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Nurturing Greens: How to Take Care of a Lemongrass Plant

by | Dec 6, 2023 | How To

Welcome to our guide on how to take care of a lemongrass plant. Lemongrass is not only a beautiful ornamental grass but also a versatile herb that adds a fresh citrusy flavor to your dishes. Whether you’re an experienced gardener or a beginner, this article will provide you with the essential tips and techniques to ensure the health and success of your lemongrass plant.

Key Takeaways:

  • Provide ample heat, light, and moisture for your lemongrass plant to thrive.
  • Plant lemongrass in a sunny location with well-draining soil.
  • Regularly water your lemongrass, keeping the soil moist but not waterlogged.
  • Fertilize with a nitrogen-rich fertilizer and incorporate compost for nutrient enrichment.
  • Prune your lemongrass annually to maintain its shape and remove dead foliage.

Planting Lemongrass

To successfully grow lemongrass, you’ll need to pay attention to its sunlight requirements, watering needs, and proper planting techniques. Here’s what you need to know:

Sunlight Requirements

Lemongrass thrives in full sun, so it’s important to choose a sunny location with at least six hours of direct sunlight daily. This will ensure optimal growth and development of the plant. If you’re growing lemongrass indoors, place it in a spot that receives plenty of bright, indirect sunlight.


Lemongrass requires regular watering to keep the soil consistently moist but not waterlogged. It’s important to strike a balance between underwatering and overwatering. Check the soil moisture regularly and water when the top inch of soil feels dry. Avoid letting the plant sit in standing water, as this can lead to root rot. Adding a layer of organic mulch around the plant can help retain moisture and regulate soil temperature.

Planting Techniques

Lemongrass is typically planted from potted nursery starts, which can be found at your local garden center or ordered online. Plant the lemongrass in well-draining soil that has been enriched with compost or organic matter. Dig a hole that is slightly larger than the root ball of the plant and place it in the hole. Backfill the hole with soil, gently firming it around the base of the plant. Water thoroughly after planting to help settle the soil and promote root establishment.

Aspect Requirements
Sunlight Full sun, at least six hours of direct sunlight daily
Watering Consistently moist, but not waterlogged soil
Planting Well-draining soil enriched with compost or organic matter

With these planting tips in mind, you’ll be well on your way to successfully growing lemongrass. In the next section, we’ll explore the best practices for fertilizing your lemongrass to ensure healthy growth and abundant harvests.

Fertilizing Lemongrass

Lemongrass, like any other plant, requires proper nutrition to thrive. Fertilizing the plant helps provide it with the essential nutrients it needs for optimal growth. The right balance of nutrients ensures that the lemongrass plant remains healthy and vigorous.

When it comes to fertilizing lemongrass, a nitrogen-rich fertilizer is recommended. Nitrogen promotes leafy growth and helps the plant develop a lush, green foliage. A slow-release 6-4-0 fertilizer can be used to feed the lemongrass plant throughout the growing season. This type of fertilizer releases nutrients gradually, ensuring a steady supply of nitrogen over time.

Another option for fertilizing lemongrass is using manure tea. This organic fertilizer provides additional trace nutrients that can benefit the plant’s overall health. To make manure tea, simply steep well-aged manure in water for a few days, then strain the liquid and dilute it with water before applying it to the soil around the lemongrass plant.

Table: Essential Nutrients for Lemongrass

Nutrient Function Source
Nitrogen (N) Promotes leafy growth Fertilizer, manure tea
Phosphorus (P) Stimulates root development and flowering Fertilizer
Potassium (K) Enhances overall plant health and disease resistance Fertilizer

When planting lemongrass, it’s beneficial to incorporate compost, manure, or leaf mold into the soil. These organic amendments enrich the soil with nutrients, providing a healthy foundation for the lemongrass plant’s growth. However, it’s important not to over-fertilize, as excessive nitrogen can lead to root burn and decline in the plant. Follow the instructions on the fertilizer packaging or consult a gardening expert for guidance on proper application.

