Disa is a genus of beautiful plants with rather triangular flowers, often red. They require VERY different care than other types of orchids, so it's easy to kill them if you don't know what you're doing. In particular, they like it wet and should never dry out. The best-known Disa is Disa uniflora, which in South Africa is known as the Pride of Table Mountain.
Most orchids are not heavy feeders. Many orchids bloom year after year with no fertilizer at all. During active growth, when new leaves are being produced, you may fertilize every other time you water at half the strength recommended on the fertilizer package. However, it's important to deliver water without fertilizer at least once a month to flush excess fertilizer salts from the bark mix and avoid fertilizer burn to the roots.
This site is compiled from photos collected from growers or photo collectors around the world and I rely on them to try to be sure of their identification. As we all know, however, many plants are mislabeled and growers and collectors can't know all species in every genera, so please be advised that to the best of our knowledge the following ID's are correct. I have hundreds of references, thanks to you all, but often many species are not well represented. I try to the best of my capabilities to be correct but as the adage goes, "To err is human". Many species herewith have been scrutinized by taxonomic experts and will be correct, but this may not be true of all the species described. If you have any questions as to the veracity of any species described in this encyclopedia please e-mail me, Jay Pfahl, at firstname.lastname@example.org and we will work at correcting the mistake. As to the text it is compiled by culling notes from hundreds of books and publications [See Bibliography and source books] but it too can be wrong in part due to my mistake or in the often conflicting reports on various orchids.
Orchids have been used in traditional medicine in an effort to treat many diseases and ailments. They have been used as a source of herbal remedies in China since 2800 BC. Gastrodia elata is one of the three orchids listed in the earliest known Chinese Materia Medica (Shennon bencaojing) (c. 100 AD). Theophrastus mentions orchids in his Enquiry into Plants (372–286 BC).
Brassia, Comparettia, Odontoglossum, Polystachya, Cochleanthes, Tolumnia, Trichocentrum, Brassavola, Psychilis CC Image courtesy of Arne and Bent Larsen on Wikimedia Commons | Catasetum, Cymbidium CC Image courtesy of http://www.larsen-twins.dk on Wikimedia Commons | Cephalanthera CC Image courtesy of Sramey on Wikimedia Commons | Dichaea, Eulophia, Galeandra, Trichoglottis, Lycaste, Stanhopea, Caularthron, Domingoa, Prosthechea, Dendrobium, Goodyera, Stenorrhynchos, Pogonia, Gymnadenia CC Image courtesy of Orchi on Wikimedia Commons | Dipodium CC Image courtesy of David Lochlin on Flickr | Ionopsis, Campylocentrum CC Image courtesy of Maarten Sepp on Flickr | Macradenia CC Image courtesy of Maarten Sepp on Flickr | Koellensteinia CC Image courtesy of Alex Popovkin on Flickr | Leochilus CC Image courtesy of Marcos Antonio Campacci on Wikimedia Commons | Oeceoclades, Bletia, Chiloschista, Renanthera, Miltonia, Brachionidium, Cattleya, Lepanthopsis, Nidema, Scaphyglottis, Trichosalpinx, Eria, Coelogyne, Cyclopogon, Eltroplectris, Eurystyles, Platythelys, Prescottia, Psilochilus, Triphora, Paphiopedilum CC Image courtesy of Dalton Holland Baptista on Wikimedia Commons | Oncidium CC Image courtesy of Calyponte on Wikimedia Commons | Arethusa CC Image courtesy of Chris Meloche on Wikimedia Commons | Arundina CC Image courtesy of Kevin Gepford on Wikimedia Commons | Calopogon CC Image courtesy of Bob Peterson on Flickr | Cleisostoma CC Image courtesy of Earth100 on Wikimedia Commons | Dendrophylax CC Image courtesy of Mick Fournier on Wikimedia Commons and CC Image courtesy of Big Cypress National Preserve on Flickr | Micropera, Crepidium CC Image courtesy of Raabbustamante on Wikimedia Commons | Taeniophyllum CC Image courtesy of Airborne Pilot on Flickr | Corallorhiza CC Image courtesy of Wsiegmund on Wikimedia Commons | Maxillaria CC Image courtesy of Walter on Flickr | Govenia CC Image courtesy of Sanfelipe on Wikimedia Commons | Isochilus CC Image courtesy of Patricia Harding on Wikimedia Commons | Lepanthes CC Image courtesy of Quimbaya on Flickr | Elleanthus CC Image courtesy of Philipp