Temperature and Air Circulation = Healthy Orchids

These tips will help your orchid bloom and avoid bacterial leaf spots.

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temperature and air circulation - orchids

Providing the correct air temperature and air circulation will go a long way in providing an environment where your orchids will flourish. In return, your orchids will reward you with their remarkable flowers. 

Temperature and Air Circulation

An orchid’s needs are simple, once you know what they are. A well-cared-for orchid will not just survive, it will thrive, producing the unparalleled flowers that orchid lovers, like us, adore. Recreating their natural habitat in both temperature and air circulation are essential components that if supplied will help you to grow healthy orchids.

The-right-temperature-and-a-gentle-breeze-now-my-orchids-are-looking-better-than-ever - what temperature do orchids like - find out here

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What Temperature Do Orchids Like?

Since ideal temperatures vary for orchids, my advice is to buy house happy orchids. A house happy orchid prefers the same temperatures you do. If you are cold, it’s too cold for a house happy orchid. Likewise, if you’re hot, so is a house happy orchid.  Before purchasing a new orchid variety, ask the seller if the orchid prefers a temperature between 65 and 85 degrees Fahrenheit.   There are many orchids out there specifically suited for greenhouse growers, so it’s always a good idea to ask.  The Phalaenopsis, sold in most grocery stores, is an example of a house happy orchid, but there are many others. I call these orchids that thrive in a home environment house happy orchids

To learn more about Phalaenopsis orchids, check out my EBOOK: WHAT TO DO WITH YOUR GROCERY STORE ORCHID 

Orchid Grower Types

Before purchasing an orchid, always find out what type of grower it is. If you know what type of grower your orchid is, there will be no guesswork–you will know with certainty what temperature your orchids like.

Cool growers can be hard to care for as indoor as the cool temperatures are often difficult to achieve indoors. For optimum results, go for warm to intermediate growers.

In reality, it is hard to overestimate the importance of providing an orchid with the right temperatures so they can rebloom. Some orchid experts say that providing the right temperatures is even more important than light is to reblooming.

Warm growers: between 65° – 85° F / 18.3° – 24.9° C. Give these orchids winter lows between 65° – 70° F / 18° – 21° C and summer highs around 85° F / 29° C.

Intermediate growers: between 60º – 80°F / 15.5° – 26.6° C. For optimum care provide these orchids with winter lows of 58°-62° F / 14.4° – 16.6° C and summer highs in low 80s° F / 27° C.

Cool growers: between 50° – 75° F / 10° – 23.9° C. These orchids prefer winter lows around 50° F / 10°C and summer highs around 80°F / 26.6° C.

Here are a few examples or orchid according to their temperature preferences:

  • Brassia: intermediate to warm
  • Cymbidium: warm to cool. Most varieties need cool temperatures in the winter.
  • Dendrobium: cool to warm. Check with the vendor before buying as cool growers are difficult for most of us to keep cool enough.
  • Laelia: warm to intermediate
  • Leptotes: intermediate
  • Miltonia: intermediate to warm
  • Oncidium: intermediate to warm (though some are cool growers)
  • Paphiopedilum: warm to intermediate.
  • Phalaenopsis: warm (with intermediate temperatures in the fall).
purple-phalaenopsis - what temperature do orchids like

Learn about 6 easy orchids that will thrive in your home.


Air Circulation

Orchids do best with gentle air circulation.  Orchid roots need airflow.  But there are other reasons as well.  Since house orchids are placed near windows, a fan will help to regulate extreme hot or cold temperatures that orchids may experience through windows.

Another function of air movement is that it helps to prevent bacterial infections on orchid leaves. If you notice black spots on your orchid’s leaves, your orchid likely has a bacterial infection. Don’t panic; it’s not the end of the world. These black spots are quite common. Keep in mind that using a fan will help to prevent these spots. To learn more about treating orchid pests and disease click here.

The good news is that fans are inexpensive and will help prevent moisture buildup that could cause mold and bacterial infections. Simply turn the fan to the lowest setting, positioned several feet away from your orchids. Point so the fan is not blowing directly at the orchids.  If you are lucky enough to have a ceiling fan with a low setting, that is ideal, but any small fan, like the one pictured below, will do the job.


Use a fan to create airflow and prevent infection.

Orchids Are Just Good Companions

Bringing the outdoors indoors rejuvenates the soul and helps us to have a better outlook on life. Living with orchids does just that.  A comfortable temperature, a gentle breeze, and orchids go far in creating home!

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  1. Anonymous says:

    Dear Anna, Two days ago I bought a Cymbidium orchid and just noticed that the leaves are turning yellow. Thanks for your help.

    1. Anna says:

      If you just purchased the Cymbidium, the leaves were likely yellowing before you got the orchid. Follow this link to know what to do about yellowing leaves:
      Yellowing Leaves: What to Do About It

  2. Anonymous says:

    my orchid has one more flower and behind there are little buds emerging.. yet the leaf are getting yellow – Do I need to transplant ( because I was new -I now know that when I first replanted I didn’t know how to cut back the old roots. what to do now. thank you. I am very grateful.


    1. Anna says:

      Yellow leaves are a common problem faced by many orchid growers. Here is a link with an article that will help you know what action to take to treat your orchid’s yellowing leaves:


      All my best,

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START HERE to Learn More About Caring for Orchids

Find Out What I Wish I Knew When I First Started Caring for Orchids