How to Propagate Vanda Orchids: A Detailed Guide to Keiki Propagation
There are many varieties of Vanda orchids, making them an important family among epiphytic orchids. Cultivating Vanda orchids by hand is not difficult, and since Vanda orchids are extremely tenacious, propagating them is not difficult either. Vanda orchids can be propagated by hand using the keiki propagation method. Let me give you a brief introduction.
Vanda orchid
Vanda orchids can be propagated by keikis. In late autumn, the Vanda orchid grows keikis at the leaf axils. When a keiki grows to 5-7.5 cm, use a sharp, sterilized knife to cut the keiki from the mother plant and plant it in a pot filled with osmundine (tree fern fiber). It can later be transplanted to a larger pot. Remember that the cut must be coated with fungicide to prevent infection by pathogens. In addition, when a plant cultivated for many years reaches over 1 m in height, the top shoot about 30-46 cm long can be cut off, and both cut surfaces disinfected with fungicide, then planted in a pot and kept moist.
Vanda Orchid Propagation Methods and Vanda Orchid Pest and Disease Control
Vanda is the collective name for plants in the orchid family genus Vanda, with about 50 original species and a very rich variety of hybrids. It is native to India, Malaysia, the Philippines and other places. Chinese experts translated it as "Wandai," probably meaning that it has strong vitality and can be passed down from generation to generation forever. Its ornamental value is very high, and it is a flower that can be enjoyed all year round. Let us take a look at how to grow Vanda orchids!
Vanda Orchid Growth Habits
Vanda orchids are afraid of cold but not heat, and afraid of waterlogging but not drought. In summer, temperatures as high as 35°C have little effect on their growth, and when cultivating them there is no need to use much potting medium. Many flower farms in Thailand grow Vanda orchids very extensively; they often nail wooden strips into small square frames, put in a few pieces of charcoal, broken brick or coconut husk, and the plants can continue to grow. Some even use just a nylon rope to tie up the plant and hang it in a shade house or under a tree, looking like "hanging cured ducks," and by regularly sprinkling water and spraying fertilizer on it, it can still grow leaves and bloom.
Vanda Orchid Propagation Methods
Vanda orchids can be propagated by keikis. In late autumn, the Vanda orchid grows keikis at the leaf axils. When a keiki grows to 5-7.5 cm, use a sharp, sterilized knife to cut the keiki from the mother plant and plant it in a pot filled with osmundine (tree fern fiber). It can later be transplanted to a larger pot. Remember that the cut must be coated with fungicide to prevent infection by pathogens. In addition, when a plant cultivated for many years reaches over 1 m in height, the top shoot about 30-46 cm long can be cut off, and both cut surfaces disinfected with fungicide, then planted in a pot and kept moist.
Vanda Orchid Pest and Disease Control
1. Phytophthora rot
[Symptoms] It can occur in all four seasons, but is most severe during the plum rain season when overwatering or poor ventilation occurs, and seedlings that have just come out of the flask are especially vulnerable. Infected areas produce brown lesions that expand rapidly under high temperature and humidity, eventually becoming dark brown spots; leaves drop, stems rot, and the plant dies.
[Control] (1) Avoid excessive moisture, improve ventilation and air circulation, and ensure sufficient light. (2) Avoid using too much nitrogen fertilizer, which reduces plant vigor and causes spindly growth. (3) Spray with 1/800 Duojunqing or 1/1000 Haoshengling solution. (4) Coat the cut wounds of diseased plants with Dasheng powder, then place in a dry location and do not water for one week, which can stop the spread of the disease.
2. Anthracnose
[Symptoms] Plants are susceptible when planted too densely, with poor ventilation, water imbalance, or wounded cuts. In the early stage of infection, brown sunken spots appear on the leaves, which later expand into circular or irregular lesions; in severe cases, the center of the lesion becomes necrotic.
[Control] (1) Do not plant too densely; increase light, and ensure good drainage and ventilation. (2) Grow strong seedlings, and do not frequently move plants, to avoid wounds and infection. (3) Cut off diseased leaves, and coat the wounds with 1/500 Dasheng-45 solution or 1/800 Wanjunqing. (4) Spray once a week with 1/1000 thiophanate-methyl or carbendazim solution.
