What Is the Green Herb in Pho? Discovering the Secret Ingredient That Elevates This Vietnamese Classic

Introduction: The Aromatic Allure of Pho

Few dishes capture the soul of Vietnamese cuisine as perfectly as pho. With its aromatic broth, tender slices of meat, silky rice noodles, and vibrant herbs, pho is a symphony of flavor and texture cherished around the world. Among its many components, one element stands out for its freshness and brightness — the green herb served alongside the bowl, often piled high in baskets for diners to add freely. But what exactly are these green herbs? While many assume they’re all the same, the truth is more nuanced: pho’s green garnish is often a combination of herbs, each contributing its own unique profile to the dish.

The Role of Herbs in Pho: More Than Just Decoration

While herbs in pho might seem like mere garnish, they play a vital role in balancing and enhancing the dish. The combination of flavors — rich, savory broth and tender meat — can feel heavy without something fresh and bright to cut through the richness. This is where herbs shine. They add:

• Complex aroma – herbal notes that elevate the fragrance of the soup
• Flavor contrast – peppery, citrusy, or minty tastes that counterbalance the umami broth
• Texture variety – crispness and freshness with each bite
• Customization – personalizing each bowl to your taste

Understanding the green herbs in pho is essential to fully appreciating the dish and enjoying it the way it’s meant to be consumed — fresh, vibrant, and layered.

The Most Common Green Herbs in Pho

While regional and personal preferences vary, there are several green herbs commonly found on Vietnamese pho tables. Let’s explore the key players.

Basil: Not Just the Italian Kind

One of the most misunderstood herbs in pho is basil. However, this isn’t the same sweet basil used in Italian pesto. The basil used in pho is typically Thai basil (Ocimum basilicum var. thyrsiflora), known in Vietnamese as húng quế.

Thai basil has small, pointed leaves with a slight purple hue. It is distinct from sweet (Genovese) and holy basil (used in Thai curries). Its flavor is anise-like or licorice-scented, with a subtle spiciness that stands up well to hot broth.

Why it’s essential: Thai basil adds a warm, aromatic depth that blends beautifully with the spices in the pho broth — star anise, cinnamon, and cloves. Unlike sweet basil, it doesn’t wilt immediately, allowing its flavor to infuse the soup gradually.

Culantro: The Bold Leaf You Might Not Know

While cilantro is more widely recognized, another herb is just as important — culantro (Eryngium foetidum), known in Vietnamese as ngò gai or rau mùi ta.

At first glance, culantro resembles a long, serrated leaf — almost like a large herb patch leaf — and is sometimes confused with cilantro. But its flavor is stronger, more pungent, and earthier. While cilantro is fleeting and citrusy, culantro holds its ground even in hot soup.

Fun fact: Culantro is said to be the herb behind the nickname “stinkweed” in some Caribbean cultures, but in Vietnamese cuisine, its assertive flavor is prized. It adds a sharp herbal kick that balances the fatty richness of beef or chicken.

Cilantro: The Refreshing Touch

More familiar to Western palates is cilantro (Coriandrum sativum), or ngò in Vietnamese. It brings bright, citrusy notes and a clean finish to each bite of pho.

Despite being loved by many, cilantro is also famously polarizing — genetics determine whether it tastes like soap or sunshine. However, in pho, its role is not overpowering. Chopped fine and sprinkled on top, cilantro offers a fresh counterpoint without dominating the palate.

Tip: If you’re sensitive to soap-like flavors, use cilantro sparingly — or try subbing in extra Thai basil for a similar aromatic lift.

Bean Sprouts: The Crunch Factor

While not an herb in the botanical sense, mung bean sprouts (giá) are a staple green topping in every authentic bowl of pho. With their crisp texture and mild, slightly sweet flavor, bean sprouts add a refreshing contrast to the warm, rich broth.

They are often served raw on the side and added just before eating. Chewing into a sprout releases a burst of freshness, cooling the heat of the soup and lightening the overall mouthfeel.

Health Bonus: Bean sprouts are rich in vitamin C, fiber, and antioxidants — a nutritious addition to your bowl.

Mint: The Cooling Agent

Though less common than the others, mint (rau hung) sometimes makes an appearance in pho, especially in southern Vietnamese versions or vegetarian adaptations.