By providing the lemongrass plant with the right nutrients through fertilization, you can ensure its continued vitality and robust growth. Remember to maintain a balanced fertilization regime and monitor the plant’s response to ensure that it thrives in your garden.

Pruning Lemongrass

Pruning lemongrass is essential for maintaining its health and appearance. Regular pruning helps to remove dead foliage, promote new growth, and keep the plant in a tidy shape. Here are some tips on how to properly prune your lemongrass plant:

  1. Begin pruning at the end of winter, before new shoots emerge. This is the best time to trim the plant back to about 6 inches high. Use clean, sharp pruning shears for a clean cut.
  2. Remove any brown or dead leaves from the plant. These can be safely discarded as they no longer contribute to the plant’s growth.
  3. Trim the remaining healthy leaves to your desired length. Most people prefer to keep their lemongrass plants around 2-3 feet tall, but you can adjust the height based on your personal preference.
  4. Make sure to dispose of the pruned plant materials properly. Lemongrass leaves and trimmings can be added to compost piles or used as mulch for other plants.

Pruning not only keeps your lemongrass plant looking neat and tidy, but it also stimulates new growth, resulting in a healthier and more vigorous plant. By following these pruning guidelines, you can ensure that your lemongrass plant thrives and continues to provide you with fresh, aromatic leaves.

Benefits of Pruning Lemongrass

Pruning lemongrass has several benefits that contribute to the overall health and vitality of the plant:

  • Promotes new growth: Pruning stimulates the growth of new shoots and leaves, ensuring that your lemongrass plant remains lush and full.
  • Removes dead foliage: Trimming away dead or brown leaves not only improves the plant’s appearance but also prevents the spread of diseases and pests.
  • Controls plant size: Pruning helps to manage the size of your lemongrass plant, making it more manageable and preventing it from overcrowding other plants in your garden.

By incorporating regular pruning into your lemongrass plant care routine, you can enjoy a healthier, more vibrant plant that continues to thrive year after year.

Pruning Lemongrass

Propagating Lemongrass

Propagating lemongrass is a simple and rewarding process that allows you to expand your lemongrass garden. There are two main methods of propagation: division and seed starting.

Dividing Lemongrass

To divide lemongrass, start by digging up the mature clump of lemongrass. Carefully separate the clump into smaller sections, ensuring that each division has several bulbs attached. Replant the divisions immediately in well-draining soil and water them thoroughly to help them establish.

Steps for Dividing Lemongrass
Dig up the mature clump of lemongrass
Separate the clump into smaller sections, ensuring each division has several bulbs attached
Replant the divisions immediately in well-draining soil
Water the divisions thoroughly to help them establish

Growing Lemongrass from Seeds

Starting lemongrass from seeds can be a bit more challenging, as seeds can be difficult to find. To start lemongrass from seeds, press the seeds lightly into moist potting mix, and keep them warm until germination occurs. This usually takes around 10 to 14 days. Once the seedlings have established, transfer them to individual pots or outdoor beds.

Steps for Growing Lemongrass from Seeds
Press the seeds lightly into moist potting mix
Keep the seeds warm until germination occurs (around 10 to 14 days)
Transfer the seedlings to individual pots or outdoor beds

Whether you choose to propagate lemongrass through division or seeds, both methods can yield successful results. Enjoy the process of expanding your lemongrass garden and experiment with different propagation techniques to find what works best for you.

Dividing Lemongrass

Potted Lemongrass

If you have limited garden space or live in a colder climate, growing lemongrass in containers is a great option. It allows you to enjoy the benefits of this versatile plant while having the flexibility to move it indoors during the winter months. To successfully grow lemongrass in containers, follow these simple steps:

  1. Choose the right pot: Select a large pot with a diameter of at least 12 inches to accommodate the lemongrass’s root system. Make sure it has drainage holes at the bottom to prevent waterlogged soil.
  2. Use quality potting soil: Opt for a high-quality commercial potting soil that is well-draining and enriched with time-released fertilizer. This will provide the necessary nutrients for healthy growth.
  3. Repot annually: Repot the lemongrass plant in the spring to replenish the soil and allow for its continued growth. Choose a pot that is slightly larger than the previous one to accommodate the increasing root size.
  4. Provide adequate sunlight: Lemongrass requires full sun, so place the container in a location that receives at least six hours of direct sunlight each day. If needed, you can supplement with artificial grow lights.
  5. Water regularly: Keep the soil consistently moist, but not waterlogged. Water thoroughly whenever the top inch of soil feels dry to the touch. Avoid overwatering, as it can lead to root rot.

