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Potting a Phalaenopsis


Question
When I bought and repotted a grocery store phalaenopsis, I used a double pot ?one unglazed pot set inside a glazed pot water reservoir. Keeping the water level low seems to keep the medium (a bark mix) evenly very slightly moist, not wet. So far, so good, and it抯 had blooms constantly from October to this week. Any thoughts or suggestions about the pot system I'm using?

Answer
Cindy, you didn't mention drainage (ie the number of holes in the pot bottom) nor the type of potting mix the plant is in.  I prefer a type of pot (preferably plastic) that lets the water from each watering drain away.  I also prefer an orchid potting mix that has coarse particles such as fir bark which allows air to flow through the mix.  Any water that is in constant contact with a potting mix will wick into the mix and keep at least the bottom part of the mix moist.  This can eventually lead to root rot.  You didn't mention leaf or root growth during the flowering period.  Plants that spend their energy in constant flowering usually don't produce new leaf and root growth.  If you have good root and leaf growth,then who's to argue with success.

If you want to play it safe, remove the flower spike,unpot the plant and check the roots.  Any roots that are mushy are dead and should be removed before repotting.  This will also give you an opportunity to assess your growing method to see if it is root friendly or needs to be converted to a more conventional method of growing the plants.

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