Temperature + 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

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 temperature between 65 and 85 degrees Fahrenheit.   There are many orchid 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 likes.

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 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 vendor before buying as cool growers are difficult for most of us to keep cool enough.
  • Laelia: warm to intermediate
  • Leptotes: intermediate
  • Militonia: intermediate to warm
  • Oncidium: intermediate to warm (though some are cool growers)
  • Paphiopedilum: warm to intermediate.
  • Phalaenopsis: warm (with a intermediate temperatures in the fall).

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purple-phalaenopsis - what temperature do orchids like

Air Circulation

Orchids do best with gentle air circulation.  Orchid roots need air flow.  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.

Click on the link to learn more about the fan I use to grow orchids. It’s small and quiet and get the job done. I receive a commission if you purchase through this link.

This is the FAN I use to grow beautiful orchids

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’s likely have 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. 

Treating Orchid Pests and Disease

For your orchids' sake, I hope you won't ever need this info., but here it is anyway - just in case.


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.


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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temperature and air circulation - orchids

  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

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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