Laelia rubescens

Oct 2012 082 copy

Laelia rubescens is a species of orchid native to Mexico and Central America.

Laelia rubescens also called as The Rosy Tinted Laelia, Amalia acuminate, Amalia peduncularis, Amalia rubescens, Bletia acuminata, Bletia peduncularis, Bletia rubescens, Bletia violacea, Cattleya acuminata, Cattleya pendicularis, Cattleya rubescens, Laelia acuminata, Laelia inconspicua, Laelia peduncularis, Laelia pubescens, Laelia rubescens f. peduncularis, Laelia violacea, is a species of the genus Laelia.
Light:
Laelia rubescens loves bright sunlight and is able to tolerate the direct morning and evening sun, however the orchid should be protected from direct sunlight otherwise the plant can get sunburn. Bright sunlight is one of the main prerequisites for the flowering of this type of orchids, and if it is insufficient, the plant will simply not bloom.

Temperature:

The most recommended temperature is: Day temperature at 21-24 ° C (maximum 32 ° C); Night temperature at 10-15 ° C; To successfully grow at home, it is necessary that the night temperature of the content is always 6 ° C lower than the daytime temperature.
Humidity:

Laelia needs relatively high humidity, not less than 60-80%. Too dry air negatively affects the growth and development of the plant: its growth is inhibited and the orchid begins to stagnate and turn yellow.
Watering:

During the period of new growth, the plant needs frequent and abundant watering. Excess water during watering should flow freely out of the pot, as the stagnation of water both inside the pot and in its pan can very quickly lead to decay of the roots and the lower part of the plant. The substrate between waterings must necessarily dry well, as the roots of the orchid are very sensitive to waterlogging. In the hot summer period, daily spraying of the outer part of the plant is recommended, this will increase the humidity around the orchid and help it to survive the heat better.
Rest period:

Immediately after flowering, Laelia rubescens undergoes a short period of rest, which is expressed by the fact that the orchid contains somewhat colder than usual, does not fertilize and rarely is watered. The ideal temperature for this period is 10-13 ° C. From watering should be discarded completely and produce it only if the pseudobulbs of the plant begin to wrinkle strongly. Growing on the blocks of orchids is recommended to spray no more than once in 10 days. With the advent of new shoots, the rest period ends: the watering of the orchid resumes in the usual volume, and the overall temperature of the contents rises.

reference

https://travaldo.blogspot.com/2018/05/laelia-rubescens-orchid-plant-care-and-culture.html

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Arundina graminifolia

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Arundina graminifolia ( Bamboo Orchid  or Bird orchid )

Arundina graminifolia is a species of orchid and the sole accepted species of the genus Arundina.it is terrestrial orchid with reedy stems, forming large clumps growing to a height of 70 cm to 2 m. This orchid blooms in summer and autumn. plant resembles a bamboo. A very good bloomer.

Humidity

They like good humidity 70%.

Temperature

24-29 C  during the day with a drop of 6-8C at night.

Light

They like high light (2000-3000 foot candles) similar to the low end of Cattleya lighting.

Fertilizer

“weakly, weekly”. orchid fertilizers are used with mixing with water.

watering

Bamboo orchids should be watered as they approach dryness. Don’t let them dry out too  Much.

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Masdevallia

Masdevallia orchids are commonly referred to as “Kite Orchids” because of their blooms that are almost triangular-shaped and have what looks like kite-tails coming off of each sepal.Name came after the Spanish doctor and botanist Dr. Jose MASDEVALL. The Masdevallia come from the mountain areas in South and Central America.

Flower spikes can grow to be only a few inches to more than a foot in length and each produces only one bloom. Masdevallia orchid’s blooms come in many different colors ranging from pale to almost neon as well as many different patterns such as spotted or striped.