Growing lemongrass in containers allows you to easily move the plant indoors when the temperatures drop. Before bringing it inside, check for any pests or insects that may have taken up residence in the foliage. Give the plant a gentle shake or use a spray of water to dislodge any unwanted visitors. Place the container in a bright, sunny location indoors, such as near a south-facing window. Monitor the plant for any signs of stress, such as yellowing leaves or wilting, and adjust the watering and lighting conditions accordingly.

Table: Comparison of Growing Lemongrass in Containers vs. In-Ground

Growing Lemongrass in Containers Growing Lemongrass in the Ground
Space Requirements Requires a large pot with a minimum diameter of 12 inches. Needs ample garden space to accommodate its spreading growth habit.
Portability Can be easily moved indoors during winter or relocated based on sunlight requirements. Roots establish in the ground and are not easily movable.
Winter Protection Can be brought indoors during winter to protect from frost and cold temperatures. May require additional winter protection, such as mulching, in colder climates.
Control Allows for better control of soil conditions, water, and sunlight. Relies on natural conditions and may be affected by variations in soil quality and weather.

Remember to fertilize your potted lemongrass plant regularly with a nitrogen-rich fertilizer to promote healthy growth. Prune the plant as needed to maintain its shape and remove any dead or yellowing leaves. With proper care and attention, your potted lemongrass will thrive and provide you with a fresh supply of flavorful herbs all year round.

potted lemongrass

Winter Care for Lemongrass

During winter, lemongrass requires special care to ensure its survival and regrowth in the following season. Whether you live in a region where lemongrass is perennial or you need to overwinter it indoors, here are some tips to protect your lemongrass plant during the colder months.

Overwintering Lemongrass in Perennial Zones

If you are lucky enough to live in zones 10 and 11, where lemongrass is perennial, your plant will remain evergreen throughout the year. However, in zones 8 and 9, lemongrass may die back to the ground during winter. To protect it, you can layer mulch around the base of the plant to insulate the roots and prevent freezing. Avoid cutting back the foliage until spring, as the brown leaves provide additional protection from frost.

Indoor Protection for Colder Regions

If you live in a region where lemongrass is not perennial, you can dig up the clumps and bring them indoors in containers for the winter. Before the first frost, carefully dig up the entire clump, taking care not to damage the roots. Place the clump in a container with well-draining soil and water thoroughly. Position the container in a bright, sunny location where the plant can receive at least six hours of direct sunlight each day. Water sparingly during winter, allowing the top inch of soil to dry out between waterings.

Preventing Rust Fungus

Rust fungus is a common issue that can affect lemongrass, causing brown spots or streaks on the leaves. To prevent rust fungus, avoid overhead watering and instead water at the soil level. This helps keep the foliage dry and reduces the chances of fungal growth. Additionally, maintaining proper air circulation around the plant by spacing them adequately can also help prevent rust fungus.

Winter Care for Lemongrass

Winter Care Tips for Lemongrass Protective Measures
For perennial zones (10 and 11) Layer mulch around the base to insulate roots
For colder regions (8 and 9) Bring indoors in containers, provide bright sunlight
Avoiding rust fungus Water at the soil level, maintain proper air circulation

Harvesting Lemongrass

Once your lemongrass plant has matured and established itself, it’s time to reap the rewards of your effort and enjoy the fresh, aromatic flavor it brings to your cooking. Harvesting lemongrass is a simple process that allows you to incorporate this versatile herb into a variety of dishes.