Weigell on Wikimedia Commons | Pleurothallis CC Image courtesy of KENPEI on Wikimedia Commons | Restrepiella CC Image courtesy of Moises Béhar on Wikimedia Commons | Bulbophyllum CC Image courtesy of Montrealais on Wikimedia Commons Calanthe CC Image courtesy of Qwert1234 on Wikimedia Commons | Phaius CC Image courtesy of Hectonichus on Wikimedia Commons | Spathoglottis CC Image courtesy of Vaikoovery on Wikimedia Commons | Calypso CC Image courtesy of Walter Siegmund on Wikimedia Commons | Tipularia CC Image courtesy of TheAlphaWolf on Wikimedia Commons | Malaxis CC Image courtesy of Bernd Haynold on Wikimedia Commons | Oberonia CC Image courtesy of Ramesh Meda on Flickr | Anoectochilus CC Image courtesy of Badlydrawnboy22 on Wikimedia Commons | Cranichis CC Image courtesy of Americo Docha Neto on Wikimedia Commons | Mesadenus, Pteroglossaspis CC Image courtesy of NC Orchid on Flickr | Pelexia CC Image courtesy of Elena Gaillard on Wikimedia Commons Ponthieva CC Image courtesy of Jose Lacruz on Wikimedia Commons | Spiranthes CC Image courtesy of Eric in SF on Wikimedia Commons | Zeuxine CC Image courtesy of Panoso on Wikimedia Commons Dactylorhiza CC Image courtesy of Uoaei1 on Wikimedia Commons | Habenaria CC Image courtesy of J.M.Garg on Wikimedia Commons | Ophrys, Pseudorchis CC Image courtesy of Hans Hillewaert on Wikimedia Commons | Orchis CC Image courtesy of Algirdas on Wikimedia Commons | Platanthera CC Image courtesy of Enrico Blasutto on Wikimedia Commons | Epipactis CC Image courtesy of Dcrjsr on Wikimedia Commons | Listera CC Image courtesy of Superior National Forest on Flickr | Sobralia CC Image courtesy of João Medeiros on Flickr | Broughtonia CC Image courtesy of Walter on Flickr Masdevallia CC Image courtesy of trixty on Flickr | Isotria CC Image courtesy of Jason Hollinger on Flickr | Flickingeria CC Image courtesy of Averater on Wikimedia Commons | Cleistesiopsis CC Image courtesy of Charly Lewisw on Wikimedia Commons | Cypripedium montanum CC Image courtesy of Bill Bouton on Flickr | Cypripedium reginae CC Image courtesy of Orchi on Wikimedia Commons | Disperis, Encyclia, Epidendrum, Vanilla planifolia, Vanilla barbellata CC Image courtesy of Malcolm Manners on Flickr | Govenia CC Image courtesy of Bosque Village on Flickr | Psychopsis CC Image courtesy of LadyDragonflyCC – >;< on Flickr | Aplectrum CC Image courtesy of Fritz Flohr Reynolds on Flickr
The second type, the nobile Dendrobium, grow warm in the summer but require a cool winter period to induce flowering. They need to experience temperatures in the 40s to low 50s (preferably) in order to flower well. They are distinguished by bearing fuzzy, flat, round, colorful flowers close to stem, which cover most of the stem on a well-flowered plant.
With the different orchid types, it’s important to master the watering schedule. If orchids have pseudobulbs, enlarged stem structures that store water, the orchid potting mix can dry out a little between waterings. Orchid species that are epiphytes and grow on tree branches in tropical rainforests are adapted to receiving water from daily rain, so they need more frequent watering.
If only there was an easy guide or a little water fairy that hovered over your plants and told you exactly when and how much to water. Unfortunately, there isn't. But I think this is one of the satisfying reasons we grow orchids. It's all about balance and instinct—and plenty of patience. Here are some of the factors you need to consider when developing a watering schedule:
Some saprophytic orchid species of the group Gastrodia produce potato-like tubers and were consumed as food by native peoples in Australia and can be successfully cultivated, notably Gastrodia sesamoides. Wild stands of these plants can still be found in the same areas as early aboriginal settlements, such as Ku-ring-gai Chase National Park in Australia. Aboriginal peoples located the plants in habitat by observing where bandicoots had scratched in search of the tubers after detecting the plants underground by scent.[Note 1]
Catasetum orchids, along with the other members of the Catasetum alliance, have big, thick pseudobulbs with an attractive fan of thin leaves along their length. The flowers can be very showy, but are unisexual, so that male and female flowers look different. Lighting affects which kind appears. They need a dry rest after flowering when the leaves drop.
