Tulsi (Holy Basil): Tulsi Water, Tea, Growing Tips and Cautions
Every morning, before the kettle went on, somebody in the house poured a small lota of water at the base of the tulsi pot in the courtyard and plucked three or four leaves on the way back in. This is a guide to that plant: how to brew it, how to keep it alive, and the few situations where it’s better left in the pot.
The short version
- Plant: Tulsi, holy basil (Ocimum tenuiflorum), not the Italian basil sold for pasta
- Common types: Rama (green), Krishna or Shyama (purple), Vana (wild, lemony)
- Everyday amount: 8 to 12 fresh leaves, or 1 level teaspoon dried, per cup
- How often: one or two cups a day as a household drink, with breaks
- Skip it if: pregnant, trying to conceive, on blood thinners, or two weeks before surgery
Prefer to listen? This post as a 4 min video · Watch on YouTube
A plant that lived in the middle of the house
Tulsi was never a kitchen herb in the way dhania is. It sat on a raised brick or clay stand, the tulsi chaura, right in the angan where sunlight fell longest. It was watered at dawn and a small diya was lit beside it at dusk. Children were told not to pluck leaves after sunset. Grandmothers said the plant was sleeping.
There’s a practical logic under the ritual. A plant watered every single morning and kept in full sun stays bushy and healthy. A plant that isn’t stripped at night gets to rest. Tradition and good gardening often point the same way.
The smell is the giveaway if you’re unsure what you’ve bought. Rub a leaf between two fingers. Real tulsi smells of clove and pepper with a slightly camphor edge, much sharper than sweet basil. The leaves are smaller, a little hairy, and the stems of Krishna tulsi are dark purple.
Tulsi is a gentle kitchen plant in small amounts, but it isn’t neutral. It may slow blood clotting a little, so anyone taking warfarin, clopidogrel, daily aspirin or similar medicine should not start regular tulsi tea without checking with the doctor who prescribes it. Stop tulsi drinks about two weeks before any planned surgery or dental extraction.
Traditional households kept tulsi away from women who were expecting or trying for a baby, and that caution has never been properly settled. Take it seriously. During pregnancy, while trying to conceive (for either partner), and while breastfeeding, a leaf in food is fine, but daily tulsi tea or concentrated drops are not something to take on your own. If you take medicine for diabetes or thyroid, mention tulsi at your next appointment before making it a daily habit. Tulsi extract capsules and drops are far stronger than a few leaves in water. Keep them out of reach of children.
Tulsi water and tulsi tea, done properly
People use “tulsi water” to mean two different things. One is a light cold infusion, the leaves left to sit. The other is a hot brew, closer to a tea. Both are easy. The mistake most people make is boiling the leaves hard for ten minutes, which drives off the aromatic oils and leaves you with bitter green water.
Cold tulsi water (overnight)
- Pick 6 to 8 fresh leaves in the morning. Rinse them in a bowl of water, not under a hard tap.
- Bruise them lightly between your palms. Don’t tear them to shreds.
- Drop them into 500 ml of clean drinking water in a glass or steel jug.
- Cover and leave at room temperature for 6 to 8 hours, or in the fridge overnight.
- Strain and drink through the day. Make a fresh batch daily and throw out what’s left by evening.
Hot tulsi tea (one mug)
- Bring 250 ml water to a boil, then take it off the heat and let it sit 1 minute (it drops to roughly 90°C).
- Add 10 to 12 fresh leaves, or 1 level teaspoon dried tulsi.
- Cover the mug with a saucer. The cover matters, it holds the scent in.
- Steep 5 minutes for fresh leaves, 4 minutes for dried.
- Strain. Add a thin slice of ginger or a squeeze of lemon if you like. Honey can go in once the tea is warm rather than hot, but never give honey to a baby under one year old.
If you want the milky version with ginger and black tea, the method is different, and it’s written out in our adrak tulsi chai recipe.
A winter variation
For a cold evening, add 2 crushed black peppercorns and 1 green cardamom pod to the hot tea before covering. Keep it to one mug. Peppery tulsi is warming, and more than that tends to leave some people with a dry throat. Our guide to kali mirch covers why a little goes a long way.
What elders believed about tulsi
In Ayurveda, tulsi is pungent and bitter in taste, heating in effect, and was used to settle excess kapha, the heavy, damp quality people associate with the cold season. Ritucharya, the practice of eating according to season, puts tulsi at its most useful in the monsoon and early winter. Unani practitioners know the related basils as raihan or firanjmushk and generally class them as hot and dry, which is why they were paired with cooling foods and not taken in large amounts in peak summer.
In ordinary homes, tulsi was used more simply. A few leaves went into the kahwa pot when someone had a scratchy throat. Leaves were dropped into stored drinking water. A sprig was tucked beside the pillow of a restless child. None of that is proof of anything medical. It’s a record of what families found comforting.
Water it at dawn, don’t pluck it at night, and pinch the flowers before they set seed.
