Updated: July 23, 2023

Lemon verbena, scientifically known as Aloysia citrodora, is a popular herb known for its refreshing lemon scent and culinary uses. This perennial plant requires proper care and attention to thrive and produce abundant foliage. One crucial aspect of its care is watering. Knowing when to water your lemon verbena plant is essential to prevent under or over-watering, which can lead to its decline. In this article, we will discuss how to tell if your lemon verbena plant needs watering.

Understanding the Watering Needs of Lemon Verbena

Before we delve into the signs that indicate the need for watering, it’s important to understand the watering requirements of lemon verbena. As a Mediterranean native, this herb prefers well-draining soil and moderate moisture levels. Overwatering can cause root rot and other diseases, whereas underwatering can lead to wilting and stunted growth.

To provide the ideal moisture levels for your lemon verbena plant, water it deeply but infrequently. Allow the soil to dry out slightly between waterings, as this replicates the natural conditions it would experience in its native habitat.

Signs that Indicate Watering is Required

  1. Wilting Leaves: One of the most obvious signs that your lemon verbena plant needs watering is when its leaves start to wilt. When the soil lacks moisture, the plant’s leaves lose their turgidity and become limp. However, it’s important not to panic at the first sight of wilting leaves, as they can also be a result of other factors such as heat stress or insufficient sunlight. It’s crucial to assess other indicators before reaching a conclusion about watering needs.

  2. Dry Soil: Checking the soil moisture level is a reliable way to determine if your lemon verbena plant needs watering. Insert your finger about an inch deep into the soil near the base of the plant. If the soil feels dry to the touch, it’s an indication that your plant is thirsty and requires watering. However, if the soil feels slightly moist or damp, it’s best to hold off on watering for a few more days.

  3. Leaf Color Change: When a lemon verbena plant is in need of water, its leaves may exhibit a change in color. The lush green leaves may turn pale or yellowish, indicating stress due to lack of moisture. The change in color is a result of reduced chlorophyll production caused by the plant’s attempt to conserve water.

  4. Curling Leaves: Another sign that your lemon verbena plant is lacking water is when its leaves start to curl inward. This curling action is a defense mechanism employed by the plant to minimize leaf surface area and reduce moisture loss through transpiration. If you notice your lemon verbena’s leaves curling, it’s essential to provide them with adequate hydration.

  5. Stunted Growth: Insufficient watering can hinder the growth of your lemon verbena plant. If you notice that your plant is not growing as vigorously as before or if new growth appears stunted, it might be an indication that watering adjustments are necessary. Providing the right amount of water will help promote healthy growth and prevent the plant from becoming weak and susceptible to diseases.

  6. Cracked Soil: In extreme cases of underwatering, the soil around your lemon verbena plant may develop cracks. These cracks occur due to the lack of moisture and can be observed near the base of the plant. If you notice such cracks in the soil, it’s crucial to water your plant immediately and adjust your watering routine accordingly.

Watering Tips for Lemon Verbena

To ensure optimal growth and health of your lemon verbena plant, follow these watering tips:

  1. Water deeply but infrequently: Instead of lightly watering your lemon verbena plant daily, water it deeply once or twice a week. This encourages the plant’s roots to grow deeper into the soil, creating a stronger and more resilient plant.

  2. Use well-draining soil: Lemon verbena plants prefer well-draining soil to prevent waterlogging. Ensure that the pot or planting area has adequate drainage holes to allow excess water to escape.

  3. Mulch around the base: Applying a layer of organic mulch, such as wood chips or straw, around the base of your lemon verbena plant helps retain moisture and prevents rapid evaporation. Mulch also acts as an insulator, protecting the roots from extreme temperatures.

  4. Observe and adjust: Regularly monitor your lemon verbena plant for signs of watering needs. By observing and adjusting your watering routine accordingly, you can provide optimal moisture levels for the plant’s growth and development.

Conclusion

Proper watering is essential for the health and vitality of your lemon verbena plant. By paying attention to signs such as wilting leaves, dry soil, leaf color change, curling leaves, stunted growth, and cracked soil, you can determine when it’s time to water your lemon verbena. Remember to follow the watering tips provided to ensure your plant thrives and continues to fill your garden with its delightful lemon aroma.