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Guides, calculators and supplies for making candles at home · Stock checked on Amazon
🍋 Fragrance oils

Citronella oil

Citronella oil is the star of classic patio candles: a fresh, lemony, grassy scent we all associate with summer evenings and dinners outside.

By The CeraVelas Team Updated ⏱ 6 min read

What it’s for

  • Patio and backyard candles
  • Outdoor candles in tins or concrete vessels
  • Summer blends with lemongrass and eucalyptus
  • Fresh wax melts for well-ventilated spaces

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📑 Contents +

⚡ Our top picks: citronella oil

Stock checked on October 6, 2026
Top ratedPlant Therapy Organic Citronella Essential Oil 10 mL (1/3…
Plant Therapy Organic Citronella Essential Oil 10 mL (1/3… 8.9 CeraVelas score: 8.9 out of 10 Check price
Best sellerCitronella Essential Oil for Skin Hair Care, Massage…
Citronella Essential Oil for Skin Hair Care, Massage… 8.3 CeraVelas score: 8.3 out of 10 Check price
Best sellerNOW Essential Oils, Citronella Oil, Undiluted, Steam…
NOW Essential Oils, Citronella Oil, Undiluted, Steam… 8.8 CeraVelas score: 8.8 out of 10 Check price

Best citronella oil in stock

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CeraVelas score: combines the average rating and the number of customer reviews on Amazon.

What citronella oil is

Citronella is an aromatic grass closely related to lemongrass. Its essential oil is steam-distilled from the leaves and has a strong, citrusy, slightly herbal smell. In candle making you’ll find two different products under the same name: citronella essential oil, which is 100% botanical, and citronella fragrance oil, a candle-grade blend that recreates the scent and sometimes contains some essential oil.

Let’s be realistic: citronella is traditionally associated with keeping mosquitoes away, but the effect of a candle is modest and depends heavily on wind, space and distance. Think of it as part of your patio atmosphere, not a replacement for insect repellent or screens. And always burn it outdoors or in a very well-ventilated space.

Types and blends

Citronella on its own is instantly recognizable, but it can smell a bit flat. Many candle makers blend it with other oils that boost the fresh character and add depth:

  • Lemongrass: amplifies the citrus note.
  • Eucalyptus: adds a cool, balsamic freshness.
  • Geranium: softens it with a floral touch.
  • Cedarwood: provides a woody base that anchors the blend.
OptionScentThrow in a candleChoose it when
Citronella essential oilNatural, strong, herbalMediumYou want a 100% botanical candle
Citronella fragrance oilRounder and more stableGoodYou want more throw and consistency
Blend with lemongrass and eucalyptusFresh and layeredMedium to goodYou want a less one-note scent

How much to use

In soy or other natural wax blends, a typical load is 6–10% of the wax weight, always within the maximum on your wax and oil data sheets. Weigh it on a scale and use the fragrance calculator to get it right. More oil doesn’t mean more effect: overloading makes the candle sweat and burn poorly.

How to make a citronella candle

  1. Pick a sturdy outdoor vessel: candle tins or concrete candle vessels work great.
  2. Outdoor vessels tend to be wide and there’s often a breeze, so use a robust wick or several; HTP wicks are a good match for natural waxes.
  3. Melt the wax in a double boiler, add the weighed oil at the temperature your wax maker recommends and stir for about 2 minutes.
  4. Pour, let it cool away from drafts, then cover and cure for one to two weeks.
  5. Test burn outdoors in a spot sheltered from the wind.

You’ll find the full walkthrough in our citronella candle project.

Common mistakes

  • Promising it "gets rid of" mosquitoes. It’s a pleasant scent with a limited effect; don’t market it as a repellent.
  • Burning it indoors. The scent is intense and the candle is designed for outdoor use.
  • Using a small wick in a wide vessel. In the wind it will tunnel or blow out.
  • Heating the oil on its own. Always respect the flash point listed by your supplier.
  • Leaving it burning unattended, especially near umbrellas, dry plants or tablecloths.

A final tip: citronella candles look best when they match your outdoor space. Simple tins, rustic concrete or terracotta-style vessels all suit a patio, and a lid keeps the scent fresh between uses. Store finished candles somewhere cool and dark so they’re ready when summer comes around.

Pros and cons

👍 Pros

  • ✓ Fresh, instantly recognizable scent
  • ✓ Available as essential oil and fragrance oil
  • ✓ Blends well with other herbal oils
  • ✓ Perfect for outdoor candles

👎 Cons

  • ✗ Limited effect on bugs
  • ✗ Too strong for indoor use
  • ✗ Pure essential oil has moderate throw
  • ✗ Needs proper safety labeling if you sell

How to use citronella oil, step by step

  1. Choose an outdoor vessel and a robust wick.
  2. Calculate the oil amount from your wax weight.
  3. Melt the wax in a double boiler.
  4. Add the oil at the recommended temperature and stir.
  5. Pour, cover and let it cure.
  6. Test burn outdoors, sheltered from the wind.

Tips

  • Add 20–30% lemongrass to the blend for a brighter scent.
  • Use vessels with tall sides to protect the flame from wind.
  • Label the candle "for outdoor use."
  • Store candles with lids on so they keep their scent until summer.

Projects with citronella oil

Related supplies

Frequently asked questions

Do citronella candles keep mosquitoes away?+

The effect is modest and depends on wind and distance. They add to the atmosphere but aren’t a substitute for insect repellent.

How much citronella oil should I use?+

In natural wax, typically 6–10% of the wax weight, without exceeding the maximum on the data sheet.

Is citronella essential oil or fragrance oil better?+

Essential oil is 100% natural; fragrance oil usually throws more and is more stable. Many makers use a mix of both.

Can I burn a citronella candle indoors?+

It’s not recommended. The scent is very strong, and these candles are designed for outdoors or very well-ventilated spaces.

What wick works best for a citronella candle?+

A robust wick or multiple wicks, since outdoor vessels are usually wide. HTP wicks work well in natural waxes; confirm with a test burn.

⭐ Our pick

Plant Therapy Organic Citronella Essential Oil 10 mL (1/3…

Check price