Vietnamese mint (Persicaria odorata) has a sharper, more peppery profile than garden mint, with hints of lemon and clove. More commonly used in salads and rice paper rolls, it occasionally appears in pho garnish baskets to add an extra cooling layer.

The Complete Pho Herb Platter: What You’ll Typically Find

When you sit down to enjoy pho at a traditional Vietnamese restaurant, herbs are not an afterthought — they are presented as a centerpiece. A typical pho herb platter includes:

This platter is not just for show — it’s a toolkit for customization. You’re meant to tear, crush, and add herbs to your bowl according to taste.

How to Use Herbs in Pho: A Guide to Real Authenticity

Eating pho without herbs is like drinking tea without water — incomplete and flat. Here’s how to use the green herbs like a pro:

1. Start with the broth. Take a small sip to appreciate its depth. Then, begin building your flavor profile.
2. Add bean sprouts first if you like crunch. Drop a small handful into the bowl — they’ll soften slightly in the hot soup but still retain texture.
3. Layer in the herbs. Tear Thai basil and culantro leaves gently to release their essential oils. Cilantro can be chopped or left whole. A mix of all three is ideal.
4. Squeeze lime juice. A squeeze of lime brightens the broth and works synergistically with the herbs.
5. Add sliced chilies for heat. Fresh bird’s eye chilies or pickled ones offer a spicy kick that complements the herbal notes.
6. Stir gently and taste. Let the herbs mingle with the heat of the broth for a moment before enjoying.

Pro tip: Don’t dump everything in at once. Add gradually to find your perfect balance. Some prefer a herb-heavy bowl; others like a lighter touch.

Regional Variations in Pho Herbs

Vietnam is long and diverse, and so are its pho traditions. The herbs used can vary significantly between North and South.

Northern Pho (Pho Bac): Subtle and Refined

In Hanoi, where pho originated, the broth is clear, delicate, and lightly spiced. Herbs are used more sparingly to respect the subtle balance of flavors.

Common herbs: Cilantro and a touch of Thai basil are typical. Bean sprouts are rarer — many traditional Hanoi stalls don’t serve them at all.

Culinary philosophy: Northern pho is about purity. The broth must stand on its own, and herbs should enhance, not mask, its elegance.

Southern Pho (Pho Nam): Bold and Generous

In Ho Chi Minh City and surrounding areas, pho becomes more decadent and customizable. The herb platters are overflowing, and diners are expected to load their bowls.

Common herbs: All of the above — Thai basil, culantro, cilantro, bean sprouts — plus lime, chilies, and sometimes banana blossom or sawtooth herb.

Culinary philosophy: Southern pho is an interactive experience. The more herbs and toppings, the better. Flavor explosions are encouraged.

Why the “Green Herb” Confusion Persists

Many Westerners, when asked about the green herb in pho, will say “basil” — and they’re not entirely wrong. But the answer is more complex. The confusion stems from:

• Visual similarity – Thai basil and sweet basil look alike to the untrained eye.
• Labeling in markets – Thai basil is often mislabeled as “Asian basil” or simply “basil”.
• Lack of availability – Outside of Southeast Asian or specialty markets, culantro and authentic Thai basil are hard to find.
• Cultural interpretation – Non-Vietnamese restaurants may simplify the herb platter to cilantro and sweet basil for accessibility.

This oversimplification can result in a less authentic pho experience — one that misses the dynamic herbal interplay so central to the dish.

Cultivating Pho Herbs at Home

Want to elevate your homemade pho? Consider growing your own herbs. Most pho herbs are surprisingly easy to cultivate, even in small spaces.

Thai Basil

Thai basil thrives in warm, sunny conditions. It’s a perennial in tropical climates but can be grown as an annual in cooler regions. Harvest leaves regularly to encourage bushy growth.

Substitution note: If you can’t find Thai basil, lemon basil can work as a substitute, offering citrus notes. Avoid sweet basil — it wilts too quickly and lacks the distinct anise flavor.

Culantro

Also known as “sawtooth coriander,” culantro prefers partial shade and consistent moisture. It’s hardier than cilantro and can be grown indoors or outdoors.

Pro tip: Culantro has a stronger flavor, so use less if you’re new to it. Gradually increase as your palate adjusts.

Bean Sprouts

You can easily grow bean sprouts at home with just mung beans, a jar, and water. Rinse twice daily for 3–5 days until sprouts reach desired length.