3. Soft rot
[Symptoms] This disease is more likely to occur in spring and summer with high temperature and humidity, poor ventilation, and excessive nitrogen fertilizer. In the early stage, bacteria invade the leaves or crown and produce water-soaked lesions that expand rapidly and contain much water; in the later stage, a foul odor develops, diseased leaves turn yellow and drop, and the whole plant soft-rots and dies. The disease spreads extremely quickly and must be controlled as soon as possible.
[Control] (1) Improve growing conditions, increase ventilation, and lower temperature and humidity. (2) Cut off infected parts, coat with antibiotic powder, and do not water for one week, which can stop the spread of the disease. (3) Use 1000x streptomycin solution, or 500x lime sulfur mixture or Bordeaux mixture, spraying once a week.
4. Leaf blight
[Symptoms] Small black spots appear at the leaf tips and gradually expand into irregular lesions. The margins of the lesions become dark brown, while the center is light grayish-brown. In severe cases, they spread over the entire leaf, which finally withers and drops.
[Control] (1) Cut off diseased leaves, and spray with 500x Dasheng-45 or 1000x Haoshengling. (2) For infected plants, avoid rain or temporarily stop watering to prevent the disease from worsening. (3) Spray once daily with 500x Dasheng-45 as a preventive measure.
5. Southern blight
[Symptoms] Vanda orchids are relatively prone to this disease. In the early stage, the base of the pseudobulb turns black and rots, and white mycelium gradually develops on the lesions; the diseased plant gradually withers and dies.
[Control] (1) Cut off the pseudobulbs with lesions and burn them together with the pot and potting medium. (2) Spray once a week with 500x Dasheng-45 solution or 1000x carbendazim solution.
Vanda Orchid Vanda Vanda Orchid Guide: How to Grow Vanda Orchids / How to Propagate Vanda Orchids
Vanda Orchid ProfileVanda Orchid Vanda
Vanda Orchid Growing Methods and Precautions, Introduction to Vanda Orchids
Vanda is the collective name for plants in the orchid family genus Vanda, scientific name Vanda (originally Sanskrit from the India region, meaning an orchid hanging on a tree trunk), and is a strong member of the tropical orchid family. In Chinese it is transliterated as "Wandai." It belongs to the orchid family genus Vanda, which contains about 50 original species and a very rich variety of hybrids, making it one of the most important ornamental flowers. Most plants in this genus are epiphytic, though some are lithophytic or terrestrial orchids, distributed in India, the Himalayas, Southeast Asia, Indonesia, the Philippines, New Guinea, southern China and northern Australia.
In 1981, Singapore selected Vanda Miss Joaquim as its national flower. Vanda is a strong member of the tropical orchid family. Its scientific name VANDA was originally Sanskrit from the India region, meaning an orchid hanging on a tree trunk. Some also believe that the word itself simply means "orchid" in India. Either way, from this genus name it can be inferred that Vanda orchids were first discovered in India. Plants in the genus Vanda number about 60-80 species, widely distributed in China, India, Malaysia, the Philippines, Hawaii in the United States, as well as New Guinea and Australia. Chinese experts translated it as "Wandai," probably because it has strong vitality and can be passed down from generation to generation forever.
Vanda orchids are a major group among tropical orchids. Singaporeans are especially familiar with this orchid; the famous Vanda variety Vanda Miss Joaquim is the national flower of this beautiful tropical country.
Vanda Orchid Morphological Characteristics
Its plant grows upright, without pseudobulbs, and its leaves grow alternately on both sides of a single stem, like a set of ribs on a human chest. Some long-stemmed varieties can also branch or climb. The leaves are strap-shaped, thick and fleshy, with the midrib sunken like a groove, forming a "V" shape, and can withstand strong light and drought without easily withering. Its aerial roots are thick and long, some like chopsticks, emerging from between the leaves on the stem. Any vigorously growing plant has many white roots, like Santa Claus's beard, hanging down in bundles. The more white roots it has, the more abundantly it blooms.