To harvest lemongrass, start by selecting mature stalks that are at least half an inch thick. Use a sharp knife or pair of garden shears to cut the stalks close to the base, just above the soil level. Avoid cutting too close to the ground as this may damage the crown and inhibit regrowth.

Once you have harvested the lemongrass stalks, remove the tough outer leaves by peeling them away. You will be left with the tender, pale-yellow inner stalks that are packed with the distinctive citrusy flavor of lemongrass. Chop or mince the stalks according to your recipe’s requirements, savoring the fresh aroma that fills the air as you work with this fragrant herb.

Harvesting Lemongrass: Key Points
Select mature stalks that are at least half an inch thick.
Cut the stalks close to the base, just above the soil level.
Remove the tough outer leaves and chop or mince the tender inner stalks.
Store harvested lemongrass in the refrigerator or freeze it for future use.

“Harvesting lemongrass is a satisfying experience that allows you to infuse your dishes with its delightful citrus aroma and taste. By following the proper techniques, you can enjoy the full flavor of this versatile herb.”

After harvesting lemongrass, you can store it in the refrigerator for up to two weeks. Simply place the stalks in a zip-top bag with a damp paper towel to help retain moisture. Alternatively, you can freeze lemongrass for longer-term storage. Chop the stalks into smaller pieces and place them in an airtight container or freezer bag. Lemongrass will retain its flavor for up to six months when frozen.

harvesting lemongrass

Lemongrass Pests and Diseases

While lemongrass is generally known for its hardiness and pest-resistant properties, it can still face some common issues. Understanding the potential pests and diseases that can affect your lemongrass plant is essential for successful cultivation.


Lemongrass plants may occasionally fall victim to pests such as aphids, spider mites, and scale insects. These pesky creatures can cause damage by sucking sap and weakening the plant. Regular monitoring is key to identify any early signs of infestation. If a problem is detected, organic insecticidal soap or neem oil can be used as effective remedies. Apply these treatments according to the product instructions and ensure thorough coverage of the affected areas.


Rust fungus is a common concern for lemongrass, characterized by the presence of brown spots or streaks on the leaves. This fungal infection can adversely impact the health of the plant. To prevent rust fungus, avoid overhead watering, as this can create a moist environment conducive to disease development. Instead, water at the soil level to minimize the risk. Maintaining good air circulation around the plant by avoiding excessive crowding can also be helpful in preventing rust fungus.

Preventing and Treating Issues:

Regular care and monitoring are crucial for keeping your lemongrass plant healthy and resilient. Inspect the plant regularly for any signs of pests or diseases and take immediate action if needed. Creating a conducive environment for the plant’s growth, including providing adequate light and moisture, can help prevent stress and minimize the risk of infestation or infection. Remember to maintain proper spacing between plants to promote air circulation, and avoid overwatering. By being proactive and attentive, you can minimize the occurrence of issues and ensure the long-term success of your lemongrass plants.

Pests Diseases
Aphids Rust fungus
Spider mites
Scale insects

Other Uses for Lemongrass

Lemongrass is not only valued for its culinary uses but also for its versatility in various other applications. One of its notable uses is in aromatherapy, where its fragrant oil is commonly used for its calming and stress-relieving properties. The refreshing citrus scent of lemongrass can create a soothing atmosphere and promote relaxation.

Additionally, lemongrass is a well-known natural insect repellent. Its strong scent acts as a deterrent for mosquitoes and other pests. Many natural insect repellents feature lemongrass as an active ingredient, providing an effective and chemical-free option for keeping bugs at bay. Whether you’re enjoying a picnic in the park or spending time outdoors, lemongrass can help protect you from annoying insect bites.

It’s worth noting that there is another closely related species called citronella grass, which is often confused with lemongrass. Citronella grass is well-known for its powerful insect-repellent properties and is a common ingredient in citronella candles and other bug-repelling products. While citronella grass and lemongrass share similar characteristics and scents, they are not the same plant.

