Published: 01/03/2021 | Last Updated: 31/07/2026 | Reading Time: 9 minutes

Thai Coriander 101: Everything You Need to Know About Cultivating this Fragrant Herb

Are you a fan of Thai cuisine? If so, you’ve likely encountered the aromatic and flavourful herb known as Thai coriander. Also known as Perennial Coriander or Ngo Gai, Thai coriander is a staple in Thai cooking, adding a unique and refreshing taste to dishes. But did you know that you can easily cultivate this fragrant herb right in your own backyard? In this comprehensive guide, we will take you through everything you need to know about growing and caring for Thai coriander. From selecting the right variety and preparing the soil to providing the ideal growing conditions and harvesting the leaves, we’ll cover it all. Whether you’re a seasoned gardener or a beginner with a green thumb, this guide will equip you with the knowledge and tips to successfully cultivate Thai coriander. Get ready to elevate your culinary adventures with the fresh and vibrant Flavors of this versatile herb. Let’s dive in and explore the world of Thai coriander together! Botanical Name is Eryngium foetidum.

The History and Origins of Thai Coriander

Thai coriander, or cilantro, has a rich history that can be traced back thousands of years. This herb is believed to have originated in the Mediterranean region and was later introduced to Asia, where it became an integral part of Thai cuisine. Thai coriander has been cultivated for its leaves, seeds, and roots, each of which has unique culinary and medicinal uses. In Thai culture, this herb is highly valued for its aromatic properties and is often associated with freshness and vitality. Today, Thai coriander is not only popular in Thai cuisine but also widely used in various international dishes.

The flavour of Thai coriander is often described as citrusy and slightly peppery. It adds a refreshing and vibrant element to dishes, making it a Favorite among chefs and home cooks alike. The leaves are the most commonly used part of the plant, while the seeds are often used as a spice in cooking. Thai coriander is known for its ability to enhance the Flavors of other ingredients and bring balance to dishes. With its rich history and versatile flavour profile, Thai coriander has become a beloved herb in kitchens around the world.

Different Varieties of Thai Coriander

Thai coriander comes in various varieties, each with its own unique characteristics. Some of the most popular varieties include:

• Pak Chi Farang: This variety is commonly known as “coriander for foreigners” and is the most commonly used type of Thai coriander. It has large, flat leaves and a strong, citrusy flavour.
• Pak Chi Lao : Also known as “Laotian coriander,” this variety has smaller, more delicate leaves and a milder flavour compared to Pak Chi Farang.
• Pak Chi Vietnam : This variety, as the name suggests, is popular in Vietnamese cuisine. It has long, serrated leaves and a distinct flavour that is slightly sweeter than other varieties.

When selecting a variety of Thai coriander to grow, consider your personal taste preferences and the specific dishes you plan to use it in. Each variety has its own unique flavour profile, so experimenting with different types can help you find the perfect match for your culinary creations.

Growing Thai Coriander: Climate and Soil Requirements

Thai coriander thrives in warm climates and requires plenty of sunlight to grow properly. It is a tropical herb that prefers temperatures between 15°C and 24°C. If you live in a region with colder winters, consider growing Thai coriander in containers that can be moved indoors during the colder months.

In terms of soil, Thai coriander prefers well-draining soil that is rich in organic matter. Before planting, prepare the soil by removing any weeds or debris and adding compost or organic fertilizer. This will help provide the necessary nutrients for healthy growth. It’s also a good idea to test the pH level of your soil and make any necessary adjustments to ensure optimal growing conditions.

Planting Thai Coriander: Seeds vs. Seedlings

Thai coriander can be grown from either seeds or seedlings, depending on your preference and the time you have available. Growing from seeds allows you to have more control over the entire growing process, but it does require more time and patience. If you choose to grow from seeds, start them indoors in seed trays or pots about 6 to 8 weeks before the last frost date in your area. Sow the seeds about ¼ inch deep and keep the soil consistently moist until germination occurs.

On the other hand, growing Thai coriander from seedlings allows you to skip the germination process and get a head start on the growth. Seedlings can be purchased from nurseries or garden centres and transplanted directly into your garden or containers. When planting seedlings, make sure to space them at least 6 inches apart to allow for proper air circulation and growth.

Caring for Thai Coriander: Watering, Fertilizing, and Pruning 

Thai coriander requires regular watering to keep the soil consistently moist but not waterlogged. Water the plants deeply once or twice a week, depending on the weather conditions. Avoid overhead watering, as wet leaves can increase the risk of fungal diseases. Instead, water at the base of the plants to provide moisture to the roots.

Fertilizing Thai coriander with a balanced organic fertilizer once a month can help promote healthy growth and enhance the flavour of the leaves. Be careful not to over-fertilize, as this can lead to excessive foliage growth and a less intense flavour. Pruning the plants regularly by pinching off the tips of the stems will encourage bushier growth and prevent the plants from bolting and going to seed prematurely.

