New flower buds will not form on an old orchid flower spike that has turned yellow or brown. If this happens, the entire spike should be removed. After flowering, the orchid should be fertilized monthly or as often as weekly with a houseplant fertilizer o
HOW TO WATER ORCHIDS Most orchids live in or on a potting medium made of bark instead of soil, so they must be watered differently than most houseplants. Learn how to water orchids for maximum results.