Masdevallia kimballiana                    Masdevallia Bellavallia

Water Requirements

Masdevallia orchids should be watered frequently because they do not have pseudobulbs for water storage and they tend to dry out fairly quickly. You want to make sure to not let your Masdevallia orchid dry out completely but at the same time be sure not to overwater either.Recommend to cultivate them in sphagnum moss which stays humid for a long time without making the roots rot. The plants should not have wet feet. The quality of the water is very important.recommend rain water or any water that contains little amounts of salt.

Light Requirements

Masdevallias need low to medium light intensity in order to thrive. If your Masdevallia orchid is receiving too much light, it will cause the leaves to turn yellow in color, and too little light will cause the leaves to become a very dark green color and the leaves will become elongated. The best place to grow your Masdevallia orchid indoors is on a shaded windowsill, out of direct sunlight. If you only have a brightly lit windowsill, you might be best putting your Masdevallia in the middle of the room away from the bright light.

Temperature Requirements

Able to tolerate higher temperatures if the humidity evens out the heat. You can use humidity trays or spray regularly every morning and evening.

Temperature requirements for Masdevallia orchids are in the cool to intermediate range. ideal daytime temperatures to grow your Masdevallia orchid is between 16°C to 23°C and night temperatures are between 12.8°C to 15.6°C. A 10° to 15° difference between day and night temperatures is ideal, especially during the hot summer months. If your Masdevallia orchid becomes too hot, this could slow down its growth and ultimately kill your orchid.

Humidity Requirements

Masdevallia orchids require very high humidity levels. The higher the temperature is the higher the humidity should be. A level of 60-80 percent is recommended.

Fertilizer Requirements

Masdevallia orchids should be fertilized with a diluted solution once a week when the orchid is in active growth. When the orchid is not in active growth, fertilizing one time a month is sufficient.

Potting Requirements

Masdevallias should be repotted once every year or two or once the potting medium no longer drains properly or the plant outgrows its pot. You will want to repot after the orchids flowers have bloomed which is typically in the winter or early spring. Masdevallia orchids have fine roots so fine-grade potting media is recommended such as fir bark or tree fern fiber. After repotting your Masdevallia you should maintain a high humidity level in your orchids growing area and also keep the medium a little on the drier side until you see new roots beginning to form.

Source

http://www.orchidsmadeeasy.com/masdevallia/

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Aerangis( Aergs)

A genus of the Orchid family The name of this genus has been derived from the Greek words ‘aer’ (air) and ‘angos’ (urn). Approximately 50 species in this genus are known mostly from tropical Africa, but also from the Comoro Islands, Madagascar and Sri Lanka.

Currently the Kew World Checklist of Selected Plant Families recognizes 51 species, 2 natural hybrids, and 4 varieties. it distributed Africa and its adjacent islands, including Madagascar.

Aerangis’ descendants from intergeneric hybridization have been registered.

It is not difficult to grow any of the species of Aerangis, but the plants are easily lost if growing conditions change adversely. The species from higher elevations need cooler conditions than those that occur at or near sea level, and those from near the Equator generally require warmer conditions and higher humidity than those that are found much further south at the same elevation. Details of the habitat, where known, often give an indication of the best way to manage the environment for plants in cultivation.

Aerangis biloba

This small sized, hot to warm growing, epiphytic species is from tropical western and central Africa in forests, woodland and thickets, as well as on cultivated crops such as coffee and cocoa to elevations of 700 meters with short to 8″ long stems

Aerangis biloba is a species of epiphytic orchid.It is native to tropical West Africa (Benin, Ghana, Guinea-Bissau, Guinea, Ivory Coast, Liberia, Nigeria, Senegal, Sierra Leone, Togo, Central African Republic, Cameroon, Gabon).