In Thailand and Singapore, almost every leaf axil of a Vanda orchid can produce a flower spike and bloom, with each plant able to produce 15-20 flower spikes. Vanda orchids grown in Japan generally can only produce 3-4 flower spikes, which may be closely related to the weather.
The flowering season of Vanda orchids is truly spectacular. The petals come in round, elongated and triangular shapes. The lip is fused with the column, and the lateral lobes and mid-lobe each spread out. The flowers are robust in shape, bold in posture, and gorgeous in color. Besides many single colors, there are also bicolor flowers covered with spots or reticulations.
Vanda Orchid Ecological Habits
Vanda orchids are native to Malaysia and the US states of Florida and the Hawaiian Islands. To date, about seventy original species have been discovered, and there are more than a thousand artificially bred hybrids, making them an important family among epiphytic orchids. Two original species have been found on Hainan Island, China: one is Vanda coerulea and the other is Vanda concolor, mostly epiphytic on trees in primary forests.
Vanda Orchid Cultivation Techniques
1. Light: The general Vanda varieties mentioned above need relatively strong light. In local high-temperature seasons, 40-50% shade netting should be used for shading, and in winter shading is not even needed.
2. Temperature: Vanda orchids cultivated in Xishuangbanna all prefer high-temperature environments. The most suitable temperature is 20-30°C. Because there is no frost there all year round, Vanda orchids can bloom normally in any season.
3. Water and moisture: The two Vanda varieties mentioned above are both typical tropical epiphytic plants, and daily management must ensure sufficient water and air humidity. In the rainy season, vigorous growth can be maintained by natural conditions alone. In the dry season, artificial sprinkling must be used to keep air humidity at around 80%.
4. Fertilizing: Vanda orchids require more fertilizer than other tropical orchids, so during the peak growing period, diluted fertilizer can be applied once every 7-10 days. The best fertilizer has a nitrogen, phosphorus and potassium ratio of 10:10:5.
5. Potting medium: Since Vanda orchid roots are aerial roots, any well-drained medium is suitable, such as osmundine (tree fern fiber), broken bricks, charcoal, coarse gravel and so on; whether used alone or mixed, they are all good potting media. In addition to the medium, the pot itself must also be quite particular. Among pots of various materials, wooden slatted baskets and clay pots are preferred, and drilling a few more holes in the pot is even better for drainage and air circulation. Besides wooden slatted baskets and clay pots, Vanda orchids can also grow well on tree fern boards or tree trunks. No matter which method is used for cultivation, remember that the potting medium must have very good drainage and aeration.
6. Repotting: Vanda orchids should not be repotted frequently. Unless they are troubled by pests or diseases, they should be repotted only once every 3 years at minimum. In spring, Vanda orchids are about to enter their vigorous growing period, making it a good time to repot. For Vanda orchids grown for many years, their root system clings tightly to the inner wall of the pot, so if a clay pot was used, it is best to break the pot before repotting, to avoid damaging the roots when removing the plant.
7. Propagation: Vanda orchids can be propagated by keikis. In late autumn, the Vanda orchid grows keikis at the leaf axils. When a keiki grows to 5-7.5 cm, use a sharp, sterilized knife to cut the keiki from the mother plant and plant it in a pot filled with osmundine (tree fern fiber). It can later be transplanted to a larger pot. Remember that the cut must be coated with fungicide to prevent infection by pathogens. In addition, when a plant cultivated for many years reaches over 1 m in height, the top shoot about 30-46 cm long can be cut off, and both cut surfaces disinfected with fungicide, then planted in a pot and kept moist.
8. Pest and disease control: The tough leaves are the main reason Vanda orchids are not easily afflicted by pests and diseases. Apart from snails and slugs, the common pests generally rarely appear on robust Vanda plants. However, when water remains on the leaves for too long, or when infected by a virus, dark markings or patches often appear and gradually rot. If the condition is mild, the affected area can be cut away; if the rot has spread too extensively, the entire orchid must be discarded to avoid infecting other orchid plants.
Vanda Orchid Disease Control: Phytophthora rot
Symptoms: It can occur in all four seasons, but is most severe during the plum rain season when overwatering or poor ventilation occurs, and seedlings that have just come out of the flask are especially vulnerable. Infected areas produce brown lesions that expand rapidly under high temperature and humidity, eventually becoming dark brown spots; leaves drop, stems rot, and the plant dies.