Harvesting Thai Coriander: When and How to Harvest

Thai coriander can be harvested once the plants have reached a height of 4 to 6 inches. The leaves are at their most flavourful and aromatic when harvested young. To harvest, simply use a sharp pair of scissors or garden shears to cut the outer leaves from the plant, leaving the inner leaves intact for continued growth.

It’s important to harvest Thai coriander regularly to encourage new growth and prevent the plants from becoming leggy. Harvesting from the outer leaves will also help improve air circulation and reduce the risk of disease. If you plan to use Thai coriander seeds, allow some of the plants to bolt and go to seed. Once the seed heads have turned brown and dried, cut them off and store them in a cool, dry place for future use.

Culinary Uses of Thai Coriander

Thai coriander is a versatile herb that can be used in a wide range of culinary creations. Its fresh and citrusy flavour pairs well with various ingredients and dishes. Here are some popular culinary uses for Thai coriander:

1. Soups and curries : Thai coriander adds a refreshing and aromatic touch to soups, curries, and stews. It can be added during cooking or used as a garnish.
2. Salads and salsas : The vibrant green leaves of Thai coriander make a beautiful addition to salads and salsas. They add a burst of freshness and a unique flavour to these dishes.
3. Marinades and dressings : Thai coriander can be blended into marinades and dressings to infuse them with its bright and zesty flavour.
4. Stir-fries and noodle dishes : Sprinkle chopped Thai coriander leaves over stir-fries and noodle dishes to add a pop of colour and a refreshing taste.

Experiment with Thai coriander in your Favorite recipes and discover how it can elevate the Flavors of your dishes.

Thai Coriander in Traditional Medicine and Herbal Remedies

In addition to its culinary uses, Thai coriander has a long history of use in traditional medicine and herbal remedies. It is believed to have various health benefits, including:

1. Digestive aid : Thai coriander has been used to soothe digestive issues such as indigestion, bloating, and stomach cramps.
2. Anti-inflammatory properties : The essential oils found in Thai coriander have anti-inflammatory properties that may help reduce inflammation in the body.
3. Antioxidant properties : Thai coriander contains antioxidants that can help protect the body against damage caused by free radicals.

While Thai coriander is not a substitute for professional medical advice or treatment, incorporating it into your diet can provide potential health benefits. As with any herbal remedy, it’s important to consult with a healthcare professional before using Thai coriander for medicinal purposes.

Common Pests and Diseases of Thai Coriander and How to Prevent Them

Like any plant, Thai coriander is susceptible to certain pests and diseases. Some common pests that may affect Thai coriander include aphids, spider mites, and whiteflies. These pests can be controlled by regularly inspecting the plants and using organic pest control methods such as insecticidal soap or neem oil.

Thai coriander can also be prone to fungal diseases such as powdery mildew and damping-off. To prevent these diseases, provide proper air circulation by spacing the plants adequately and avoid overhead watering. If you notice any signs of disease, remove the infected plants or parts immediately to prevent the spread.

Fun Facts and Myths about Thai Coriander

Thai coriander has a rich cultural history and is surrounded by interesting myths and fun facts. Here are a few to pique your interest:

1. Coriander or cilantro? : In many English-speaking countries, the leaves of the Thai coriander plant are referred to as cilantro, while the dried seeds are called coriander. This can lead to confusion in recipes and culinary discussions.
2. Symbol of immortality : In ancient Greek and Roman cultures, coriander was associated with immortality and was often used in rituals and ceremonies.
3. Aphrodisiac properties : Thai coriander has been traditionally believed to have aphrodisiac properties and was used as a love potion in some cultures.

These fun facts and myths add a touch of intrigue to the already fascinating world of Thai coriander.

Conclusion and Final Tips for Growing Thai Coriander Successfully

Congratulations! You’ve now learned everything you need to know about cultivating Thai coriander. From selecting the right variety and preparing the soil to providing the ideal growing conditions and harvesting the leaves, you’re armed with the knowledge and tips to successfully grow this fragrant herb in your own backyard. Remember to choose the variety that suits your taste preferences, provide the optimal growing conditions, and regularly harvest to keep your plants healthy and productive.

Thai coriander is a versatile herb that can elevate your culinary adventures with its refreshing and vibrant flavors. Whether you use it in soups, curries, salads, or herbal remedies, Thai coriander is sure to add a unique and delightful touch to your dishes. So, roll up your sleeves, get your hands dirty, and enjoy the journey of cultivating Thai coriander. Happy gardening and happy cooking!

Thai Coriander: A Taste of Thailand’s Culinary Heritage and How to Incorporate it into Your Recipes