Pull it up at once
Portuguese Goa, April 1736. The Inquisition orders every tulsi plant uprooted.1, 2
The three inquisitors of Goa signed and sealed their edict on Saturday 14 April, and the next day it was read out in the cathedral. Every parish priest in Goa, Salcete and Bardez was to read it from the pulpit, in a loud and clear voice, every Sunday and holy day for two months.1
It was aimed at Goa's Christians. The inquisitors told the viceroy why. The public sentencings at the recent autos-da-fé had made it notorious how many still kept Hindu ways. No Hindu music at weddings. No rice cooked without salt. No fasting on the eleventh day of the moon. Men were not to wear the dhoti, and women were not to wear the choli.1, 2
Then came the plant. Nobody, "even the Portuguese", was to keep tulsi in a house yard, a palm grove or a farm. Wherever it grew, it was to be pulled up at once. Anyone who knew of a Christian breaking these rules had thirty days to denounce them to the Holy Office, on pain of excommunication.1, 2
The viceroy, the Count of Sandomil, approved. He wrote that even if the customs did no harm beyond their likeness to Hindu ones, it would be well to tear out their roots entirely. He meant to back the edict with a decree of his own. The chancellor objected at once. Many of the banned acts were "not directly against the faith", he argued. To have the Inquisition punish the king's subjects for them would be a "grave oppression".3
Sandomil dropped the decree. The edict alone, he told the king that December, was enough to wipe out the customs, "as experience has shown in more than eight months".3
It was a large order for a small plant. Tulsi grew beside almost every Hindu house in India, and had for centuries.4, 5
A plant before every door
Four hundred years earlier, a Franciscan friar had seen it on the same coast. In the early 1320s Odoric of Pordenone landed at Tana, today's Thane, where four friars had been put to death in 1321 for blasphemy against the Prophet.5, 6
"In this country every man hath before his house a plant of twigs as thick as a pillar would be here," Odoric said, "and this never withers as long as it gets water."5
His Victorian editor, Henry Yule, thought the passage mangled in the dictation, but he had no doubt about the plant. It was the sacred tulsi. A Carmelite, Vincenzo Maria, described it in a book of 1672. Before every house it grew on a little walled altar, where people bowed and prayed every day.5
John Fryer, a surgeon for the East India Company, reached India in 1673. In his account, Hindus of the middle sort plastered the ground before their mud houses with cow dung. Beside it they kept "a little place or two built up a Foot Square of Mud". In it grew what Fryer took for calamint, "or (by them called) Tulce, which they worship every Morning, and tend with diligence."7, 8
In 1690 the tenth volume of Hendrik van Rheede's Latin book of the plants of Malabar came out in Amsterdam. One of its basils, with red-brown stems, dark leaves and flowers all year round, stands apart. Of all the kinds it alone is "sacred and dedicated to the god Vishnu". It is so honoured that every Brahmin carries it with him.9
A 17th-century manuscript in Konkani, the language of Goa, describes a festival on the day after the great Diwali. Everyone in the house bathes and sits in a ring round the tulsi, and the neighbours crowd in. The head of the family hands out toasted rice, jaggery, and pieces of coconut and sugar cane. Then they all shout at the foot of the plant, "Goindá, Goindá!"10
Thy heart is like a stone
In the Devi Bhagavata Purana, a Sanskrit text from between the 9th and 14th centuries, Tulasi is the faithful wife of Shankhachuda, a demon king at war with the god Shiva. He could not die while he wore Vishnu's armour and his wife stayed chaste.11, 12
For the gods' sake, Vishnu took the demon's armour and his form and went to her house. Drums sounded at her door. She gave away riches, washed his feet and wept for joy to see her husband home from the war. Then he slept with her, and she knew it was not her husband.11
By that trick, she said, he had taken her virtue and killed her husband. "Thy heart is like a stone," she told the god. "So let Thee be turned into a stone."11
Vishnu answered with a promise. Her body would become the river Gandaki, and her hair the sacred plants named after her, whose leaves the three worlds would offer in worship. Her curse would turn him to stone on the river's bank, where insects with sharp teeth carve rings into the shalagrams, the sacred stones worshipped as him.11
A Sanskrit dictionary of plants, the Rajanighantu, gives tulsi nineteen names. Among them are "beloved of Vishnu", "the purifier", "free of demons" and "ghost-slayer".13
In the 1570s the poet Tulsidas began his Hindi retelling of the Ramayana. In it the monkey hero Hanuman shrinks to a tiny form and creeps through the demon city of Lanka looking for Rama's stolen wife, Sita. He finds a house marked with Rama's emblems, sees some fresh sprigs of tulsi, and is overjoyed. Lanka is home to a gang of demons, he thinks, so how can a pious man live here? Inside, Vibhishan wakes and begins to repeat Rama's name.14
Hardly any smell
Carl Linnaeus named the plant three times. In 1753 he called it Ocimum tenuiflorum, a plant of Malabar whose flowers were so small they could scarcely be seen with the naked eye.15
