Each genus of orchid has different requirements for reblooming. Most commercial varieties are very simple to rebloom. Phalaenopsis, Zygopetalum and Odontoglossum require only slight changes in temperature to initiate blooming. Others, such as Oncidium and Dendrobium, bloom on mature new growth and require a change of fertilizer to a phosphorus-rich, blossom-booster formula, such as 20-20-20.

Knowledge of watering, temperature and fertilizer requirements for each genus is necessary for successful reblooming year after year. To successfully rebloom your plant, identify the type of orchids you have and see our "INDIVIDUAL ORCHID CARE" section for details.