The Tuberose (Rajnigandha) Explained

The tuberose (Agave amica, long known as Polianthes tuberosa), called rajnigandha in Hindi, is a perennial bulbous plant that bears tall spikes of waxy, white, intensely fragrant flowers, and it is grown across India for garlands, cut-flower bouquets, ritual offerings and the perfume industry. Native to Mexico, the tuberose arrived in India centuries ago and is now cultivated commercially in states such as West Bengal, Tamil Nadu, Karnataka, Maharashtra and Uttar Pradesh.

The Hindi name rajnigandha means “fragrance of the night”, and the plant earns it, because its scent grows stronger after sunset. This article explains what the tuberose is, how it is grown, what its flowers are used for, how it is processed into perfume, and how to cultivate it at home.

Quick Facts

Key Takeaways

• Tuberose is a Mexican bulbous plant of the Asparagaceae family that is called rajnigandha, meaning “fragrance of the night”, in Hindi.
• The waxy white flowers of the tuberose open in sequence from the bottom of a spike upward and are most strongly scented in the evening and at night.
• Tuberose is cultivated in India both as loose flowers for garlands and decoration and as long cut spikes for bouquets and floral arrangements.
• Tuberose flowers are a prized raw material in perfumery, where the flowers are processed with solvents to yield a concrete and an absolute.
• Tuberose is grown from underground rhizomatous bulbs, flowers within a few months of planting and is replanted every few years to maintain yields.
• West Bengal, Tamil Nadu and Karnataka are among the leading Indian states for tuberose cultivation.

What is the tuberose and what does rajnigandha mean?

The tuberose is a herbaceous perennial that grows from a fleshy underground stem and sends up a tall, slender flower spike carrying many white funnel-shaped flowers. Rajnigandha is its Hindi name, formed from rajni (night) and gandha (fragrance), and similar names such as rajanigandha are used in Bengali, Marathi and other languages.

The plant forms a tuft of narrow, grass-like, bright green leaves, and the flower spike rises from the centre to a height of roughly 60 to 120 centimetres, depending on the variety. The individual flowers are about five to six centimetres long, waxy in texture and arranged in pairs along the upper part of the spike. The buds are often tinged with pink or green before opening.

Botanists long classified the plant in a small genus called Polianthes, and that name remains in older books and nursery catalogues. Modern studies of plant relationships have placed these species within the genus Agave, which is why the current accepted name for the tuberose is Agave amica. The plant is therefore a relative of the century plant and sisal, although its appearance is very different.

Where does the tuberose come from and how did it reach India?

The tuberose comes from Mexico, where it was cultivated before European contact, and it reached India and other parts of Asia after Spanish and Portuguese trade carried it across the world from the sixteenth century onward. It is a cultivated plant, and truly wild populations are rare or uncertain.

After its introduction to Europe, the tuberose became a fashionable fragrance flower and then spread widely through trade routes. In India it settled well because the warm climate suited its growth and because Indian culture already prized fragrant flowers for worship, weddings and personal adornment. Over time, regional growers developed local types and cultivation methods.

Today the plant is so well established that many Indians regard it as a traditional flower. It sits alongside jasmine, marigold and rose as a staple of the Indian flower market, even though its origins lie across the Atlantic.

What are the main types and varieties of tuberose grown in India?

The main types of tuberose grown in India are single, semi-double and double, distinguished by the number of petal layers in each flower, and growers also cultivate variegated-leaf forms. Single types have the strongest fragrance and are favoured for scent extraction, while double types look fuller and are favoured for cut flowers.

Indian research institutes have released improved tuberose varieties, with names such as Shringar, Prajwal, Suvasini and Vaibhav, bred for higher flower yield, longer spikes or better suitability for specific uses. Older regional types, often named after cities such as Calcutta, remain popular among growers.

Why is the tuberose so fragrant at night?

The tuberose is so fragrant at night because its flowers release most of their scent after dusk, a pattern that attracts night-flying moths, which are the plant’s natural pollinators. The fragrance is a mixture of many aromatic compounds, including esters such as methyl benzoate, and its deep, sweet, creamy character is difficult to reproduce.

Flowers on a spike open in sequence, starting from the lowest and moving upward over about one to two weeks. In the evening, the open flowers can scent an entire courtyard, and this is the reason many Indian households plant a few tuberoses near a window or doorway. Some people find the scent heavy, particularly in a closed room, and may prefer to keep cut flowers outdoors or in a well-ventilated space.

The scent of the tuberose is regarded in the perfume industry as a classic white floral note. It has been used in French perfumery for a long time, and it also appears in the traditional Indian practice of making flower-scented products, though the heaviest industrial use is in modern perfumery.

How is the tuberose used in India?

The tuberose is used in India for garlands and decoration, for cut-flower spikes in bouquets and arrangements, for religious offerings, and as a raw material for fragrances. Demand rises sharply during wedding seasons and festivals.

• Loose flowers: Individual flowers are sold by weight in local markets and strung into garlands, hair adornments and venue decoration.
• Cut spikes: Long spikes are bundled and sold to florists for vases, stage decor and bouquets, and they last for several days in water.
• Religious offerings: The flowers are used in temples and home shrines in many regions, though practices vary by tradition and locality.
• Perfumery and aromatics: The flowers are processed to make concrete and absolute for fine fragrance and flavour work.
• Ornamental gardening: Home gardeners plant tuberose for evening fragrance in beds and pots.

Cut flower trade

In the cut-flower trade, the long straight spikes, especially of the double types, are valued for their height and fragrance. Large flower markets in cities such as Kolkata, Bengaluru, Chennai, Mumbai and Delhi receive daily supplies from nearby growing districts. Because the flowers are perishable, they are usually harvested in the evening or early morning and sold quickly.

