Phalaenopsis

• Many “just add water” orchids sold in food and variety stores are Phalaenopsis. They are also known as moth orchids because of their rounded, wing-shaped petals. Moth orchids flower several times a year under the best growing conditions. Their main season for flowering is late winter through spring. Budded stems bloom within one to two weeks and last up to 12 weeks.
  
  

Dendrobium

• The orchid genus Dendrobium has many species, all evergreen with tall, thin stems called pseudobulbs. Their hardy, multiple flower spikes produce flowers that last eight to 10 weeks. Dendrobiums need a lot of light but not direct sun to produce blooms. They thrive indoors in humid conditions when the daytime temperature is between 65 and 75 degree Fahrenheit. Dendrobiums develop from bud to bloom within two weeks in optimum conditions.
  
  

Cymbidium

• Just add water to Cymbidium orchids and they will bloom for several months. Each Cymbidium flower spike produces up to 20 single blooms. They prefer moist conditions during spring and summer and less water during winter. Cymbidiums bloom best when grown in full light but not direct sun. Many home gardeners grow them outdoors under tall tree canopies. Their bloom period is January to mid-March.
  
  

Bloom Tips

• All orchid species bloom longer when a few easy rules are followed. Do not water more frequently when the plant is in bloom and do not mist the flowers directly. Wet blossoms are susceptible to fungal disease. Place the orchid away from direct sunlight and direct drafts from the air conditioner or heater. Dry air wilts orchid flowers. Use a tray of pebbles under the pots to create a humid growing environment.