Why Are Orchids Scentless?

Orchids can be influenced by various factors, including the influence of varieties, insufficient light, insufficient vernalization, lack of nutrition, and ambient temperature. Some orchids produce a sweet, floral scent, reminiscent of jasmine, vanilla, or honey, while others have a light, citrusy scent or more intense perfume.

In the wild, orchids’ scents help plants attract pollinators, with some genera having fragrances that mimic bees and wasps. For orchids that bloom in winter and spring, low temperatures affect the honeydew in the orchid, freezing it and preventing the release of fragrance. When the temperature is raised or adjusted, the aroma is released.

The warmth and humidity also play a role in orchids’ scents. Most scented orchids tend to be more scented in the warm, and higher humidity makes it easier for them to emit fragrances. However, many wild orchid species are naturally fragrant, and human artificial selection often minimizes the perfume to focus on the flowers.

Fragrance can only appear when pollinators are present in the orchid’s natural habitat. Orchids only give off scent when pollinators would normally be around in the orchid’s natural habitat. They have fragrances that range from spices like cinnamon and vanilla, to foods like chocolate and citrus, to fragrances mimicking other flowers.

In conclusion, orchids exhibit a fascinating range of scents, ranging from delightful to repulsive, which serve a purpose in the wild. However, not all orchids are fragrant, and their scents can be affected by environmental changes, stress from overwatering, underwatering, or sudden changes in temperature and humidity.


📹 9 reasons why Orchids don’t have a fragrance

Here is a topic that might not be discussed too often. Why some potentially fragrant orchids just refuse to smell of anything for us, …


Why are some orchids so stinky?

Wet foliage and high humidity in orchids can encourage the spread of fungal and bacterial diseases. Bacterial diseases do not respond to fungicides, making it crucial to know which disease you are dealing with. The most common bacterial disease in orchids produces a foul smell, similar to dead fish. Both bacterial and fungal diseases can spread quickly, and time is of the essence. To prevent fungal infections, use a clean cutting tool, cut off infected tissue, and treat the cut surface with a fungicide. Cinnamon, a common spice, is effective against fungal diseases and can be used to coat the cut surface.

The most common fungal and bacterial rots encountered in orchids include Black Rot, a fungal disease characterized by soft, rotted areas that begin on leaves or new growth and spread to rhizomes and roots. Infected areas are initially purplish brown, then turn black, and the outer margins of the infection site are yellowish.

Why are orchids so hard to keep alive?
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Why are orchids so hard to keep alive?

Orchids often face root rot, which can cause dropping leaves, lack of blooming, and unhealthy plant stalks. To address this issue, dig out potting material around the roots and look for black, mushy roots. If the roots are rotting, remove the orchid from its pot, tap off the potting material, trim off bad roots, and treat the remaining roots with fungicide. Allow the roots to dry before repotting.

If the leaves are turning yellow or dried out, it may be exposing the orchid to too much direct sunlight. Move the orchid to a cooler area with indirect sunlight. If the roots are too tightly tangled, it may indicate that the pot is not providing enough space for the orchid and may need repotting during its next dormancy cycle.

Do orchids feel pain?

Plants are devoid of nervous systems and brains, which are responsible for their inability to experience pain. This is also the reason why many nonhuman animals, including those we kill for food, are capable of experiencing pain. A deeper comprehension of this distinction may prompt a greater number of individuals to contemplate the pain experiences of animals when making dietary decisions.

Is it OK to sleep with orchids?

Orchids, such as the Moth Orchid, are non-parasitic plants that absorb water and nutrients from rain and air, making them ideal for the bedroom. They release oxygen through the night, making them a great gift. Houseplants have been proven to reduce street anxiety, improve air quality, and help improve sleep. Photosynthesis, the process by which plants absorb and emit carbon dioxide, is a key factor in promoting better sleep. Plants capture around 25 percent of all carbon dioxide emitted from fossil fuels, making them a valuable addition to any home.

What is unusual about orchids?

The orchid is the largest plant family in the world, comprising approximately 10% of all plant species. There are over 25, 000 wild species of orchid, with nearly 10 times the number of hybrid varieties known.

