Orchids and their Care
These orchids originate from east Africa. There are both epiphitic and terrestrial Ansellias. The terrestrial species have tall cane like pseudo bulbs with 6 to 7 plicate leaves that give rise to a 20″ paniculate inflorescence with many flowers.
These plants should get a light till light shadowed and warm place. The soil should get dry between watering. The plants need less water and fertilizer after the pseudo bulbs have matured.
This is a large genus with about 1100 species. Our special interest goes to the cultured hybrids that flower in authumn. This has to do with their natural habitat: the warmer parts of Asia. These orchids are however in limited amounts also offered in spring.
Most of these orchids in cluture are white or pink. But there are also yellowish-green, green and yellow flowers.
For the consumer, this is an idial plant, available in sizes varying from small to average and large. It can be combined very well with other plants that do not need much water and it flowers for several months.
Special care should be take when watering these plants. Never give water when the plant is still wet. Usually, once per ten days will do. These warmth loving Dendrobiums should not be kept outside and inly in house with very much light.
Dendrobium nobile hybriden
Another group of Dendrobium originates from India and Himalaya. In th UK, these plants were very popular in the begin of the 20th century. This was mainly because of the work done on hybrids by the gardener of Sir Schroeder.
In the arly sixties, nurseries in Japan started to offer new hybrids. Good results were made because of the increased knowledge about auction and culture techniques. These new hybrids made Dendrobium popular with the consumers.
Nowadays, plants are offered in various sizes and in colors varying from white to dark pink. For the small flowering types, the flowering time is in authumn and spring in colors white and yellow.
These are beautifull plants to see. They flower a long time and do not need special care, only very much light. Between March and October, when the plants are growing, they should be fertilized.
In winter, the plants should be kept cool for at least 6 weeks. In this period, the plants should be kept moist, but not wet.
This is a small genus, closely related to Phalaenopsis and grown under the same conditions. There are many hybrids between Doritis and Phalaenopsis and if no specialist, it is difficult to see the difference between a Phalaenopsis and a Doritaenopsis.
Doritis is a nice small plant with a long stalk that carries several flowers.
One of the hybrids is Doricentrum, which originates from a hybrid with Ascocentrum.
This orchid owes its name to the shape of its flowers. It is sometimes called the octopus orchid. These are epiphytic orchids from tropical America. An adult bulb on a plant can flower all year round.
The plant needs plenty of light and temperatures of between 17 and 24 degrees Celsius. The soil should be kept moderately moist. It is sufficient to immerse the plant in lukewarm water once a week. During the growing period (March to September) the plant should be fed once a month. The plant needs repotting once every three years and special potting compost must be used.
These are epiphytic orchids from Asia. There are over 100 kinds of Miltonia with large differences in size, appearance and color. Some plants measure only a few centimeter and have only 1 or 2 flowers, while others measure over 2 meter and have hundreds of flowers. In this case the pseudobulbs reserve organs in the form of stems. The leaves are mainly oblong.
Some of these orchids are best grown in a cool glass house, while others should be kept in a warm glass house. This depends on their natural habitat. The plants prefer a light place, but should be protected from direct sunlight. The plants that drop their leaves periodically, need a dry resting period. Outside the resting period, the plants do not need much water, except when it is very warm in combination with low humidity. Apply lime-free water only. Fast growing plants need a bi-weekly dressing with orchid dressing. Other need a less frequent dressing or dressing with reduced concentration.
This plant is often callen Miltonia. Miltonia however is the name of another genus which originates from Brazil. Miltoniopsis comes from Colombia, from the high Andes mountains.
The laymans name for this plant is Violet Orchid.
It is a nice, attractive plant that flowers long. It is the whole year through available, with a peak in May-July.
If taken good care after, it sometimes flowers twice a year.
Never place it in the burning sun. The plant should however not be placed at a dark place.
Keep it moist, but not wet. And also do not expose it to higher temperatures.
The whole year through, it should be fed weekly with a little fertilizer.
Beware of draught. The plant should be sprinkled daily during summer and if the plant is kept in the living room, also in winter when the heating is on.
Many people are interested in orchids that originate from the American continent. The hybridization efforts of the last 20 years and newly found species stimulate that proces. Phragmipedium does not only differ from Paphiopedilum by its shape of flowers, but also by its stem, which is not hairy.
The genus contains about 25 species. Plants that are offered in shops are usually hybrids.
Phragmipedium can be grown as easy as Paphiopedilum. They only need more lime.
These orchids from tropical Asia and northern Australia have a central stem, which grows only at the top. This stem has 2 rows of leaves. The following Vanda plants are regularly offered: Ascocenda, Kagawara, Renancentrum, Aranthera, Bokchoonara, Vandofinetia, Aranda, Wilkinsara, Okaara, Darwinara, Opsisanda, Mokara, Rhynchovanda, Debruyneara. But there are more.
The plants that are grown in cluture do all need much licht and warmth. Light is very important. Vanda can even bear direct sun shine. But it is better to temper the sun shine a bit. That will prevent possible burning damage.
Humidity should be about 80 %.
The temperature should never drop below 15 oC and may raise at daytime to 27 oC with sufficient humidity.
The plants need a lot of fresh air during summer nights. And all species need much light. They like much water, which should be free of lime and appreciate regular dressing.
These dwarf orchids grow high in trees. They form short pseudobulbs with 1 or 2 leaves on it and a flower stalk that usually has 1 flower only. This genus has 14 species in Brazil.
These plants need a high humidity.
These south-Asian orchids grow at the ground. The plants form pseudobulb, from where some long folded leaves grow. A long flower stalk grows from the bottom of these pseudobulbs, at which appear 1 or more flowers that open one after the other. The plant may thus be flowering for several months.
The plants should be grown with temperatures between 20oC and 25oC. As soon as new leaves appear, they like full sun and a lot of water and fertilizer.