Storage note: Keep sprouts cold and consume within a few days for safety and freshness.

Herbs and Health: The Nutritional Benefits of Pho Greens

Beyond flavor, the herbs in pho offer real health benefits:

Thai basil: Contains antioxidants, anti-inflammatory compounds, and essential oils like eugenol, which may support digestion and immunity.

Culantro: Traditionally used in herbal medicine for fever reduction and respiratory support. It’s rich in iron, calcium, and vitamin A.

Cilantro: A natural detoxifier, rich in vitamin K and carotenoids. Some studies suggest it may help lower cholesterol and blood sugar.

Bean sprouts: Low in calories, high in enzymes that aid digestion, and packed with plant-based protein and fiber.

Eating pho with a generous heap of fresh herbs isn’t just delicious — it’s also a nutritious, holistic meal.

Modern Twists on Pho Herbs

Contemporary pho interpretations — from vegan pho to fusion bowls — often experiment with herb combinations. Some chefs introduce alternative greens like:

• Persian mint for a cooler finish
• Perilla leaves for a slightly nutty flavor
• Arugula as a Western substitution for culantro’s peppery bite

While purists may frown, these innovations reflect pho’s global journey and adaptability. The spirit of pho — balance, freshness, and customization — remains intact.

Where to Find Authentic Pho Herbs

To enjoy pho the way it’s meant to be eaten, sourcing the right herbs is key. Here are your best options:

Asian grocery stores: Look for sections labeled “Vietnamese herbs” or “fresh produce.” Thai basil and culantro are often sold bundled in bunches.

Farmers’ markets: In cities with large Asian communities, vendors often sell fresh, locally grown herbs.

Online suppliers: Specialty seed and herb retailers offer live plants or delivery of fresh herbs.

Gardening: Plant a small herb garden with Thai basil and culantro. They grow well in pots on sunny balconies or near kitchen windows.

Conclusion: The Heart of Pho Is in the Greens

The green herb in pho isn’t just one ingredient — it’s a vibrant ensemble of flavors that brings the dish to life. From the licorice warmth of Thai basil to the bold punch of culantro, and the citrus lift of cilantro and lime, each herb plays a vital role in creating pho’s unforgettable taste.

Next time you enjoy a bowl of pho, don’t just add herbs as an afterthought — engage with them. Tear the leaves, inhale their aroma, and appreciate how they transform a simple bowl of soup into a dynamic, aromatic experience. Whether you’re in Hanoi or Houston, the true essence of pho lies not just in the broth, but in the green garnishes that dance across its surface — alive, fresh, and ready to elevate every sip and bite.

What is the green herb typically served with pho?

The green herb most commonly served with pho is Thai basil, known for its sweet, anise-like flavor and vibrant green leaves. Thai basil (Ocimum basilicum var. thyrsiflora) differs from the more familiar sweet basil used in Italian cuisine; it has a sturdier stem, smaller leaves, and a slightly spicier, more pungent flavor profile that complements the rich broth of pho. Unlike sweet basil, Thai basil holds up well to heat, which makes it ideal for adding directly into hot soup without wilting too quickly.

In addition to Thai basil, Vietnamese restaurants often provide other fresh herbs such as culantro (known locally as ngo gai) and mint. These herbs are served on the side, allowing diners to customize the flavor of their pho according to personal preference. The combination of these herbs enhances the overall sensory experience of the dish, adding layers of aroma and taste that are essential to authentic Vietnamese pho. Together, they create a refreshing contrast to the savory, umami-rich broth.

Is cilantro used in pho, and if so, why?

Yes, cilantro (also known as coriander or Chinese parsley) is frequently used in pho, especially in the traditional garnish platter served alongside the bowl. Fresh cilantro leaves are added by diners to introduce a bright, citrusy flavor that cuts through the richness of the broth. Its distinct aroma and slightly peppery taste contribute to the complexity of pho, balancing the deep, spiced flavors of star anise, cinnamon, and charred ginger used in the broth.

The use of cilantro in pho also reflects Vietnamese culinary principles, which emphasize freshness, balance, and harmony of flavors. While not everyone enjoys the taste of cilantro—especially those genetically predisposed to perceive it as soapy—it remains a popular choice due to its ability to uplift the dish. Chefs often include it to provide an extra layer of freshness, encouraging a dynamic eating experience where each spoonful can vary in flavor depending on the herbs added.

