Paphiopedilum are divided into two temperature groups: warm and cool
growers. The attractive mottled-leaf types come from the temperate zones and do
best with a night temperature not below 60 degrees F. (preferably 65 degrees
F.), and a day temperature of 75-85 degrees F. The solid green-leafed types
come from the higher, cooler altitudes. They require a night temperature of
50-60 degrees F. and a day temperature of 70-80 degrees F.
Water:
Paphiopedilum must be kept constantly moist or damp, but
not soggy. Check frequently below the surface to determine the need for water.
Normal watering intervals are between seven and ten days.
Light:
Place in any bright window but protect from mid-day sun. Leaves should be a
medium-green color. If they are too pale or yellowish, the plant could be
getting too much light. (Approximately the same light intensity as African
Violets is preferred.)
Feeding:
Good results may be obtained by using a high nitrogen fertilizer (25-9-9) all year round. Feed once a month at
one-third of a teaspoon or less to a gallon of water. Paphiopedilum are sensitive to fertilizer burn.
Repotting:
Paphiopedilum should be repotted every two to three years with a fresh, well draining potting medium,
such as fine-grade orchid bark or Orchid Mix. It is important that the base of the growth be potted no deeper than 1/2" in the medium.