What is the difference between citronella plant and citronella grass?

The difference between the citronella plant and citronella grass is quite significant, despite the fact that they share the same nickname. It’s important to note that they belong to different genuses and are not related to each other in any way.

Firstly, let’s talk about the citronella plant. This plant is actually a variety of geranium, which you might find in your flower bed. It is scientifically known as Pelargonium citrosum. The leaves of the citronella plant are often used for their lemony fragrance, which is believed to repel insects such as mosquitoes. Many people mistakenly believe that planting citronella geraniums will keep mosquitoes away, but the effectiveness of this is still debated among experts.

On the other hand, the citronella grass, also known as Cymbopogon nardus or Cymbopogon winterianus, is more similar to your typical grass. It is a perennial grass that can grow up to 6 feet tall and is native to tropical regions. The essential oil extracted from the leaves of citronella grass is commonly used as an insect repellent in candles, sprays, and lotions. It has a strong, citrusy scent that is believed to mask the odors that attract mosquitoes and other biting insects.

In terms of appearance, the citronella plant and citronella grass also have distinct differences. The citronella plant, with its geranium-like leaves, has a more compact and bushy growth habit. It usually reaches a height of only 1 to 2 feet and produces small, pink or lavender flowers. On the other hand, the citronella grass has long, slender blades that resemble common grass species. It forms clumps and can grow quite tall, as mentioned earlier.

When it comes to cultivation, the citronella plant is often grown in containers or as ornamental plants in gardens. It prefers full sun and well-draining soil. Regular pruning is recommended to maintain its compact shape. On the other hand, citronella grass is typically grown in larger outdoor spaces, especially in tropical regions. It requires ample sunlight, regular watering, and periodic trimming to prevent it from becoming overgrown.

The citronella plant and citronella grass may share a nickname, but they are from different genuses and have distinct characteristics. The citronella plant is more similar to a geranium, while the citronella grass is more similar to typical grass species. Their uses and cultivation requirements also differ. Understanding these differences is essential for anyone interested in using these plants for their insect-repelling properties or for decorative purposes in their gardens.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.