Sympodial: Sympodial orchids have a front (the newest growth) and a back (the oldest growth). The plant produces a series of adjacent shoots, which grow to a certain size, bloom and then stop growing and are replaced. Sympodial orchids grow laterally rather than vertically, following the surface of their support. The growth continues by development of new leads, with their own leaves and roots, sprouting from or next to those of the previous year, as in Cattleya. While a new lead is developing, the rhizome may start its growth again from a so-called 'eye', an undeveloped bud, thereby branching. Sympodial orchids may have visible pseudobulbs joined by a rhizome, which creeps along the top or just beneath the soil.
Also called the Butterfly orchid, this flower comes in striking colors such as burgundy and bright gold, and it can even have foliage that is green and speckled. It blooms for several months, needs only moderate light conditions, and it is very easy to grow and maintain. It is a truly stunning plant that can complement your garden regardless of what else is planted there.
Grammatophyllum speciosum is the largest type of orchid and grows up to three meters in height. The world’s most expensive orchid, Shenzhen Nongke, sold for $200,000 at an auction in 2005 and is named after the university that developed it for eight years. Sri Lanka’s Kadupul flower, on the other hand, is considered the most priceless because it blooms just once a year in the night and withers before dawn breaks.
This type of orchid has over 200 species and has a star-shaped appearance. Most of them have small- to medium-sized blooms and come in colors such as yellow, white, or light green, although most of them are white. The flower has a wonderful fragrance, needs even amounts of water, and prefers temperatures between 60 and 80 degrees Fahrenheit, mainly because they are not a bulb plant and therefore cannot store water. They also look beautiful in hanging baskets and pots.
Always water early in the day so that your orchids dry out by nighttime. The proper frequency of watering will depend on the climatic conditions where you live. In general, water once a week during the winter and twice a week when the weather turns warm and dry. The size of your orchid container also helps determine how often you need to water, regardless of climate conditions. Typically, a 6-inch pot needs water every 7 days and a 4-inch pot needs water every 5 to 6 days.
ust about anything, it sounds simple until you get down to actually doing it, and then the questions come up. But once you get the hang of it, you’ll realize how easy it is. Here are some specifics for successful ice cube watering.One thing you may find yourself wondering is “what size should the ice cubes be?” since there seems to be no standard size or shape anymore. It should melt down to about a ¼ cup of water. As long as that’s the case, the size of the cube is only an issue if it’s crushed ice. The point of using ice cubes is that they melt slowly – releasing the water in a slow drip. So you don’t want to use anything that will melt quickly.
Once you develop more than a passing interest in orchids, you will quickly notice how diverse this exotic plant family is. Encompassing genera that yield both the vanilla you love to bake with and fragrances you love to wear, each flower has unique characteristics and care requirements. Compare your plants to some of the most commonly cultivated orchids to help you determine what type of orchid you are growing.
The orchid plant is also unique in its morphology (form or structure). We can begin with the leaves and work our way down to the roots. The leaves of many orchids in cultivation are unique in that they are specifically designed for water conservation (as is true for almost every orchid structure). They have a heavy waxy leaf coating and specialized stomata (openings through which the leaf “breathes”) that help to prevent water loss during transpiration (the act of the plant “breathing”). Many orchids utilize CAM photosynthesis as well, which in essence means that the plants collect materials during the day and then process them at night.
Orchids are an incredibly unique and fascinating group of plants. Many people can identify a Phalaenopsis (moth orchid) or Cattleya (the old corsage orchids), but the question often is asked, “What makes an orchid an orchid?” Orchids have some morphological (physical) traits that make them stand out from other plant families. In orchids, many of their floral parts come in groups of three. There are three sepals, which are the outer petals; these are what you see when you look at an unopened bud. There are also three petals, but in orchids one of the petals has been specialized into a labellum, or lip. This is usually the bottommost petal, and it helps to attract the pollinator to the reproductive organ. In orchids the reproductive organ, known as the column, combines both the male and female parts in one structure.