The slipper orchids are not likely to be confused with any others; with the exception of a single species, all the members of the subfamily Cypripedioideae have the lip or labellum modified into a pouch, an inflated bag-shaped organ. If you can imagine a dainty foot nestled in this pouch, you'll comprehend these orchids' charming … Continue reading The Slipper Orchids.
Easy culture and a lavish show of long-lasting flowers have made cymbidiums favorites with gardeners and commercial cut-flower growers alike. Standard cymbidium hybrids produce multiple 3- to 4-foot flower spikes from February to early May (some as early as Christmas), and each spike may contain as many as thirty 4- to 5-inch flowers. The flowers … Continue reading Cymbidiums Orchids.
The dendrobium tribe includes only four genera, three of which are not widely grown. The fourth, Dendrobium, more than compensates with its enormous number of species; estimates range from 900 to 1,400 or even more. Natives grow from India, China, and Japan through Indonesia to Australia, New Zealand, and the islands of the Pacific. These … Continue reading Dendrobium Orchids.
This widely available and easily grown group of orchids contains some of the showiest flowers in the family. It includes not only the familiar Cattleya but also the very similar Laelia and the highly variable Epidendrum and Encyclia. Lesser known in their own right, but valuable as parents in a complex assemblage of hybrids, are … Continue reading The Cattleya Alliance Orchids.
The plants described below belong to a sub-tribe known as the Oncidiinae. They grow naturally in the tropical and sub-tropical Americas and the Caribbean, mainly as epiphytes. There are a confusing number of genera and hundreds of species. Some sections interbreed freely in cultivation and there are a large number of intergeneric names. The taxonomists … Continue reading The Oncidium Alliance Orchids.
Propagating orchids by division, through offshoots, or by raising seedlings is easily within the realm of most home growers. The method you choose depends on the type of orchid and on how much time you want to devote to the process. Dividing Orchids The easiest method of creating new orchids is by division. When you … Continue reading Propagation Of Orchids.
Orchids are supposed to do best if the water is slightly on the acidic side, with a pH of about 6.5. However, they have been grown successfully in alkaline water with a pH of 7.5. Most municipal water supplies will present no problems, but there are exceptions. Water high in calcium and magnesium salts can … Continue reading Watering And Feeding Orchids.
Any plant grown in poor conditions can fall victim to insects or disease, and orchids are no exception. However, when their basic needs are met orchids are unusually tough and trouble free. Your greatest asset in handling plant problems will be a sharp eye for anything that seems abnormal. If you do discover a problem … Continue reading When Orchids Need Help Pests And Diseases.
Light is another critical factor in growing and inducing orchid plants to bloom. In fact, lack of adequate light is the chief reason for an orchid's failure to bloom. On the other hand, too much of a good thing is a problem, as well - for instance, when it results in sunburn. And although some … Continue reading Light For Orchids.
Orchids enjoy the same temperatures that we do 70° to 80°F (21° to 27°C) during the day, with a drop of 10° to 15°F (5° to 9°C) at night. As you see catalogs you will encounter the terms warm-growing, cool-growing, and intermediate. These all refer to a species' minimum winter nighttime temperatures - that is, … Continue reading Temperature, Humidity, Ventilation for Orchids.