What role do fresh herbs play in enhancing the flavor of pho?

Fresh herbs are integral to the pho experience, transforming the dish from a simple noodle soup into a vibrant, aromatic meal. They provide contrasting textures and bold, clean flavors that cut through the fatty components of meat-based broths. The addition of herbs like Thai basil, cilantro, and mint brings a cooling, fragrant quality that complements the warmth of the broth and the tenderness of the meat, making each bite more dynamic and refreshing.

Beyond flavor, the herbs contribute aromatic complexity that evolves as they steep in the hot broth. Volatile oils released from the leaves enhance the fragrance of the soup, stimulating the senses even before the first bite. This multi-sensory dimension is key to pho’s appeal, and is why herbs are not mere garnishes but essential ingredients that invite interaction and personalization. The act of adding herbs allows diners to tailor their bowl, emphasizing freshness and balance.

Can you substitute other herbs for those traditionally served with pho?

While traditional pho herbs like Thai basil, cilantro, and mint are ideal for authenticity, substitutions can be made if these are unavailable. Sweet basil can stand in for Thai basil, though it has a milder, less spicy flavor and may wilt more quickly in hot broth. Parsley, particularly flat-leaf parsley, is a reasonable alternative to cilantro for those who dislike its taste or cannot access it, offering a fresh, grassy note without the polarizing flavor compounds.

For a substitute to mint, some may use lemon balm or even a small amount of dill, though these lack the exact coolness associated with Vietnamese mint. Culantro, which has long, serrated leaves and a stronger flavor than cilantro, is sometimes replaced with extra cilantro if not available. While substitutions affect the overall flavor profile, the key is to use fresh, aromatic herbs that complement rather than overpower the delicate balance of the pho broth.

How should fresh herbs be stored to keep them fresh for pho?

To maintain freshness, herbs for pho should be stored like cut flowers. Trim the ends of the stems and place them upright in a glass with about an inch of water, then loosely cover the leaves with a plastic bag and keep at room temperature away from direct sunlight. This method works especially well for Thai basil and cilantro, preserving their crispness and aroma for up to a week. Make sure to change the water every few days to prevent bacterial growth.

Alternatively, if refrigeration is preferred, wrap the herbs in a slightly damp paper towel and place them in a resealable plastic bag in the crisper drawer. This technique helps retain moisture and prevents wilting, though some herbs like Thai basil may bruise or darken in cold temperatures. Regardless of method, avoid washing herbs until just before use to minimize spoilage. Proper storage ensures that the herbs remain vibrant and fragrant, ready to elevate a bowl of pho with maximum freshness.

Are the herbs in pho used for health benefits as well as flavor?

Yes, the herbs commonly served with pho are not only prized for their flavor but also valued in Vietnamese culture for their potential health benefits. Thai basil contains essential oils like eugenol and linalool, which have antioxidant and anti-inflammatory properties. Cilantro has been studied for its ability to help detoxify heavy metals and support digestive health due to its natural compounds that stimulate enzyme production and aid in digestion.

Mint and culantro also contribute medicinal qualities; mint soothes the stomach and may relieve bloating, while culantro has traditionally been used to promote circulation and ease respiratory discomfort. In Vietnamese cuisine, the inclusion of fresh herbs in daily meals is often linked to a holistic approach to wellness, where food and medicine are intertwined. While pho is not a substitute for medical treatment, the fresh herbs enhance not just the taste but also the nourishing, restorative nature of the dish.

When should herbs be added to pho for the best taste?

Herbs should be added to pho just before eating, directly into the hot broth, to preserve their freshness and maximize flavor impact. Adding them at the table allows the diner to control the quantity and combination, ensuring the herbs are not overcooked or muted by prolonged heat. As the herbs steep slightly in the broth, their essential oils infuse the soup with fragrance and taste, while still maintaining a crisp, bright quality.

Timing is crucial—adding herbs too early, such as during cooking, can result in loss of aroma and texture. Thai basil and mint, in particular, release their best flavors when fresh and barely wilted. The gradual incorporation of herbs with each bite also prolongs the sensory experience, letting the flavors unfold over time. This interactive element is part of what makes pho a deeply satisfying and customizable meal.