Meet the Plants: Tulsi (Holy Basil)

The Sacred Adaptogen Ayurveda Calls the Queen of Herbs

With names like Queen of the Herbs and Incomparable One, tulsi, also called holy basil, is an herb for all reasons and all seasons. It's one of the most revered plants in Ayurveda, a system of traditional medicine with thousands of years of recorded use. Modern research has confirmed a wide range of its traditional uses, treating everything from the common cold to chronic stress.

Here you'll find: 

• Tulsi, Botanically Speaking
• Herbs in the Kitchen: Cooking with Tulsi
• The Medicinal Benefits of Tulsi
• Precautions
• Try Our Tulsi Products

Few plants have this much science backing up this much tradition. Here's what's actually behind the reputation.

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Tulsi, Botanically Speaking

Here's the quick rundown:

• Family: Mint (Lamiaceae), like lemon balm, catnip, lavender, and peppermint, and it shares their telltale square stem
  
  
• Growth habit: Small, highly aromatic annual or short-lived perennial, typically reaching about 3 feet
  
  
• Varieties: Because some of the tulsi species hybridize so readily, there are quite a few varieties, all with different flavors and chemical profiles, but all are generally used interchangeably. Traditional Ayurvedic texts focus heavily on Rama and Krishna varieties, whereas, in much of modern Western herbalism, you'll find more Temperate Tulsi.
  
  
  • Rama (Ocimum tenuiflorum/O. sanctum): Leaves that are primarily green with stems that are primarily purple. Mild, cooling, camphor-like, and slightly sweet taste.
  • Krishna (O. tenuiflorum/O. sanctum): Mottled green and purple leaves and stems with a strong, spicy, and peppery taste.
  • Vana (O. gratissimum): Hairy, light green leaves with a strong clove or warm and spicy citrus aroma.
  • Temperate (formerly Kapoor, classification is funky, but generally labeled O. africanum): Compact, highly productive plant with strong clove and cinnamon notes with a distinct sweet aroma that's often compared to bubblegum. 
    
    
• Native range: India and Southeast Asia, thriving in warm, humid climates
  
  
• Not to be confused with: Culinary Italian basil (O. basilicum). They're related, but not interchangeable, in flavor or in medicinal use.
  
  
• Cultural significance: Considered a sacred plant in Hinduism, and often grown right outside the home for daily reverence rather than tucked into a garden bed.

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Cooking with Herbs:
Tulsi as Food

Tulsi leans more towards medicinal use than culinary, but it's earned a permanent spot in our kitchen too. Its flavor is wonderfully dynamic and a little hard to pin down, from Rama's mild sweetness to Krishna's peppery spice to Kapoor's bubblegum-like aroma. Across most varieties, expect some combination of notes of mint, basil, clove, and lemon, with faint hints of chamomile, cardamom, or nutmeg showing up depending on the leaf.

It's also entirely caffeine-free, which in addition to its adaptogenic qualities, is part of why tulsi tea has earned the nickname "liquid yoga," a calming cup without the jolt.

Ways to enjoy tulsi in the kitchen:

• Fresh or dried leaves for tea, on their own for blended with other herbs
• Dried leaves in spice blends, or try tulsi in our Night Shade Finishing Salt
• A handful of leaves added to simmering veggie broth or bone broth
• Fresh sprigs infused in a water bottle throughout the day
• Fresh leaves tossed into a fruit salad
• Infused into vinegar for salad dressings or braising greens
• Try this recipe: Tulsi-Infused No-Bake Lime Cheesecake

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The Medicinal Uses of Tulsi

An Adaptogen, Through and Through

Tulsi is best known as an adaptogen, an herbs that helps the body adapt to and better tolerate stress. Research points to its role in supporting resilience to physical, chemical, metabolic, and psychological stressors, including healthy blood sugar and blood pressure regulation. 

It's also been studied for its calming, mood-supporting effects, with some research comparing its results to standard anti-anxiety approaches.

This is where a cup of tulsi tea also earned its (one of many) nickname as "liquid yoga," and the comparison holds up better than most herbal nicknames do. Part of it is the act of making a cup of tea itself: taking a few minutes to steep and sip a cup of tea is its own small moment of stillness. And then tulsi backs that feeling up chemically.

Like a regular yoga practice, it works on the body's stress response directly, helping protect tissue from chemical and metabolic stress and supporting a more balanced return to baseline afterward. The moment of calm and the adaptogenic effect aren't entirely separate things here, they're working together. 

Immune Support

Regular use of tulsi has been shown to measurably support immune response. Its traditional reputation for immune support also drove a wave of research interest during the COVID-19 pandemic, though findings remain preliminary.

Inflammation & Heart Health

Tulsi's high polyphenol content has been linked to reduced inflammation, including in heart tissue, and animals studies suggest it may help protect lung tissue from inflammatory damage.

Digestive Support

As a warming, carminative herb, tulsi is traditionally used to support healthy digestion, to ease gas, bloating, and cramping. Research also points to antiulcer activity, particularly against stress- and aspirin-induced ulcers.

More Studied Medicinal Benefits of Tulsi

• Joint and musculoskeletal pain, taken internally and applied externally
• Healthy cholesterol levels
• Antiviral activity against herpes simplex virus (HSV)
• Easing seasonal allergy symptoms
• Cognitive clarity and memory support, particularly when paired with other cerebral herbs like rosemary and ginkgo
• Anti-plaque and antibacterial effects against periodontal bacteria, when used as a mouthwash

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Precautions

Daily tulsi in small amounts (as in a cup of tea or a few leave toss into your pesto) is generally well-tolerated, but it isn't without its cautions. High doses have been linked to reduced fertility in both men and women, so medicinal amounts of tulsi are best avoided during pregnancy or while trying to conceive. And it may also affect insulin secretion and blood sugar regulation, worth a conversation with your healthcare provider if you're diabetic and managing insulin.

Since there aren't long-term human studies confirming safety beyond a few months of regular, high-dose use, consider rotating tulsi out for another adaptogen every 2-3 months if you're using it medicinally rather than as an occasional food or tea. 

As always, talk to your healthcare provider before using any herb medicinally, especially if you're pregnant, nursing, or on medication.

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Thousands of years of tradition and a growing pile of modern research both point to the same thing: tulsi is an herb worth having in your corner. We're so glad to have it in ours.

Where to Find Tulsi in Our Pantry

Sage Advice Herbal Tea

Our daily immune-support blend, pairing tulsi with goldenrod, mullein, lemongrass, peppermint, garden sage, and yarrow. Herbaceous and grounding, built for a cup your reach for often. 

Chill Pill Herbal Honey

A jewel-toned herbal honey where tulsi joins three other nervous-system-supporting botanicals: lavender, hibiscus, and ashwagandha. Made for stirring into tea, drizzling over toast ,or eating straight off the spoon.

Night Shade Finishing Salt

Tulsi's fruity, floral note paired with spicy garlic and herbaceous tomato leaf, sprinkled over dinner instead of steeped in a mug. This is garlic salt's sassy sister.

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DISCLAIMER: The information given in this article is intended for educational purposes only.