Home
Fact-checked

At WiseGEEK, we're committed to delivering accurate, trustworthy information. Our expert-authored content is rigorously fact-checked and sourced from credible authorities. Discover how we uphold the highest standards in providing you with reliable knowledge.

Learn more...

What are Citronella Candles?

Mary McMahon
Mary McMahon
Mary McMahon
Mary McMahon

Citronella candles are candles which are blended with essential oil from citronella, a grass native to Asia. Citronella oil is supposed to be an effective natural insect repellent, with citronella candles classically being used to keep insects like mosquitoes away from decks, campsites, and other outdoor locations. People who are considering these candles may want to be aware that they are only about 45% effective, according to studies conducted at the University of Ontario, so they should be combined with another repellent method for full protection from unwanted insect visitors.

The oil of the citronella grass has a strong lemony scent, explaining the name, and a bright yellow to brown color. In addition to being used in candles, citronella is also used in creams and other materials which can be applied topically, along with torches designed to cover a wide area. When using citronella topically, people should be aware that young children often experience skin reactions to citronella, and some adults may develop itching, rashes, or hives if they come into contact with citronella oil.

A citronella candle.
A citronella candle.

It is possible to find citronella pillars, tapers, and a variety of other shapes, along with specialty candles which can float in a pool or be enclosed in containers to reduce the risk of fire. Citronella candles are usually yellow in color, both because citronella is naturally yellow and because many companies dye their candles, and they have a strong citrus-like odor. As the candles burn, they release citronella oil, providing a deterrent to neighborhood insects.

A reaction to citronella oil may include hives.
A reaction to citronella oil may include hives.

For the candles to be effective, it is usually necessary to use a lot of them to surround an area. A single candle at a table might be enough to keep insects away from diners, but many people prefer to ring an area with citronella candles so that people can wander freely within the range of the candles. The further apart the candles are, the more likely insects are to slip through, and the further guests stray from the candles, the less they will be protected.

Citronella candles may be used as a cleaner alternative to insect repellent spray.
Citronella candles may be used as a cleaner alternative to insect repellent spray.

When purchasing citronella candles, you may want to think about how they are going to be used. Pillars tend to be well suited to camping, since they are sturdy, stable, and compact. Tapers can look more elegant, but they burn out more quickly and they are more likely to fall over. For fire safety, enclosed candles are very useful, but these candles may not provide as much coverage as exposed candles. As a fire-safe alternative to citronella candles, you can pour citronella oil into an essential oil diffuser and place the diffuser in a strategic outdoor location.

Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a WiseGEEK researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Learn more...
Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a WiseGEEK researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Learn more...

Discussion Comments

donasmrs

Rather than using one or two large citronella candles, it's definitely better to use numerous small candles around an area. It works much better that way.

The great part about repelling insects with citronella candles is that candles also create a beautiful ambiance. They look beautiful and do not bother guests. A candle can be placed in the middle of each table for example, so that guests can eat without having to deal with insects.

ZipLine

@fBoyle-- I highly recommend citronella candles for repelling insects. I use them all the time for outdoor events and they work very well. Some citronella candles are actually strong enough to repel insects on their own. It really depends on the amount of citronella oil in the candles. If you read customer reviews, you can easily find citronella candles that work well.

Citronella oil is not extremely cheap so I think it's safe to assume that very cheap candles do not contain a lot of citronella oil.

Sometimes I use these candles indoors as well because they smell very good.

fBoyle

I'm thinking about buying citronella candles for the patio. We spend a lot of time on the patio in the summer and mosquitoes and insects are often a nuisance. I realize that citronella candles are not 100% effective. But that's okay since we use insect repelling spray or lotion most of the time.

Post your comments
Login:
Forgot password?
Register:
    • A citronella candle.
      By: nick barounis
      A citronella candle.
    • A reaction to citronella oil may include hives.
      By: Jürgen Fälchle
      A reaction to citronella oil may include hives.
    • Citronella candles may be used as a cleaner alternative to insect repellent spray.
      By: Africa Studio
      Citronella candles may be used as a cleaner alternative to insect repellent spray.
    • Citronella candles may be used as a way to repel mosquitos.
      By: furtseff
      Citronella candles may be used as a way to repel mosquitos.