Control methods:
(1) Avoid excessive moisture, improve ventilation and air circulation, and ensure sufficient light
(2) Avoid using too much nitrogen fertilizer, which reduces plant vigor and causes spindly growth
(3) Spray with 1/800 Duojunqing or 1/1000 Haoshengling solution
(4) Coat the cut wounds of diseased plants with Dasheng powder, then place in a dry location and do not water for one week, which can stop the spread of the disease.
Anthracnose
Symptoms: Plants are susceptible when planted too densely, with poor ventilation, water imbalance, or wounded cuts. In the early stage of infection, brown sunken spots appear on the leaves, which later expand
into circular or irregular lesions; in severe cases, the center of the lesion becomes necrotic.
Control methods:
(1) Do not plant too densely. Increase light; drainage and ventilation must be good
(2) Grow strong seedlings, and do not frequently move plants, to avoid wounds and infection
(3) Cut off diseased leaves, and coat the wounds with 1/500 Dasheng-45 solution or 1/800 Wanjunqing
(4) Spray once a week with 1/1000 thiophanate-methyl or carbendazim solution
Soft rot
Symptoms: This disease is more likely to occur in spring and summer with high temperature and humidity, poor ventilation, and excessive nitrogen fertilizer. In the early stage, bacteria invade the leaves or crown and produce water-soaked lesions that expand rapidly and contain much water; in the later stage, a foul odor develops, diseased leaves turn yellow and drop, and the whole plant soft-rots and dies. The disease spreads extremely quickly and must be controlled as soon as possible.
Control methods:
(1) Improve growing conditions, increase ventilation, and lower temperature and humidity
(2) Cut off infected parts, coat with antibiotic powder, and do not water for one week, which can stop the spread of the disease
(3) Use 1000x streptomycin solution, or 500x lime sulfur mixture or Bordeaux mixture, spraying once a week
Leaf blight
Symptoms: Small black spots appear at the leaf tips and gradually expand into irregular lesions. The margins of the lesions become dark brown, while the center is light grayish-brown. In severe cases, they spread over the entire leaf, which finally withers and drops.
Control methods:
(1) Cut off diseased leaves, and spray with 500x Dasheng-45 or 1000x Haoshengling
(2) For infected plants, avoid rain or temporarily stop watering to prevent the disease from worsening
(3) Spray once daily with 500x Dasheng-45 as a preventive measure
Southern blight
Symptoms: Cymbidium orchids are relatively prone to this disease. In the early stage, the base of the pseudobulb turns black and rots, and white mycelium gradually develops on the lesions; the diseased plant gradually withers and dies.
Control methods:
(1) Cut off the pseudobulbs with lesions and burn them together with the pot and potting medium
(2) Spray once a week with 500x Dasheng-45 solution or 1000x carbendazim solution.
Vanda Orchid Distribution Range
India, Malaysia, the Philippines, southern China and northern Australia
Vanda Orchid Cultural Background and Honors
In 1981, Singapore selected Vanda Miss Joaquim as its national flower. Vanda Miss Joaquim is also called Hu Ji Hua, a transliteration of the word Orchid from the Minnan dialect of Fujian. Vanda Miss Joaquim is a type of orchid. It has the following graceful characteristics. Its appearance is clear, elegant and dignified, standing out from the crowd, yet revealing modesty, symbolizing the temperament of the people of Singapore. It has a beautiful lip and five sepals; the lip spreads out in four directions, symbolizing the equality of Singapore's four major ethnic groups and the four languages of Malay, English, Chinese and Tamil. The column in the center of the flower combines male and female, symbolizing the root of happiness. The flower is supported by the opposing lobes below, symbolizing harmony, sharing hardships and honors together. Behind the lip there is a pouch-shaped spur containing sweet nectar, symbolizing a place where wealth converges and gathers. If you lift the pollen cap on the column, inside there are two pollinia, like two "golden eyes," symbolizing foresight and vision. Its stem climbs upward, symbolizing upward development and prosperity. When one of its flowers fades, another blooms, symbolizing the lifeblood of Singapore's nation and people, flowing on endlessly. Singaporeans, who possess boundless confidence and hope, love orchids, and especially favor Vanda Miss Joaquim, also because under the harshest conditions it can still bloom beautifully, symbolizing the nation's spirit of hard work, endurance and brave struggle.
