Lemon Bee-brush
Aloysia citrodora
Lemon Verbena (Aloysia citrodora) is a fragrant herb known for its lemon-scented leaves, often used in teas and culinary dishes. Native to South America, it is cherished for its aromatic qualities and ease of care, making it a popular choice for home gardens.
Everything it needs
9 essentials at a glance
Watering
Lemon Verbena prefers consistently moist soil but should not be waterlogged.
Water when the top inch of soil feels dry, typically every 5-7 days during the growing season. In winter, reduce watering to every 2-3 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf drop.
Light
Lemon Verbena thrives in full sun, requiring at least 6-8 hours of direct sunlight daily.
Ideal placement is a south-facing window or an outdoor location with plenty of sunlight. It can tolerate partial shade but may not flower as profusely.
Soil
The ideal soil for Lemon Verbena is well-draining, sandy loam with a pH range of 6.0 to 7.0.
A recommended potting mix is a blend of potting soil, perlite, and sand to enhance drainage. Ensure the pot has drainage holes to prevent water accumulation.
Humidity
Lemon Verbena prefers moderate humidity levels around 40-60%.
To increase humidity, mist the leaves regularly or place a humidity tray filled with water and pebbles beneath the pot. Signs of humidity stress include browning leaf edges and leaf drop.
Temperature
The ideal temperature range for Lemon Verbena is 65-75°F (18-24°C).
It is hardy in zones 8-11 and can tolerate brief periods of cold down to 30°F (-1°C) but should be protected from frost. In summer, it benefits from slightly warmer temperatures.
Fertilizing
Use a balanced liquid fertilizer with an NPK ratio of 10-10-10 every 4-6 weeks during the growing season.
In fall and winter, reduce fertilization to once every 8 weeks. Signs of nutrient deficiency include yellowing leaves and stunted growth.
Pruning
Prune Lemon Verbena in early spring to encourage bushy growth and remove any dead or damaged stems.
Use sharp, clean pruning shears to cut back about one-third of the plant. Deadheading spent flowers can also promote further blooming.
Repotting
Repot Lemon Verbena every 1-2 years or when it becomes root-bound.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes and stunted growth. To repot, gently remove the plant from its pot, loosen the roots, and place it in fresh potting mix.
Propagation
Lemon Verbena can be propagated through stem cuttings.
Take 4-6 inch cuttings from healthy stems in spring or early summer. Remove the lower leaves, dip the cut end in rooting hormone, and plant in a moist potting mix. Keep the cuttings in a warm, humid environment until roots develop, usually within 2-4 weeks.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or nutrient deficiency.
How to fix it
Check soil moisture and reduce watering frequency. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Wilting leaves
Why it happens
Under-watering or high temperatures.
How to fix it
Increase watering frequency and ensure the plant is not exposed to extreme heat for prolonged periods.
Browning leaf edges
Why it happens
Low humidity or over-fertilization.
How to fix it
Increase humidity levels by misting or using a humidity tray, and reduce fertilizer application.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Ensure the pot has drainage holes, reduce watering, and consider repotting into fresh, well-draining soil.
Pest infestations (e.g., aphids, spider mites)
Why it happens
Dry conditions or stress.
How to fix it
Inspect regularly, and treat with insecticidal soap or neem oil if pests are found.
Care through the year
Spring
In spring, prune back any dead growth and start fertilizing every 4-6 weeks. Ensure the plant receives plenty of sunlight as it begins to grow.
Summer
During summer, keep the soil consistently moist and monitor for pests. Regularly check humidity levels, especially in dry conditions.
Fall
In fall, gradually reduce watering as growth slows. You may also reduce fertilization frequency to once every 8 weeks.
Winter
In winter, protect Lemon Verbena from frost and reduce watering to every 2-3 weeks. Keep it in a bright location to maintain light exposure.
Toxicity & Safety
Lemon Verbena is generally considered non-toxic to pets and children. However, ingestion of large quantities may cause mild gastrointestinal upset. The leaves are safe to touch and handle.
Good to know
Why are my Lemon Verbena leaves turning yellow?
Yellow leaves on Lemon Verbena can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly.
How often should I water my Lemon Verbena?
Water your Lemon Verbena when the top inch of soil feels dry, typically every 5-7 days during the growing season, and every 2-3 weeks in winter.
What is the best light for Lemon Verbena?
Lemon Verbena thrives in full sun, requiring at least 6-8 hours of direct sunlight daily for optimal growth and flowering.
How do I propagate Lemon Verbena?
You can propagate Lemon Verbena through stem cuttings taken in spring or early summer. Use rooting hormone and keep the cuttings in a warm, humid environment until they root.
When should I prune my Lemon Verbena?
Prune Lemon Verbena in early spring to encourage bushy growth and remove any dead or damaged stems, cutting back about one-third of the plant.
What type of soil is best for Lemon Verbena?
Lemon Verbena prefers well-draining sandy loam with a pH range of 6.0 to 7.0. A mix of potting soil, perlite, and sand works well.
Is Lemon Verbena safe for pets?
Yes, Lemon Verbena is generally considered non-toxic to pets and children, although ingestion of large amounts may cause mild gastrointestinal upset.
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