Delaying blooming of orchids

  Q: Is there any way to hasten or delay flower spike elongation and subsequent flowering, so as to time flowering to coincide with orchid shows? A: Temperature and light control can be used. Higher temperatures hasten while lower temperatures retard flowering. Many people try to hold plants by lowering greenhouse temperatures without shading, and this does not work well. Sun light/heat developed in the tissues hastens growth even at low thermometer readings.