Fourteen years later, on a single page, he named it twice more. One was Ocimum monachorum, the monks' basil. The other was Ocimum sanctum, the holy one, described from a plant in the garden at Uppsala with dark purple stems, bright purple flowers and "hardly any smell".16
William Roxburgh, a Scottish surgeon and botanist in India, found otherwise. His Flora Indica came out at Serampore in 1832, after his death, and said it always grew in the gardens of Hindu temples, "in flower all the year round". It was "a very grateful smelling plant", he wrote, and "the brahmins hold it sacred to their gods Krishnu and Vishnu."17, 18
Botanists now count all three names as one plant, and the oldest wins, so holy basil is Ocimum tenuiflorum, the slender-flowered basil.19
The shrub goddess of the ghats
Early on 7 December 1844, Fanny Parkes left Raj Ghat at Benares. Her boat was towed past the city's river steps, the ghats, and she stopped now and then to sketch them. A Welsh traveller, she had first come to India in 1822.20, 21
On a small ghat lay Bhim Singh, a giant of black stone. He lay on his back with his crowned head on raised masonry, and at his right side stood a little cone of mud with a tulsi plant on top.20
Beyond him, small ghats rose from the river, each with its own cone-shaped tulsi altar and, beside most of them, a fakir's flag on a long thin bamboo. A man who looked like a begging fakir came down to the water with a pole in one hand and a joint of thick bamboo in the other. From the bamboo, Parkes wrote, "he poured some of the holy stream of the Ganges on the little shrub goddess the tulsi."20
George Birdwood wrote from Bombay in the 1860s that in the villages of the Deccan "the fair Brahminee may be seen every morning". Once she had ground the corn and dressed, she walked round and round the tulsi on its little altar before her husband's home, asking heaven to bless him and his children.22
In 1893 the authors of Pharmacographia Indica reported tulsi even in the European compounds of Calcutta. Hardly a doorkeeper's or an Oriya bearer's hut there was without a pot of it by the door.23
When a Hindu died, his head was washed in water with tulsi leaves and sesame seeds, and a sprig went on his breast for the journey. Whoever destroyed the plant was "abhorred of Vishnu". It could be picked only for worship or medicine, and only with a prayer. "Mother Tulasi," it began, and it went on, "I gather thee for the worship of Narayana."23
Since 5000 BC
The laboratories came late. The oldest paper on the plant in PubMed, the medical index, dates from 1959. In 1981 two researchers published "Anti-stress activity of Ocimum sanctum Linn.", from tests on mice and rats. By 1992 pharmacologists in Delhi were stressing rats by holding them still, some dosed first with the plant, and calling it an adaptogen.24, 25, 26
Online, the plant is far older. Tulsi, the line goes, has been used as medicine since 4000 or 5000 BC, and it is in the Rigveda, the ancient collection of Sanskrit hymns. Wikipedia's article on tulsi in Hinduism says both, and its source for them is a 2019 page by a seller of Ayurvedic products.27, 28
The Rigveda is easy to check. Its whole Sanskrit text is online, and a search of all ten books finds no tulasi. The great Sanskrit dictionary of 1899 knows the word only from the Puranas, which came many centuries later.29, 30
The plant is old all the same. Charaka's medical compendium, compiled between about 100 BC and AD 200, lists among its greens a herb called surasa that "kills foul smells". The Rajanighantu gives surasa as one of tulsi's names. That is two thousand years. It is not 5000 BC.13, 31
The date has a paper trail. In 2005 two researchers at a dental college in Rishikesh began a review of tulsi with a few paragraphs on plants in general. The use of plants as medicine, they wrote, "is as old as 4000–5000 B.C." In India the earliest references appear in the Rigveda, "said to be written between 3500–1600 B.C."32
In 2017 a review from Pakistan cited the Rishikesh paper and gave tulsi a garbled date of its own, "since 400-500 BC", and the Rigveda too. "Earliest references of Tulsi were found in Rigveda (3500-1600 BC)," it said.33
The seller's page is dated 2019 and has both Rishikesh numbers in full, now for tulsi alone. It says tulsi has been used "since 4000 to 5000 B.C." and the Rigveda is "3500 to 1600 B.C old". Wikipedia cites the seller. Followed back, the trail ends at a sentence about plants in general.27, 28, 32
An umbrella in the rain
Goa, October 2025. Families paint their tulsi altars a few days before the plant's wedding to Vishnu. That year the heavy rain ran on into the last week of the month.34
In Chopde, in North Goa, Tina Govekar painted hers herself in a short break in the rain, and put an umbrella over it until the paint dried. Born a Christian, she has kept the rites of the Hindu family she married into for thirty-three years.34
The wedding fell on 2 November. In Vasco, Neeta Honavarkar, also born a Christian, gives the plant turmeric that morning, as for a bride, then marigolds, mango leaves and a red dress. On an island near Vasco, half an hour away by boat, a tulsi altar stands beside a cross. On the wedding morning, Hindus hold the rite at one while Christians hear Mass at the other.34
The trials in people, mostly of mouthwashes and gels, are in the Research tab.35
In 1736 the Holy Office told Goa to pull the plant up at once. In Chopde, a woman born a Christian put an umbrella over its altar until the paint dried.