Orchid Odontoglossum Care

The Odontoglossum (pronounced oh-don-toh-GLOS-sum) orchid’s natural habitat is in the South American Andes and Colombia. These high-altitude orchids flourish where cool temperatures prevail year round. Odontoglossums are known for their striking sprays of flowers and pleasant fragrance. The blooms have ruffled, lacy sepals and petals.

Odontoglossum Light
Light should be fairly bright. The leaves should be bright green as opposed to dark green or reddish green. Reddish green indicates too much light. Dark green indicates not enough light. They may succeed at an east window or a shaded south window.

Odontoglossum Temperature
These orchids enjoy intermediate temperatures. Day temperature ranges of 75 to 80 F during the day, and 55 to 60 F at night are best.

Odontoglossum Water
They should become moderately dry between waterings. The potting medium should just begin to dry before watering. As with other orchids from high-rainfall areas, they are particularly sensitive to poor-quality or softened water.

Odontoglossum Humidity
They enjoy moist air. Coupled with moving air, humidity should ideally be 55 to 75 percent. In the home, set the plants on trays above moist pebbles, with the pots resting above the water.

Odontoglossum Feeding
Fertilize regularly with a dilute solution of one quarter strength while plants are actively growing. It’s important to flush with clear water once a month.

Odontoglossum Potting
Repot your orchid at least every two years. A fine-grade potting medium with excellent drainage is suggested. Ideally the plants should be repotted immediately after flowering.