In summary, lemongrass offers more than just its culinary benefits. Its fragrant oil makes it a popular choice in aromatherapy, promoting relaxation and stress relief. Additionally, lemongrass serves as a natural insect repellent, helping to keep mosquitoes and other pests away. However, it’s important to note that while lemongrass has insect-repelling qualities, it is not as potent as citronella grass, which is specifically bred for its insect-repellent properties.

Tips for Success with Lemongrass

If you want to successfully grow and care for lemongrass, there are a few tips you should keep in mind. Firstly, it’s important to provide your lemongrass plant with the right growing conditions. This includes planting it in a sunny location that receives at least six hours of direct sunlight daily. Lemongrass also thrives in well-draining, nutrient-rich soil, so consider incorporating compost or other organic amendments to provide the necessary nutrients.

Regular care is essential for the health of your lemongrass plant. This includes watering it regularly to keep the soil moist but not waterlogged. Be sure to monitor for pests and diseases, as lemongrass can be susceptible to certain pests like aphids and spider mites. If necessary, use organic insecticidal soap or neem oil to control these pests. Additionally, regular pruning is recommended to maintain the shape of the plant and remove any dead foliage.

If you’re looking to expand your lemongrass collection or share it with others, propagation is a great option. Lemongrass can be easily propagated through division or starting from seeds. Division involves digging up the plant clump, separating it into smaller clumps, and replanting them. Starting from seeds can be a bit more challenging, but it’s possible with the right techniques.

Tips for Success with Lemongrass
Provide ample sunlight
Use well-draining, nutrient-rich soil
Water regularly and avoid waterlogging
Monitor for pests and diseases
Prune regularly to maintain shape
Propagate through division or seeds

By following these tips for success, you can enjoy a thriving lemongrass plant and all the benefits it has to offer. Whether you’re using it in cooking, enjoying its fragrant oil, or using it as a natural insect repellent, lemongrass is a versatile and valuable addition to any garden or home.


In conclusion, taking care of a lemongrass plant can be a fulfilling endeavor. By providing the right growing conditions, such as ample heat, light, and moisture, you can ensure the success of your plant. Remember to plant it in a sunny location and water it regularly to keep the soil moist but not waterlogged.

Regular pruning will help maintain the shape of the plant and remove any dead foliage. You can also propagate the lemongrass plant through division or starting from seeds to expand your garden. Keep a close eye on pests and diseases, and take necessary steps to control them using organic solutions.

Whether you’re using lemongrass in cooking or taking advantage of its natural insect-repellent properties, this versatile plant is a valuable addition to any garden. So go ahead and nurture your lemongrass plant, and enjoy the beauty, fragrance, and culinary benefits it offers!


Can lemongrass be grown in colder regions?

In colder regions, lemongrass can be grown as an annual or brought indoors during the winter months.

How often should lemongrass be watered?

Lemongrass should be watered regularly, preferring moist but not waterlogged soil.

When is the best time to plant lemongrass?

Lemongrass is typically planted in the spring after the last frost.

How can lemongrass be propagated?

Lemongrass can be propagated through division or starting from seeds.

What is the best fertilizer for lemongrass?

Lemongrass benefits from a nitrogen-rich fertilizer. A slow-release 6-4-0 fertilizer is recommended.

How should lemongrass be pruned?

Lemongrass should be pruned annually, cutting it to about 6 inches high before new shoots emerge.

Can lemongrass be grown in containers?

Yes, lemongrass can be grown in containers with a diameter of at least 12 inches.

How can lemongrass be protected during the winter?

In colder regions, lemongrass can be dug up and grown indoors in containers during the winter.

How is lemongrass harvested?

Lemongrass can be harvested by removing individual stalks, removing the tough outer leaves, and using the tender white stalks for cooking.

What pests and diseases affect lemongrass?

Lemongrass can be affected by pests like aphids, spider mites, and scale insects. Rust fungus is a common disease that can affect lemongrass.

What are the other uses of lemongrass?

Lemongrass is commonly used in aromatherapy, as a natural insect repellent, and in various other products.

What are some tips for successful lemongrass growth?

Provide ample heat, light, and moisture; use well-draining, nutrient-rich soil; prune the plant annually; and monitor for pests and diseases.