Light: Bright, indirect light is best to avoid leaf scorch but to promote flowering.

Temperature: Generally speaking, Oncidium hybrids can tolerate a wide range of temperatures between 45 & 95 degrees depending on the hybrid. However, they prefer cool nights and warm days. Windows, corner rooms, porches or greenhouses that fluctuate more in temperatures are great places to keep these guys.

• 60-65 F Nights

• 75-85 F Days

Humidity: Orchids always perform better the higher you can keep humidity; but Oncidiums can tolerate lower humidity in more temperate conditions.

Low humidity causes leaf tip burn and curled leaves.

Water: Because Oncidiums have a psuedobulb (a bulb that occurs above ground), they can tolerate more drydown. Allow bark to dry thoroughly between watering. You may notice the bulbs becoming wrinkly if kept too dry.

Repotting: Oncidiums spread laterally with their pseudobulbs and often require dividing and repotting (2-3 years). To learn more about potting them up, read the American Orchid Society’s care guide by clicking here.

Fertilizing: Use a 30-10-10 formulation applied every other watering when not in flower. This will support leafy growth.

Orchids have a vast and complicated taxonomy that most cannot dissect. To learn more about orchid care, join your local orchid society chapter!

Kansas Orchid Society

(Listed in order of commonality…)

• Lack of flowers from low light

• Root/Crown decay caused by overwatering

• Fungus gnats

• Algae build-up on potting mix

• Mealy Bugs

Are orchids pet safe?

Yes; generally speaking, most orchids are regarded safe for pets. Phalaenopsis have specifically been tested as safe.

How do I get Oncidiums to rebloom?

Oncidiums flower when they are enjoying environmental conditions that are suited to them and when a new growth/pseudobulb matures. Light levels, temperatures and fertilizing regularly lead into blooms.