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Fertilizer:

During the growing season, fertilize with a weak orchid fertilizer weekly (weakly weekly, as the growers say). Cut fertilizer back to once a month during the winter and flowering season. Some growers like to give the plant a boost of blooming fertilizer in September or October to provoke a flower spike.

Blooming:

Phalaenopsis typically bloom in the late winter or early spring. Their long-lasting flowers are held on arching branches and open successively. A single multi-branching flower spike can have more than 20 flowers. Individual phalaenopsis flowers can last for weeks. To induce a flower spike, the plant needs a few cooler nights, down to 55 degrees. The plants will not bloom well without this temperature contrast.

Potting and Media:

Phalaenopsis can be grown in most orchid potting media, including chunks of pine bark, clay aggregate pellets, charcoal, perlite, sphagnum moss, and styrofoam. They can also be grown in hanging baskets or mounted on slabs in a greenhouse-type environment. As with all epiphytic orchids, they should be planted in free-draining containers. Repot phalaenopsis in spring, after the bloom is done. Adult phalaenopsis can often go for two years or more before they need to be repotted.

Grower's Tips:

Phalaenopsis are generally very rewarding plants. They are not demanding and, in the right conditions, they will reward the grower with months of showy blooms. It is vitally important, however, that water never be allowed to rest in the growing tip of the plant . This will cause the new leaves to rot, and the plant will die. Thus, they should only be watered in the morning. As with all orchids, the higher the humidity and temperature, the greater the need for turbulent air flow to prevent rot, fungus, and diseases. Successful growth means finding the right balance between humidity, temperature, light and air flow.