Paphiopedilums

TEMPERATURE

Paphiopedilums prefer intermediate to cool growing conditions. While some tolerate a warmer environment, many need a nighttime drop in temperature to set flower buds. The optimum temperature range is between 55° F and 80° F (13° C and 27° C) However, the plants are not harmed by short exposures to greater temperature extremes, from 40°F to 100° F (4° C to 38° C). Many cool growing types can withstand an occasional nighttime dip down to 32° F (0° C), making them ideal for outdoor culture in mild, frost-free climates. Warmer growing paphs, including multifloral (strap leaf), Brachypetalum and maudiae types, are best grown in a glasshouse.