy topiaries are very easy to grow, and there are many creative planters and forms you can use to support the ivy as it winds its way toward the sun. Are you a music fan? A guitar and music stand with little pots incorporated into the design can help brighten up your living room. Or maybe you prefer a vintage look created by placing a Madeline Dress Form over your vines, allowing them to grow and construct the skirt. Both styles are available at Wards.com.

Courtesy of ARAcontent

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Wednesday, December 02, 2009

UGA research shows some plants can remove indoor pollutants

Some plants have the ability to drastically reduce levels of indoor pollutants, according to new research at the University of Georgia. Researchers showed that certain species can effectively remove air-borne contaminants, including harmful volatile organic compounds, suggesting a critical new role for plants in home and office environments.

Of the 28 plants tested, researchers identified five “super ornamentals”—those that had the highest rates of contaminant removal, a process called phytoremediation. These include the purple waffle plant (Hemigraphis alternataa), English ivy (Hedera Helix), variegated wax plant (Hoya cornosa), Asparagus fern (Asparagus densiflorus) and the Purple heart plant (Tradescantia pallida). Placed in glass, gas-tight containers, the plants were exposed to a number of common household VOCs, including benzene, toluene, octane, alpha-pinene and TCE. The work, funded by UGA’s Agricultural Experiment Stations, was published in the August 2009 issue of HortScience.

“The idea that plants take up volatile compounds isn’t as much of a surprise as the poor air quality we measured inside some of the homes we tested,” said Stanley Kays, UGA horticulture researcher and one of the study’s authors. “We found unexpectedly high levels of benzenes and many other contaminants that can seriously compromise the health of those exposed.”

In fact, harmful indoor air pollutants can cause a host of serious illnesses, including asthma, cancer, reproductive and neurological disorders—and more than 1.6 million deaths a year, according to a 2002 World Health Organization report. The VOCs emanate from furnishings, carpets, plastics, cleaning products, building materials like drywall, paint, solvents and adhesives. Even tap water can be a source of VOCs. The air inside homes and offices is often a concentrated source of these pollutants, in some cases up to 100 times more polluted than outdoor air, according to research.


Why some plants are very effective at remediation—while others show little promise—is a mystery. “That’s one of the things we want to learn,” said Kays. “We also want to determine the species and number of plants needed in a house or office to neutralize the problem contaminants.”

Kays, D.S. Yang and S.V. Pennisi at UGA collaborate with researchers at Konkuk University in Seoul and at the National Horticultural Research Institute in Suwon, Korea, “where scientists are substantially ahead of us in phytoremediation research,” said Kays. “My colleague, Kwang Jin Kim, has evaluated the ability of 86 species to remove formaldehyde in indoor environments.”

Not all VOCs are toxic, and plants themselves emit some VOCs, though most appear not to be toxic, at least at normal exposure levels. But Kays said a lack of information about chemical toxicity—and an affordable method for measuring interior air quality—makes assessing their presence and safety more difficult. Fifty million organic and inorganic chemicals are now registered in the CAS system, a registry that includes chemical substances identified since 1957.

Kays said simply introducing common ornamentals into indoor spaces has the potential to significantly improve the quality of indoor air, but further research could help scientists refine the concept.

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Tuesday, November 03, 2009

Bring potted plants indoors

When wintry weather rolls in, landscape plants must fend off cold temperatures and frost on their own. But some potted plants are lucky enough to get a free pass indoors.

Without proper care, though, these new houseplants can have difficulty living through the winter indoors. There are some things you can do to make sure they survive just fine.

Temperature level essential

First, consider the temperature. Many container plants live on outdoor porches during the summer and early fall months. As temperatures dip to 50 degrees or less, plant owners begin to move plants indoors.

The best way to protect outdoor potted plants is to first bring them into a garage or basement that is a little warmer than the outdoors, but not as toasty as inside the house. If the plants are moved immediately from 50 degrees to 75 degrees, some may become stressed and suffer.
Plants should be acclimated slowly by a gradual increase in temperature. After a week or two, bring the plants into the warm house.

Most house plants grow best in daytime temperatures between 65 degrees and 75 degrees and nighttime temperatures between 60 degrees and 65 degrees. To further protect them, keep houseplants away from cold, drafty windows or hot radiators, stoves or air vents. Also keep houseplant foliage from touching cold windows. This can burn the leaves.

High humidity best

Humidity is important. Most houseplants prefer a humidity level of 40 percent to 50 percent. The relative humidity in most homes is closer to 15 percent – a level much too low for most houseplants.

Raise humidity levels by using a humidifier or grouping plants together. Placing houseplants on saucers filled with gravel or small pebbles and water will also increase humidity. The bottoms of the pots should always be above the water level.

Don’t mist houseplants in an effort to raise the relative humidity. Misting would have to be done several times throughout the day to have any real affect.

Water, but not too often

In general, houseplants don’t require as much water during the winter months. That doesn’t mean they can be completely ignored. The type of houseplant and soil will determine the water needs.

Ferns prefer evenly moist soil and fairly frequent watering. Cacti and succulents should only be watered when the potting soil becomes completely dry. Most houseplants fall somewhere between these extremes and should be watered when the soil is barely moist or almost dry to the touch.

When watering, apply a thorough amount. Water the plant until water drains out of the bottom of the pot.

Be sure that plants have good drainage. Never allow plants to sit in excess water unless the pot is placed on gravel to raise humidity.

Clean but don't fertilize

Drastically reduce or eliminate fertilizer during the winter months since most plants grow very little. Fertilize again in late March or April as growing conditions improve and the plants begin to flush out.

It’s important to keep houseplants clean while they rest through the winter. Grease and dust can accumulate on leaves and slow down the normal transpiration. Cleaning houseplants also improves their appearance, stimulates growth and can help control insects and mites.

Large, firm-leafed plants can be cleaned with a soft sponge or cloth dipped in a mild solution of dishwashing soap and lukewarm water. Leaves can also be cleaned by placing the plants in the shower under lukewarm water.

By Bob Westerfield
University of Georgia

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