The Oncidium 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.

Orchid Glossary.

Alba: White form of a flower. AM: Award of Merit. Second-highest flower-quality award given by the American Orchid Society for plants scoring 79.5-89.4 award points. An AM can also be bestowed by the Royal Horticultural Society (AM/RHS). Angraecoid: Term used to describe the monopodial orchids that belong to the African Angraeceum orchids and their close relatives. AOS: American Orchid … Continue reading Orchid Glossary.

Propagation Of 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.

Re-Potting Orchids.

There are two main reasons to re-pot your orchids, and they often, but not always, occur at the same time. First, an orchid needs to be re-potted if it gets too big for its pot. Orchids can have an extensive root system inside the pot and the potting mix, but they also typically have roots … Continue reading Re-Potting Orchids.

Watering And Feeding 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.

When Orchids Need Help Pests And Diseases.

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.

Temperature, Humidity, Ventilation 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.

Problems With Orchids.

Orchids can live in cultivation for many years - up to 100 years in established botanical gardens, for example. But for this to happen, growing conditions have to be right and any problems must be dealt with promptly. Over time, orchids progress in peaks and valleys. They advance toward a peak, producing optimum growth and … Continue reading Problems With Orchids.