Why are orchids so strange?
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Why are orchids so strange?

Orchid flowers are monosymmetrical, mirroring each other and featuring fused female and male parts. They are known for their stealthy behavior and appearance. Tropical orchids often grow on tree trunks, using their roots to hold themselves on the bark. They can also grow in soil and on stones. Most tropical orchids are epiphytes, growing on trees, similar to Cattleya mossiae.

After the beginning of orchid growing in England, people began crossing different species to create hybrids with superior flowers or easier care. Over 100, 000 registered hybrids of orchids have become popular, with the possibilities for combinations being endless. Orchids are known for their beauty and stealthy behavior, making them a fascinating and fascinating subject to study.

Why can’t you touch orchids?

The oils produced by the human body can obstruct the pores of orchids, impeding their respiration and photosynthesis. Additionally, the presence of dirt and contaminants on the hands can also prove detrimental to orchids. To mitigate these risks, it is recommended to wash hands prior to handling orchids and utilize clean gloves when necessary. Furthermore, the use of clean gloves is recommended as an additional precautionary measure.

Do any orchids have a scent?

The olfactory properties of orchids are most pronounced in the morning, with the intensity of their fragrance diminishing in the afternoon. Some orchids emit a fragrance in the evening, with the strength of the scent varying considerably. The fragrances themselves range from faint to strong, with some being delicate and others sweet. The evaluation of orchids is based on a number of criteria, including the intensity of the fragrance, the distance over which it is perceived, the general appeal of the plant, and the complexity of the scent. The following species of orchid are particularly renowned for their fragrant qualities:

Why do flowers no longer have a scent?

Modern plant breeding has led to the loss of the scent of many popular flowers, such as roses and flowers, compared to Shakespeare’s familiar blooms. Natalia Dudareva, assistant professor of reproductive biology at Purdue University, has discovered new insights into the biology of floral scents, which could lead to sweeter-smelling roses and other benefits. Improving floral scent is a goal of the $20 billion per year horticulture industry and is crucial for agriculture, as nearly three-fourths of all crops depend on insect pollinators attracted by floral scents, with honey bees alone responsible for pollinating one-third of U. S. crops.

Why do orchids not smell?
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Why do orchids not smell?

Orchid fragrances vary in intensity and intensity, with some being mild and others intoxicating. Factors such as sunny days, high humidity, and air quality affect fragrances. Hybridizing fragrant orchids has become more popular, with moth orchids like Phalaenopsis and Cymbidiums being bred for their fragrances. For those who prefer strong fragrances, Rhynchostylis or Zygopetalum are good options. For beginners, Cattleya or Oncidium are recommended.

It’s important to note that not all orchids are fragrant, so it’s essential to try them before purchasing them. Hybridizing fragrant orchids has led to the development of miniature forms with pleasant fragrances, such as Cymbidium Golden Elf ‘Stardust’.

What flowers have the least smell?
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What flowers have the least smell?

A scent-free garden can be a perfect oasis for those sensitive to perfumes. There are many options to create a scent-free garden, including Papaver Wonderland Mix, Hosta Gravity Rocks, Anemone De Caen Sylphide, Dahlia Clyde’s Choice, Hibiscus Starry Starry Night, Lily Tiny Double You, and Gladiolus Nova Lux. Papaver Wonderland Mix is a fast-growing variety with strong stems that produces beautiful blooms in various colors. It is ideal for large areas or border planting and grows to 40 cm (16″) and is hardy to zone 2.

Hosta Gravity Rocks, a perennial with unique rippled foliage of vibrant chartreuse with jade green edges, is perfect for small gardens and balconies. It grows to 30 cm (12″) tall and thrives in partial to full shade areas, making it a great fit for darker areas. The flowers are unscented and hardy to zone 3.


