Home Gardening How to Grow and Care for a Citronella Plant Citronella plants are known for their distinctive scent—but do they really repel mosquitoes? By Ashley Abramson Ashley Abramson Instagram Website Ashley Abramson has written for online and print publications for ten years, with a focus on lifestyle and home content. She's written for the New York Times, Washington Post, Allure, InStyle, and more. Previously, she worked as editor for local print and online publications. Real Simple's Editorial Guidelines Updated on February 23, 2023 Fact checked by Isaac Winter Fact checked by Isaac Winter Isaac Winter is a fact-checker and writer for Real Simple, ensuring the accuracy of content published by rigorously researching content before publication and periodically when content needs to be updated. Highlights: Helped establish a food pantry in West Garfield Park as an AmeriCorps employee at Above and Beyond Family Recovery Center. Interviewed Heartland Alliance employees for oral history project conducted by the Lake Forest College History Department. Editorial Head of Lake Forest College's literary magazine, Tusitala, for two years. Our Fact-Checking Process Share Tweet Pin Email In This Article View All In This Article Does the Citronella Plant Repel Mosquitoes? Citronella Plant Care Light Soil Water Temperature and Humidity Fertilizer How to Propagate Citronella Plant vs. Citronella Grass Photo: Maria Jose Ceballos/Getty Images Spring through early summer is the perfect time to plan out your potted plants, and if you're hunting for a new addition to your garden this year, consider the citronella plant. Ideal for window boxes or patio pots, the citronella plant features green, lacy leaves and pretty pink blooms. While the citronella plant—aka Pelargonium graveolens—shares a name with the grassy plant used to stave off mosquitoes, it's actually a type of scented geranium. Citronella oil is produced from citronella grass, which is part of the Cymbopogon genus. Like the grass, the citronella plant exudes a distinct scent, but instead of that grassy odor, it smells more citrusy. Taking care of a citronella plant is relatively simple, and if you meet its needs, you can enjoy pink flowers in the summer months. Here's everything you need to know about how to grow citronella plants, according to the experts. Does the Citronella Plant Repel Mosquitoes? The citronella plant has a lovely lemony smell, which some people believe may fend off pests. But don't get your hopes up. John Saltiel, a gardener at the United States Botanic Garden, says simply planting citronella likely won't affect insects. Crushing the plant's aromatic leaves and rubbing them on your skin might repel bugs, but don't expect store-bought bug repellant-like results. "I've used it myself, and I noticed effects for a very short period, which isn't very practical," Saltiel says. Citronella Plant Care The citronella plant can live in a pot inside your home, but it will probably be happiest outdoors. Tim Pollak, assistant manager and outdoor floriculturist of plant production at the Chicago Botanic Garden, recommends keeping it outside in a container so you can better control the light and moisture, and then bring it indoors for the winter months if you live in a cooler climate. The citronella plant will survive outdoors year-round in hardiness zones 9b through 11, meaning that the citronella plant is a perennial in those specific zones. Light More light is better for citronella plants, which tend to get leggy without it. "You'll have a stronger plant with more flowers," says Pollak. While they can tolerate full sun, they prefer bright, filtered light—for example, beneath a tree or on the west side of your home, where it won't get a full day of sun. Soil Citronella plants can grow happily in many types of soil. Choose a potting medium that keeps the roots moist between waterings, such as a peat moss-based potting mix. "Don't use regular heavy garden soil, which tends not to hold water," Pollak says. "You want the soil to maintain some moisture between watering." A soil that contains a mix of perlite, peat moss, and garden soil can also encourage growth. Water Even if your citronella plant is outside, don't rely on the rain to water it. Check the soil regularly, and thoroughly water it when the top few inches feel dry. Don't neglect it for too long. "The lower leaves will start to turn yellow if it gets too dry, and then you'll start to lose the older leaves," says Pollak. Temperature and Humidity Citronella plants are robust, so they can handle temperatures from the upper 30s to 90 degrees Fahrenheit. If it's colder than freezing or hotter than 90 degrees, bring your plant inside. Both conditions can easily damage the plant. High moisture levels, Saltiel says, can also cause them to rot—they prefer humidity in the 40 to 70 percent range. Fertilizer Maintaining a healthy plant with fertilizer can help encourage flowering in the summer months. Pollak recommends fertilizing citronella plants once a month when they're actively growing in the spring and summer; then, stop fertilizing in the fall. Choose a well-balanced fertilizer that contains magnesium for optimal growth. How to Propagate a Citronella Plant If you'd rather not start a citronella plant from seed, you can easily grow citronella from a cutting. Choose your cutting. With a pair of scissors or pruners, cut two to three inches from a healthy stem. The cutting should have two nodes (the bumps that grow stems, leaves, and buds). Cut off all but two leaves. To ensure the stem can root, only leave two leaves from the stem, ideally at the tip of the cutting. Add rooting hormone. Unlike with succulents, you don't need to let the stem fully dry before planting it. However, adding a store-bought rooting hormone to the bottom of the cutting may aid growth. Pot the cutting. Stick the cutting, bottom end first, into a small pot with soil. Make sure to keep the leaves moist—you can do that by spritzing them regularly or creating a greenhouse over the cutting with the lid of a cherry tomato container. An amply moist environment, Pollak says, will help the plant root. You should have roots within a month! Citronella Plant vs. Citronella Grass While they share nicknames, the citronella plant and citronella grass are from two different genuses. "They aren't anywhere near related," says Saltiel. "One is more similar to a geranium in your flower bed, and the other is more similar to your grass." Their only similarity, says Pollak, is they share a distinct smell—and the oil from a citronella plant might fend off some mosquitoes for a short period of time if the leaves are crushed and rubbed directly onto the skin. To repel swaths of bugs, you're better off using a product containing citronella oil derived from citronella grass. Read Next: How to Care for Kalanchoe—and Get the Most Vibrant Blooms Was this page helpful? Thanks for your feedback! Tell us why! Other Submit