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Water holding capacity, drying percent of media after watering, stomatal conductance and transpiration rate of leaves, growth and mineral content of shoot and roots as affected by 8 kinds of potting media with Cym. goeringii, Cym. kanran ´Jeju´×Cym. kanran ´Dosakwan´, Cym. niveo-marginatum and Cym. gyokuchin were investigated. Water holding capacity in sphagnum moss was highest as 1,109%, whereas 132% in pumice. But after 20 days of watering, drying percentage of sphagnum moss was 98% whereas 37% in pumice. Stomatal conductance and transpiration rate of leaves of 4 kinds of temperate Cymbidium sharply decreased by increasing days after watering. Stomatal conductance and transpiration rate directly after watering in Cym. goeringii showed 1.55 ㎝s^(-1) and 9.01 ㎍㎝^(-2)s^(-1), respectively, but these decreased to 0.15 ㎝s^(-1) and 1.03 ㎍㎝^(-2)s^(-1) after 4 days of watering. Shoot and root growth of cymbidiums were stimulated when planted in the bark, leaf mold, habitat soil and carbonized rice hull as potting media compared to sphagnum moss which favored for the growth of hybrid obtained by crossing of Cymbidium kanran species. Nitrogen content of shoot and root increased when plants were potted in leaf mould and habitat soil as potting media which resulted in the promotion of growth. Phosporus content was higher than potassium content in sphagnum moss and carbonized rice hull. Leaf and root analysis indicated that there was a high demand of potassium for optimum growth of temperate Cymbidium.
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