📹 Orchid fragrance – Its purpose & why we all detect it differently

Today we talk about about Orchid fragrance, the different scents and why we can’t all detect the same things! ▽▽▽More info …


Why Are Orchids Scentless?
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6 comments

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  • Funny thing, the reason this article is posted so late is because I needed to re edit and reuplaod it. There was a word I used to describe what the pollinators of the Bulbos like in nature, which was not ok with the algorithm, so my vid was demonetized :))) so I had to re do it and use ‘milder’ words lolol but we all know what I meant 😛

  • Danny, I remember that long ago I was living with my family and we were in summer holidays at the cool mountain area in Rio de Janeiro, Brazil. I bought many orchids and they all had a light scent, many Cattleyas and Zygos, etc. They were around 20 plants and almost all in bloom. When we drove back to city, going down the mointains, the temperatures increased and they ALL started to smell so sugary, sweet and flowery that all my family got sick inside the car. And I didn’t allow the windows to be open because it was windy and it would destroy the flowers… All my family breathing through small window openings and finally my mom asked to stop the car to throw up… ;( I felt guilty, the windows were finally open and we just drove slower to protect the flowers, but it was a hell of a trip… hehehe…. Nowadays, I think I told you this before, there is one plant I highly recommend, the small Masdevallia glandulosa. The flowery and someway, chocolaty, vanilla scented small flowers can fill the room with their scent, but one of the few I held the pot into my nose because it was one of the most pleasant smells I had experienced in my life. Highly recommended…

  • I always wanted to have some of the Oncidium twinkles, because they are supposed to smell beautiful. Well, i hate the smell! When i smelled them in the hardware store, i almost threw up. My boyfriend on the other hand liked them quite a lot, but he didn’t like the flowers because they are so small 😀

  • Danny, we have a science show on TV here in Aus, called Catalyst and they did a special on pheromones… abc.net.au/catalyst/chemistryofattraction/ this is the link to the episode (CHEMISTRY OF ATTRACTION) but it does go into perfumes and why we can detect some and not others. You could just read the transcript as well. But your mention of not being able to smell a certain perfume just reminded of this.

  • Today I found my phal speciosa orange x voilecia indigo blue affected by false reddish spider mites and it’s a little too late I orchid fleck virus in same plant and other bellina x ambionensis and salu peoker affected by virus it’s very sad thanks Danny for sharing the getting rid of spider mites and your bellina encourages me not to throw the virused orchid. I hope my orchids will also recover like yours I’m very thankful for you and your articles now I know and I’m now gained knowledge that what is spider mites, differentiate from false spider mites, how it transmit the flecks virus, how it stuns the growth of orchid how it deplete the orchid, how to get rid of spider mites, how to get rid of virus, your battle wounds gave us shades to prevent loss from snail infestation to fleck virus. I’m very thankful for you. Suggest me anything to save my orchid the virus in initial state where bottom leaves pitted I can confirm this is orchid fleck virus each leaf has nearly 10 to 20 spots and discolouration and the spidermites are very clever even it hiding in the sheath which covers the nodes in the flower spikes we like long articles thank you for sharing your experience through articles. Make a update on virused orchids and talk more if possible In atleast qna articles

  • Hi Dani, Love your articles! I think I have watched almost all of them (including the “cringe-y” ones) and plan to continue to do so! But, this will likely be my only comment to you… Question/Video Request: Bifoliate Cattleyas I find that the bifoliate-cattleya-sensitivity-rule only applies to the genetically “bifoliate” catts as defined by the AOS. There is a wonderful article centered around these species which include the C. walkeriana (my fave catt species I call “eddie walker”!). The guarianthes were also included, I believe. I notice you refer to complex hybrids phenotypically exhibiting “bifoliate” growth, but don’t necessarily have the genetic background to be classified as such. I have many hybrids with two leaves and no sensitivity, but my C. Motte spot is a complex hybrid of all bifoliate parentage and it has some of the most sensitive roots in my collection. Could you make a article, keeping the AOS classification of bifoliate species in mind, of the different cattleyas in your collection? My eddie walker’s root tips often die back b/c efflorescence on my leca and my C. aclandiae is refuses to bloom… Finally, Iwanaga is a Japanese sir name and it is spelled the way it should be pronounced like it would be in any latin language. I’m confused why you would default to a Germanic pronunciation of a name in taxonomy.