is the next most important factor in producing healthy plants that will grow and flower for you. Winter temperatures should be a minimum of 60 to 55 °F (16-13 °C). Try to keep it on the warmer side. Day temperatures can reach 95 °F (35 °C) with no ill effects. Warmer temperatures will cause your orchids to grow faster. Remember the humidity
and air movement
requirements need to be adjusted to the temperature.
When you water, keep in mind your orchids must dry quickly to avoid rot forming on your plants. Misting
during the day will give them moisture and if they are in baskets, be sure to mist the roots that will be hanging around. If it is warm and dry you may need to water daily. Water sparingly in the winter or when the weather is cloudy and cold.
, of course, is needed to help maintain the growth. A well-balanced fertilizer can be used weekly at full strength while they are growing. During cold weather, only fertilize once or twice a month because the growth rate slows down. To help promote blooming, you may try a high-phosphorus fertilizer once a month during active growth.
When your plants outgrow their containers, try to do your repotting in the spring. Potted plants should use coarse media such as fir bark, charcoal, tree fern fiber, coconut chips or any fast draining material. Orchids growing in baskets will not have to be repotted often.
When they have outgrown their baskets, place the entire plant and basket into a larger basket without disturbing the plant. After potting, keep your orchid shaded area and adjust the humidity higher then normal until you see active root growth.