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REPOTTING YOUR ORCHIDS
Each orchid genus has different requirements for potting media. It is very important to have the correct medium for each type of orchid, depending on whether it is terrestrial or epiphytic—tree dwelling. Growing media commonly include fir bark, coconut husk, sphagnum moss, tree fern fibers and perlite, and frequently a mixture of two or three of these materials. All orchids potted in a typical bark medium need to be repotted every 18 to 24 months, depending on the needs of the individual plant.

The primary purpose of repotting is to provide fresh media, not necessarily a larger pot, but pot size should be selected according to the size of the root mass. Orchids like to be a little tight in their pots. Orchids transferred to overly large pots tend to concentrate their energy on root growth and may not show new growth or foliage for several months.

Orchids may be potted in plastic, clay or decorator pots, and the type of pot selected may influence watering frequency; plants in clay pots will need more frequent watering, as they will dry out a little faster. Always select pots with drainage holes; orchid roots in contact with standing water will rot and die, killing the plant. Media in the center of larger pots may remain wet for long periods and become an unhealthy environment for roots. This can be avoided by placing pieces of broken terra cotta in the bottom of the pot. A smaller pot inverted into a larger one can also help with drainage and aeration, with the roots of the plant draped over and around the smaller pot. Some orchids, such as Phalaenopsis, have roots capable of photosynthesis. For these plants, clear pots have become popular, as they allow light to get to the roots.

THINGS TO CONSIDER: Orchids should not be repotted without a compelling reason. If, for example, aeration of the potting materials is poor because of decomposition, it must be replaced. Care must be taken to ensure that new growths and shoots are not overlapping the rim of the pot—large, neglected plants that have been potted for a long time are notoriously difficult to handle, and it is easy to break off new shoots and roots. But, when in doubt, put it off for another year!

13 years ago. Rating: 1
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Orchids are generally hardy plants that can survive in a variety of environments. Like with any living thing, though, there are times when orchids need some extra attention. The following steps will help get your sick orchid back on track. The proper fertilization, humidity, light and temperature will make a world of difference for your orchid.

Difficulty:
Moderate

Instructions
things you'll need:

* Stones or bark
* Humidifier
* Fluorescent light bulbs
* Fertilizer

Get what you need for every
project at HomeDepot.com

1.
* 1

Check your orchid's roots. Orchids need to grow in pots with material that is not packed tightly like potting soil. Make sure that your orchid's roots have proper ventilation with loose stones or bark in the pot.
* 2

Fertilize your orchid at least once a week with a 20-20-20 mixture of nitrogen, phosphorous and potassium. During the fall blooming season, switch to a fertilizer that is lower in nitrogen and higher in phosphorous.
* 3

Place your orchid in a southern or eastern window that will provide at least six hours of light a day. Artificial light from fluorescent bulbs can be used if natural sunlight is not possible. Orchids need light in order to bloom.
* 4

Lower the temperature of your orchid's environment by at least 10 degrees at night to simulate its natural environment. This will stimulate bud growth in the orchid and will help stimulate a sluggish or dying flower.
* 5

Place a humidifier near your orchid. Orchids like higher humidity that most households don't provide, so by temporarily placing a humidifier near your orchid it will stimulate growth.


Read more: How to Care for a Dying Orchid | eHow.com http://www.ehow.com/how_5746275_care-dying-orchid.html#ixzz1Lc2d5Xcn

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