Vanda Orchid National Flower and City Flower
In 1981, Singapore selected Vanda Miss Joaquim as its national flower
Vanda Orchid Flower Language
Vanda Miss Joaquim is also called Hu Ji Hua, a transliteration of the word Orchid from the Minnan dialect of Fujian. Vanda Miss Joaquim is a type of orchid. It has the following graceful characteristics.
Vanda tricolor (original species)
Vanda tricolor (original species)
Its appearance is clear, elegant and dignified, standing out from the crowd, yet revealing modesty, symbolizing the temperament of the people of Singapore.
It has a beautiful lip and five sepals; the lip spreads out in four directions, symbolizing the equality of Singapore's four major ethnic groups and the four languages of Malay, English, Chinese and Tamil.
The column in the center of the flower combines male and female, symbolizing the root of happiness.
The flower is supported by the opposing lobes below, symbolizing harmony, sharing hardships and honors together.
Behind the lip there is a pouch-shaped spur containing sweet nectar, symbolizing a place where wealth converges and gathers.
If you lift the pollen cap on the column, inside there are two pollinia, like two "golden eyes," symbolizing foresight and vision.
Its stem climbs upward, symbolizing upward development and prosperity. When one of its flowers fades, another blooms, symbolizing the lifeblood of Singapore's nation and people, flowing on endlessly, with boundless confidence and hope.
Singaporeans love orchids, and especially favor Vanda Miss Joaquim, also because under the harshest conditions it can still bloom beautifully. It symbolizes the nation's spirit of hard work, endurance and brave struggle.
Vanda orchids come in a wide range of flower colors, from yellow, red and purple to blue. Their sepals are well developed, especially the two lateral sepals, which are larger and are the most eye-catching part of the entire flower, while the petals are smaller and the lip is even smaller. The flower shapes of Vanda orchids are also diverse; some are recurved and twisted, while others are round and flat. Their flowering period is very long, and often a single flower can remain open for several weeks, and as long as conditions are suitable, they can roughly bloom year-round. The flowers of many varieties are also fragrant. On a flower spike, a Vanda orchid has at least a dozen flowers, opening in sequence from bottom to top. Besides the flowers, the leaves and roots of Vanda orchids are also very distinctive. The leaves are club-shaped, fleshy and juicy, growing on both sides of the upright stem, and the beautiful flower spikes grow out from the leaf axils; there is also another type with strap-shaped leaves. Vanda orchids are typical epiphytic orchids, and their thick, cylindrical aerial roots continuously grow from the stem and must have direct contact with the air.
A species of the genus Hymenocallis
A species of the genus Hymenocallis
Compared with other orchids, Vanda orchids should be considered relatively fond of light. After the plant matures, if there is enough light, it can bloom 2-3 times a year. At the same time, Vanda orchids have strong drought resistance and a relatively undemanding nature, making them a type of orchid that is relatively easy to cultivate in tropical regions.
Since the middle of the last century, Vanda orchids have become popular around the world. Wherever there are relatively warm regions, they can be seen. Orchid enthusiasts around the world have also bred a large number of Vanda varieties. Besides interspecific hybrids within the genus Vanda, there are also many intergeneric hybrids with orchids of other genera.
Vanda orchids are afraid of cold but not heat, and afraid of waterlogging but not drought. In summer, temperatures as high as 35°C have little effect on their growth. And when cultivating them there is no need to use much potting medium. Many flower farms in Thailand grow Vanda orchids very extensively; they often nail wooden strips into small square frames, put in a few pieces of charcoal, broken brick or coconut husk, and the plants can continue to grow. Some even use just a nylon rope to tie up the plant and hang it in a shade house or under a tree, looking like "hanging cured ducks," and by regularly sprinkling water and spraying fertilizer on it, it can still grow leaves and bloom. This characteristic of enduring hardship and striving endlessly is difficult for many pampered famous flowers to match.
Vanda Orchid Pictures