Cymbidiums are the easiest of all orchids to grow and they are the most widely grown orchid. Most species come from Asia and their range extends from India and Japan down to Australia which has three species. The majority grow at high altitudes whee warm humid days and cool nights are common in Summer with cool, dry conditions during Winter. There are over 50 species and thousands of hybrids available.
Cymbidiums require some shade (30%-50%) in Summer but only enough to stop leaf burn. this can b provided by shadecloth over the roof of a shadehouse or broken shade from trees in the garden. During Winter they need no shade at all. In order to flower well, they like a lot of light, preferably morning sunshine, broken shade during midday and some follow up sun in the afternoon. However, too much sun will yellow the leaves. Too little will result in lush green growth but no flower.
Cymbidiums need to be watered heaviest during the hot Summer months, sometimes twice a day in order to keep the media moist. During Winter watering can be tapered off and once a week would be sufficient, except when windy conditions dry the medium out.
Cook, Terry. “Growing Orchids in Australia” Golden Press, Silverwater, NSW, 1989
Cymbidiums for Beginners by NEMOS
How I Repot Cymbidiums by Brian Milligan
Cymbidium Species – Month by Month by Stephen Early
Staking Cymbidiums by Alan Hope
Married to Cymbidiums by John Kenter
Striking Back-Bulbs: Advice for Novice Growers by Brian Milligan
Companion Plants for Cymbidiums by Brian Milligan