Aerangis biloba comes from Western Africa (Senegal east to Cameroon). It grows as an epiphyte in woodland thickets, forest canopies, village trees and often found in plantation crops. It can be found at sea level to about 2,300 feet (700 meters).
The stem of A. biloba can reach up to 8 inches (20cm) and is woody. Its leaves are a dark green when the plant is younger and eventually develop black dots as the plant matures (there can be a small amount of black dots on younger plants). Leaves are usually about 6 1/2 inches long (18cm) and will be 1 1/8 (3cm) to 2 1/4 (6cm) wide. The leaves are bilobed at the ends with a slight sinus between the ends.
Inflorescence’s are pendent and will vary in length, 4 – 16 inches (10 – 40cm) long. They will produce 8 – 20 flowers that alternate down the length of the inflorescence. They are white and often have a pink or brown tint in the pedicel and the spur which is about 2 inches (5 – 6cm) long.

The Two-lobed Aerangis blooms in the spring and summer

AERANGIS BILOBA CARE AND CULTURE
Light:- Plants in cultivation need well-shaded conditions, similar to those enjoyed by Phalaenopsis species and hybrids. The level of light should be quite low and the light should be filtered or dispersed. Plants should not be exposed to direct sunlight, especially at noon. Strong air movement should be ensured all the time.

Temperature:- This species is a thermophilic plant. The average day temperature during the whole year is 26-31 ° C, night 17-20 ° C, which gives a daily amplitude of 7-12 ° C.

Humidity:-  Plants needs a humidity level of 80-85% from late spring to autumn, and falling to 70-75% during the winter and early spring. It is easily dehydrated so you will need to pay close attention to the moisture factor. If the plants are kept too dry, there is the danger that they will dry out too much and lose their leaves. If they are sprayed with too much cold water or too frequently, the plants will suffer, lose their leaves and die. Careful management of both the plants and their environment is the key to long-lived plants and the reward of many flowers every year.

Potting:- All of the plants will grow well in pots of medium suitable for most other epiphytes; those with finer roots need a smaller particle size and moister conditions than those with thicker roots. All species grow well as mounted plants, firmly attached to a piece of bark or cork. Mounted plants should be suspended in deep shade, usually in high humidity. The flowers are naturally and elegantly displayed when the plants are grown like this.

Watering:- The Two-lobed Aerangis should be watered frequently during periods of intensive growth, but the outflow of water must be facilitated and the substrate around the roots should always be loose, with easy access of air.

Fertilizer:- Plants need only weak liquid fertilizer, during the growing season when new roots and new leaves are produced.. Before fertilizing the plant it is necessary to wet it: in this way the roots are not burned by the fertilizer.

Rest period:- In winter, watering should be reduced to a certain extent, especially in the case of plants cultivated in darker conditions of a short day typical of higher latitudes, but they should not be completely deprived of water. Fertilization should be reduced or eliminated until new growths appear in the spring and more abundant watering starts.

source :-

http://angraecums.blogspot.com/2012/04/aerangis-biloba.html
https://travaldo.blogspot.com/2017/12/aerangis-biloba-care-and-cluture.html

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Orchid Flower colour changes

Colour changes are usually attributable to temperature but can also be from changes in light as well. Temperature can affect on flower colour. Flowers that were red in previous years were faded in this year

Look at the leaves on your two photos.the leaves in the right photo appear to be a much deeper green than the left one. To me that would suggest the plant received a good deal less light last year, thus the darker more vibrant bloom colour. The more light this year probably washed out some of the colour.

Source

https://www.houzz.com/discussions/2909388/orchid-flower-color

https://www.repotme.com/orchid-care/Orchid-Flowers-Different-Colors.html

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Ludisia discolor (jewel Orchids)

Ludisia discolor with out Flower and with flower

Ludisia is a genus of orchids that contains just one species, Ludisia discolor, commonly referred to as jewel orchid. They are terrestrial orchids. in their natural setting would be found growing on the forest floor. They are known for their foliage, which is often velvety deep maroon with red veins that run parallel to the centre of the leaf.it’s prized for its foliage rather than its flowers.

