Tarragon
Artemisia dracunculus
Tarragon, or Artemisia dracunculus, is a flavorful herb known for its culinary uses, particularly in French cuisine. This perennial herb thrives in sunny locations and is cherished for its aromatic leaves, making it a popular choice for home gardens.
Everything it needs
9 essentials at a glance
Watering
Tarragon prefers moderately moist soil, so water it when the top inch of soil feels dry.
During the growing season (spring and summer), water every 1-2 weeks, adjusting frequency based on rainfall and temperature. In fall and winter, reduce watering to once every 2-4 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering can cause wilting and leaf drop.
Light
Tarragon thrives in full sun, requiring at least 6-8 hours of direct sunlight daily.
Ideal placement is in a south-facing garden bed or a sunny windowsill. While it can tolerate partial shade, too little light may result in leggy growth and reduced flavor intensity.
Soil
The ideal soil for Tarragon is well-draining, sandy loam with a pH range of 6.0 to 7.0.
Ensure good drainage to prevent root rot, and consider using a potting mix designed for herbs or adding perlite to improve aeration.
Humidity
Tarragon prefers moderate humidity levels around 40-60%.
To increase humidity, mist the leaves occasionally or place a humidity tray nearby. Signs of low humidity stress include browning leaf tips and curling leaves.
Temperature
Tarragon grows best in temperatures between 60-75°F (15-24°C).
It is hardy in USDA zones 3-9, tolerating light frost but should be protected from extreme heat above 85°F (29°C) to prevent wilting.
Fertilizing
Use a balanced, water-soluble fertilizer with an NPK ratio of 10-10-10 or similar.
Fertilize every 4-6 weeks during the growing season, and reduce or stop in fall and winter. Signs of nutrient deficiency include yellowing leaves and stunted growth.
Pruning
Prune Tarragon in early spring before new growth begins.
Use clean, sharp scissors to remove any dead or damaged stems, and trim back leggy growth to encourage bushier plants. Deadheading is not necessary, but removing flowers can help maintain flavor.
Repotting
Repot Tarragon every 2-3 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 soil.
Propagation
Tarragon can be propagated through stem cuttings or division.
For stem cuttings, take 4-6 inch cuttings from healthy plants in spring, remove lower leaves, and place them in water or moist soil until roots develop. Division can be done every 2-3 years in spring or fall, ensuring each division has roots and healthy shoots.
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 excessive heat.
How to fix it
Water the plant thoroughly and ensure it is not exposed to extreme heat. Move to a cooler location if necessary.
Leggy growth
Why it happens
Insufficient light.
How to fix it
Move the plant to a sunnier location to ensure it receives at least 6 hours of direct sunlight daily.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Remove the plant from the pot, trim away affected roots, and repot in fresh, well-draining soil.
Browning leaf tips
Why it happens
Low humidity or over-fertilization.
How to fix it
Increase humidity by misting or using a humidity tray, and reduce fertilizer application.
Care through the year
Spring
In spring, prune back any dead stems and fertilize with a balanced fertilizer to encourage new growth. Ensure the plant receives adequate sunlight.
Summer
During summer, water regularly and monitor for pests. Harvest leaves frequently to promote bushier growth and prevent flowering.
Fall
In fall, reduce watering as the plant enters dormancy. Consider bringing potted Tarragon indoors if temperatures drop significantly.
Winter
In winter, water sparingly and keep the plant in a cool, bright location. Avoid fertilizing during this dormant period.
Toxicity & Safety
Tarragon is generally non-toxic to pets and children. However, excessive consumption may cause gastrointestinal upset. The leaves are safe to eat, but avoid consuming large amounts.
Good to know
How often should I water my Tarragon?
Water Tarragon when the top inch of soil feels dry, typically every 1-2 weeks during the growing season. Reduce watering in fall and winter.
What type of soil is best for Tarragon?
Tarragon thrives in well-draining sandy loam with a pH of 6.0 to 7.0. Ensure good drainage to prevent root rot.
Can I grow Tarragon indoors?
Yes, Tarragon can be grown indoors as long as it receives at least 6-8 hours of direct sunlight daily. A south-facing window is ideal.
Why are my Tarragon leaves turning yellow?
Yellowing leaves can indicate over-watering or a nutrient deficiency. Check soil moisture and consider fertilizing if necessary.
How do I propagate Tarragon?
Tarragon can be propagated through stem cuttings or division. Take cuttings in spring or divide the plant every 2-3 years.
What temperature is best for growing Tarragon?
Tarragon grows best in temperatures between 60-75°F (15-24°C) and is hardy in USDA zones 3-9.
Is Tarragon safe for pets?
Tarragon is generally non-toxic to pets and children, but excessive consumption may cause gastrointestinal upset.
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