Growing tulsi that doesn’t die in December
Tulsi is a warm-weather plant. It sulks below 15°C and blackens with frost. In most of Pakistan and North India it grows happily from March to October and then needs protection. In Karachi, Chennai or Colombo it can live for years outdoors.
From seed
- Sow in spring once nights stay above 18°C. Fill a 15 cm pot with two parts garden soil, one part compost and one part sand.
- Scatter 10 to 15 seeds on the surface. Press them in gently. Tulsi seed needs light to sprout, so cover with no more than 2 to 3 mm of fine soil.
- Mist with water. Keep the pot in a warm, bright spot, ideally around 25°C.
- Expect sprouts in 7 to 14 days. Keep the surface just damp, never soggy.
- When seedlings have four true leaves, keep the strongest two or three and move each to its own 20 to 25 cm pot.
Keeping it bushy
Tulsi wants at least five or six hours of direct sun. Water when the top 2 cm of soil feels dry, which in June might be daily and in November twice a week. The single most useful habit is pinching off the flower spikes, the manjari, as soon as they appear. A plant allowed to flower freely puts its energy into seed, the leaves turn small and tough, and it can go woody and die by autumn.
When nights fall below 10°C, bring the pot indoors to a sunny window, or wrap the plant loosely in muslin at night. Yellow lower leaves in winter usually mean cold roots and too much water, not hunger. Cut back on watering.
Want a new plant fast? Cut a 10 cm tip, strip the lower leaves, and stand it in a glass of water on a windowsill. Roots usually appear within two weeks.
Buying and storing tulsi
| Form | What good looks like | Keeps for |
|---|---|---|
| Fresh sprigs | Firm leaves, strong clove smell, no black spots | 3 to 4 days, stems in water |
| Dried leaves | Green to olive, still fragrant when crushed | 6 months, airtight, dark |
| Tea bags | Ingredient list says tulsi first, no added “flavour” | Check the date |
| Seeds | Small, black, packed within the last year | 1 to 2 years, cool and dry |
To dry your own, pick leaves in the late morning when they’re dry, spread them on a cloth in a shaded, airy room, and turn them daily. They’re ready in 4 to 6 days when they crumble. Direct sun bleaches them and burns off the scent. Dried tulsi that smells of nothing but hay is past its best, and so is anything sold loose that looks brownish and dusty.
Don’t confuse tulsi seed with tukh malanga (sabja), the seed that swells in falooda. Sabja comes from sweet basil. It’s a different plant.
Myths and what’s actually true
“Never chew tulsi leaves, swallow them whole.” This one is repeated with a scientific-sounding reason about mercury damaging teeth. Tulsi leaves don’t contain mercury. The more likely root is religious: the plant is sacred, so it isn’t chewed. Swallowing or chewing a leaf or two is a matter of family custom, not safety.
“More leaves, more benefit.” No. Tulsi is aromatic and heating. A small handful a day is the traditional scale. Eating 30 or 40 leaves won’t make you healthier and can upset the stomach.
“It’s a plant, so it can’t interact with medicine.” Plants interact with medicine all the time. That’s exactly why the caution above exists.
“Tulsi purifies the air of a whole house.” A pot plant freshens a corner and is lovely to have near a door. It doesn’t replace ventilation.
For more everyday plants and spices from the same shelf, browse our Desi Remedies section, or read our pieces on pudina and curry leaves, two other plants that grow well on a sunny balcony.
Can children drink tulsi tea?
A few sips of mild tulsi tea, made with 4 or 5 leaves, has long been given to school-age children in desi homes. Don’t give tulsi extracts, drops or capsules to children at all. For a baby, don’t give any herbal drinks without asking the child’s doctor.
Should I stop tulsi before an operation?
Yes. Stop daily tulsi tea about two weeks beforehand and tell the surgeon or dentist you were drinking it.
Is purple Krishna tulsi stronger than green Rama tulsi?
Krishna tulsi tastes more peppery and slightly more bitter. Rama is milder and sweeter. Use whichever you enjoy. Keep to the same everyday amounts either way.
My tulsi plant has black spots and sticky leaves. What happened?
Usually aphids or mealybugs. Wash the plant with a jet of water, then wipe leaves with a solution of 1 teaspoon mild liquid soap in 1 litre water. Rinse after an hour. Don’t eat leaves for a week afterwards.
Is tulsi the same as regular basil?
No. Tulsi is holy basil, Ocimum tenuiflorum, with smaller, slightly hairy leaves and a sharp clove and pepper smell. The sweet basil sold for pasta is a different plant, and sabja seeds for falooda come from sweet basil, not tulsi.
Can I drink tulsi tea every day?
One or two cups a day as a household drink, with breaks, is the traditional scale, using 8 to 12 fresh leaves per cup. More is not better. Check with your doctor first if you take blood thinners, diabetes or thyroid medicine.
Is tulsi tea safe during pregnancy?
A leaf in food is fine, but daily tulsi tea or concentrated drops are not something to take on your own while pregnant, trying to conceive or breastfeeding. Traditional households kept it away at these times, and that caution has never been settled.