If you thought growing orchids was all about the flowers, you’ve never taken a look at the Ludisia, or jewel orchid. This unusual orchid variety breaks all the rules: it grows in the soil, not in the air; it likes shade instead of a sunny environment; and it gets its good looks from the velvety leaves it produces instead of its flowers.

It’s simple and easy to care for and does still produce lovely white little flowers to give it a little more interest than other houseplants which are only grown for their foliage. Flowers are white with twisting yellow columns. Individual flowers are small but grow in clusters on upright stalks. Flowers in cultivation last a month or more.

They need high humidity and warm temperatures with low to medium light, and they tolerate extremely low light levels.

Light

Out in it’s natural habitat the Jewel Orchid is found growing down low, often in pretty shady places. For the best results try to replicate this in your home or office by avoiding placing it in direct sunlight. North facing rooms are perfect, but any other facing aspect is fine providing you can shield the leaves from any harsh sunlight that filters through during the day. Do not mistake this as a plant which likes darkness though, gloom needs to be avoided as much as direct sunlight.

Watering

Slightly damp conditions are what the Jewel Orchid wants for the majority of the time. It does not like to have bone dry or soaking wet soil, leave its roots sitting in water and it will rapidly die. If you are using a more porous potting mix you will need to water more often than if using standard potting soil.

Temperature

Warm tropical temperatures above fifty degrees. Obviously, jewel orchids are not tolerant to frost.

Soil

A good orchid potting mix should be fine, ideally one that contains some organic material. Make sure the drainage is good to avoid rotting their roots.

Fertiliser

These plants should regularly be fed with a balanced, diluted fertiliser like a 20-20-20. If their blooms are insufficient, up their feeding.

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Orchids from seeds?!

orchid seeds

Most plant seeds (except orchids) are relatively large and contain a large store of nutrition to sustain the young plant before leaves and roots develop enough to continue sustaining the growing plant. With this type of seed, you just pop the seed in soil, water, and watch the seedling grow. Most garden plant seeds are of this type. Examples are beans, peas, corn, tomatoes and lettuce, all the seeds you see at your local nursery or produce store. Orchid seed, in comparison, is tiny, like dust. It contains virtually no nutrition to grow the new plant, so orchid seed relies on a mycorrhizal fungus to provide the nutrition required to grow. Until the young orchid grows leaves and roots large enough to support the orchid, the fungus must provide all the nutrition for the growing plant. Without this fungus, there is no possibility of the seed developing.

Now, back to how to grow your seed. If you just put your seed in a pot and water, it will not grow without the required fungus. Early orchid growers had little success growing orchids from seed due to this problem. They found to have any chance of success, the seed should be sown on the mother pot around the roots of the parent plant. Here, the potting media will be moist due to normal watering of the pot and will also contain suitable mycorrhizal fungus from the parent plant. Many species will grow using this method. Phaius, for example, grow extremely well using this method. A soon as the seedlings are of sufficient size, they should be moved into their own pot as the young plants will suffer from the competition from the parent plant. Many epiphytes will germinate using this method, so it may be worth a try with your pod.

The most reliable method is asymbiotic germination, or flasking. This method involves growing the seeds in a nutrient solution which provides the necessary nutrients for the growing plants. This avoids the necessity of the mycorrhizal fungus. The nutrient solution is mixed into agar, a gel, to provide mechanical support for the seedlings. Unfortunately, other organisms, like bacteria and fungus, also love growing in the nutrient solution and will overrun the seedling, just like weeds in our gardens, smothering and killing the seedlings. To prevent this, the agar media, flask and seed is sterilised ensuring that there is nothing in the flask to compete with the young seedlings.

Flasking is the method used commercially to grow orchid from seed. It has proven to be reliable, relatively cheap and simple. All seed can be reliably grown in flasks only requiring a change to the flask formulation for some difficult to grow species. There are many books describing flasking techniques in detail and many articles on the internet. Flasking can be done very simply at home using common household appliances and no special equipment. Media can be made using mostly household items from variety of formulas, or commercial mixtures are available at reasonable prices. Flasking is not out of reach of the home hobbyist with some of our own members producing many of their own flasks quiet successfully and reliably.

