Nov 20 2008
Orchids Girdle the World
Of the incredible array of flowering plants on our earth, orchids easily exercise the most fascination. Not only are they lovely, but their life stories often have a bit of mystery and wonder clinging to them. Although distributed widely, many can only be found in isolated or exotic locations–impenetrable rain forests, the sides of volcanoes, mucky swamps, as examples.
Beginning in earnest in the nineteenth century, orchid enthusiasts have devoted years and whole lifetimes to ferreting out as well as cultivating new varieties of these flowering delights. Although most orchids are gotten these days from growers that specialize in breeding the plants, many of them being produced through hybridizing, it is helpful to understand something of their origins in nature.
Orchids are herbacious plants of which tens of thousands of species are known, with more still being discovered. They exhibit a startling range of color and form, which has contributed greatly to public interest. Master gardeners often delight in growing a wide range of orchids to demonstrate their mastery of the arts of cultivation.
Orchids grow in practically every part of the earth — the exceptions being the deserts and the polar regions. About 85% of species occur in tropical or subtropical regions, but this leaves a huge number that may be found in much cooler zones. In some parts of the Himalayan region, orchids make up the most abundant family of plants.
By far the greatest number of orchids occur in three large tropical belts:
- Tropical Africa (including islands to the east in the Indian Ocean). These largely belong to the genera (families) Angnecum, Bulbophyllum and Disa. Orchids from here have not been as widely cultivated as ones originating from the other tropical zones, but Africa nevertheless boats many species of interest.
- Tropical Asia. This region, which covers Indonesia and other islands, along with mainland Southeast Asia, is particularly rich in orchid genera. Typical of the region are the large genera Dendrobium, Eria and Bulbophyllum and many smaller ones as well.
- Tropical America. This region embraces Mexico, Central America and the tropical parts of South America. Isolated from other parts of the world for eons, this region has an especially large number of endemic genera of orchids, many of which include hundreds of species. Among the large indigenous genera are Epidendrum, Pleurothallis and Oncidium; many smaller genera found here also contribute more than their share to orchids that have found favor among cultivators the world over.
The temperate zones of the southern hemisphere also furnish many orchids, though not nearly so abundantly as do the tropics. In southern Africa the Disa and Calanthe genera furnish a few species judged valuable to cultivation. Australia has a number of genera in common with the tropical Asia. Southernmost South America boasts many temperate-zone orchids, but they are unfortunately overshadowed by those
from the much larger tropical part of thecontinent.
in the norhern hemisphere’s temperate areas, we should take note of the United States, particularly the New England/norhteastern region, as well as Canada. There you will find some 20 native genera, whose members grow particularly in swamps and other moist grounds. The most famous of these are the Cypripediuins or Lady Slippers.
Europe also has many native orchids, but undoubtedly the most famous and showy is the Bee Orchid (Ophrys apifera). The Bee Orchid grows on dry or semi-dry turf, often in open areas within woodlands. Bee Orchids are common near the Mediterranean coast of Europe, and grows (albeit less abundantly) as far north as Germany and the UK.
Orchids differ greatly in how easily they may be cultivated, although by and large they are not the difficult plants that common wisdom would have it. The most complete guide to modern orchid care, in the opinion of many, is Orchid Care Expert by Nigel Howard, which is available to be downloaded online. Mr. Howard’s ebook is a thorough course, helpful for beginners and more experienced cultivators alike. Also, be sure to visit the Orchid Secrets web site, which has an ever-growing library of postings on all facets of orchid cultivation.