The question you now need to ask yourself is ‘Do I really want to grow from seed?’ You are looking at three to twelve months for the pod to ripen, one to four years of growing in the flask followed by one to ten years or more of growing the young orchid before you see your first flower if growing by flask. If growing symbiotically, you will still need 3 to 12 months for the pod to ripen, followed by two to 10 years of growing the orchid to achieve a flower. All up, you are looking at about 3 to 15 years, including years of watering, fertilising and repotting before you see a flower.

source

http://bos.org.au/Articles/Orchids%20From%20Seed.html
https://www.bewdleyorchids.com/seed-cultivation.html
http://everything-orchids.com/orchid-growing-faqs/can-i-grow-orchid-from-seed
http://www.aos.org/orchids/additional-resources/harvesting-times-of-orchid-seed-capsules.aspx

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Orchids in water culture

orchids in water culture

You can place your orchid in any container with enough room for roots to grow, but it is fun to use glass so you can observe the progress of the plant. The container doesn’t need to be very deep but high curved sides can help support the plant and keep it from flopping over. Many hydroponic orchid growers also use clay pebbles in the bottom to help support roots and rise the crown from the moisture to prevent rot. The medium might seem to be straightforward – water – but there are good and bad types. Some municipalities treat their water until it is laden with chemicals and can be quite toxic to plants. A better route is using rainwater, or distilled. It is important to use tepid water to avoid shocking the plant.

Some growers simply leave their orchid in the water all the time with weekly or biweekly water changes. Others swear by soaking the orchid for 2 days and then allowing it to dry for 5 days.

one could set up most orchids to grow in water as long as there was oxygen exchanged. For instance, if the water was re-circulated or had a splash fountain or a bubbler we believe we could grow totally in water– as long as we keep the plant above the water and the roots in the water.

sources

http://hoalacanh.com/blog/2016/03/16/water-culture/
http://www.rv-orchidworks.com/orchidtalk/general-orchid-culture/5493-orchid-water-culture.html
https://www.gardeningknowhow.com/ornamental/flowers/orchids/growing-orchids-in-water.htm

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Acriopsis (chandelier orchids)

Acriopsis liliifolia

Acriopsis liliifolia var liliifolia

The genus consists of 9 recognized species. The name ‘Acriopsis’ is derived because it resembles the shape of a locust.

They grow mainly in low, humid rainforests, sometimes ascending to medium altitudes. Their roots have specialised roots which grow from them up through the air and make branches which feed on litter and other debris.

Light Preference :
Semi-Shade (It is best grown under 70% light. )

Moderate shade and humidity as well as hot to warm conditions are required with a dry period when not growing and then ample water while in growth to have this epiphytic orchid bloom in the spring and summer on a basal

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Dyakia

Dyakia hendersoniana sp

Dyakia hendersoniana

A genus of orchids. It contains only one species, Dyakia hendersoniana

Dyakia is a genus of orchids. It contains only one species, Dyakia hendersoniana, endemic to the Island of Borneo.

Care

Light:- This plant prefers low to medium light. This plant also does well under artificial lights. Grow from 12 to 18 inches from fluorescent tubes.

Humidity:- 50% or higher is ideal. When growing on a slab, keep the humidity as high as possible.

Water:- This plant should be misted or watered every morning when growing on a slab. When growing in a pot, water as the mix approaches dryness

Flowering:-
This plant flowers in the spring to summer months. Each flower stem produces about 15 to 30 miniature salmon pink flowers.

Repotting:

Repot this plant once a year in a net or clay pot using New Zealand sphagnum moss. These can be slab mounted as well.When growing on a slab, repotting is not necessary unless the slab develops a salt like coating on it.

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