How is tuberose perfume made?

Tuberose perfume material is made by extracting the scent from fresh flowers with solvents to produce a waxy concrete, which is then treated with alcohol to produce an absolute used by perfumers. The process is used because the delicate fragrance of the flower is easily damaged by the heat used in ordinary steam distillation.

Main stages

• Flowers are picked at the right stage of opening and delivered to the extraction unit quickly.
• The flowers are soaked in a volatile solvent, which dissolves the fragrant compounds along with natural waxes.
• The solvent is evaporated to leave a solid, aromatic concrete.
• The concrete is washed with alcohol, filtered and concentrated to give the absolute.

Tuberose absolute is among the more expensive natural perfume materials, because a very large quantity of flowers is needed to obtain a small quantity of absolute. Traditional methods such as enfleurage, in which flowers are laid on fat to absorb their fragrance, have also been used, but modern production mostly relies on solvent extraction. Indian perfumery has a long tradition of floral attars, with Kannauj in Uttar Pradesh well known for these, though tuberose-based products are only one part of this wider heritage.

How do you grow tuberose in India?

Tuberose is grown by planting healthy rhizomatous bulbs in a sunny spot with well-drained soil, and it flowers about three to four months after planting under good conditions. It is a relatively easy crop that suits both home gardens and field cultivation.

• Planting material: Plump, disease-free bulbs or bulblets are planted about 5 cm deep, with enough space between them for clumps to multiply.
• Soil: Sandy loam or loam with good drainage and organic matter; heavy waterlogged soil encourages rot.
• Sunlight: Full sun is best; the plant sulks and flowers poorly in deep shade.
• Planting time: In much of India, spring planting is common; in warm southern regions planting can be staggered through the year to spread harvests.
• Watering: Regular but moderate; irrigation is reduced when the plant is dormant.
• Feeding: Compost and balanced fertiliser support flowering, and growers apply nutrients in several doses.
• Staking and harvest: Tall spikes may need support; spikes are cut when the lowest pair of flowers is about to open.

Ratooning and replanting

A tuberose planting can remain productive for around three years, during which the clumps keep producing new bulbs and flower spikes. Yields eventually decline as clumps become crowded, so growers lift the bulbs, separate them and replant in fresh ground. Rotation with other crops helps break the cycle of soil-borne pests.

Pests and diseases

Common problems include thrips, mites and caterpillars on the leaves and buds, root-knot nematodes in the soil, and fungal diseases such as leaf spot and rot during wet weather. Growers rely on healthy planting material, good drainage, crop rotation and timely control measures recommended by agricultural extension services.

Why does tuberose matter to Indian farmers and the flower economy?

Tuberose matters to Indian farmers because it gives a steady cash income from a small area of land, flowers over a long season and sells readily in nearby urban markets. It is part of the wider loose-flower sector, which also includes marigold, jasmine, chrysanthemum and rose.

The crop is well suited to small and marginal farmers, because it can be grown on small plots, requires modest capital and supports daily or near-daily harvests. Families often provide the labour for picking, sorting and tying, and the flowers can be sold by weight to local traders or direct to florists.

Prices change considerably with festival and wedding seasons, and growers who can time their harvests to peak demand earn more. The perishability of the flowers is a continuing challenge, and cold storage, better packaging and quick transport are areas where many growers and market organisations are working to reduce losses. Value addition through concrete and absolute production offers another route, although it requires investment and quality control that smaller growers usually access through cooperatives or contracts with processing units.

How should cut tuberose be handled so that it lasts longer?

Cut tuberose lasts longer when stems are recut, placed in clean water immediately and kept in a cool, shaded spot away from ripening fruit and direct heat. A spike in a vase can stay attractive for roughly a week, with lower flowers fading first as upper buds continue to open.

• Cut the base of the stem at an angle and remove leaves that would sit below the waterline.
• Use clean water and change it every day or two.
• Keep the vase out of direct sun and away from fans and heaters.
• Remove spent flowers from the bottom of the spike to keep the arrangement tidy.
• Place in a ventilated room, since the fragrance can feel overpowering in a small closed space.

Bottom Line

The tuberose, or rajnigandha, is a Mexican bulbous plant that has become a staple of Indian flower markets and gardens. Its night-fragrant white spikes serve garlands, bouquets and the perfume trade, and it remains a reliable income crop for flower growers across the country.

Frequently Asked Questions

What is rajnigandha called in English?

Rajnigandha is called tuberose in English, and its scientific name is Agave amica, formerly Polianthes tuberosa. The Hindi name means “fragrance of the night”, reflecting the way the flowers smell strongest after dark.

Is the tuberose native to India?

No, the tuberose is not native to India; it comes from Mexico. It reached India and other parts of Asia through trade and plant exchange after the sixteenth century, and it is now widely cultivated in many Indian states.

Why does rajnigandha smell stronger at night?

Rajnigandha smells stronger at night because its flowers release more of their scent after dusk to attract night-flying moths that pollinate them. The fragrance is a blend of aromatic compounds and is regarded as a classic white floral note in perfumery.

How long does it take for tuberose to flower?

Tuberose usually flowers about three to four months after the bulbs are planted, depending on variety, season and growing conditions. A planting generally stays productive for around three years before the clumps need to be lifted, divided and replanted.

Which Indian states grow the most tuberose?

West Bengal, Tamil Nadu and Karnataka are among the leading Indian states for tuberose cultivation, and it is also grown in Maharashtra, Andhra Pradesh, Telangana, Uttar Pradesh and Gujarat. Growers usually supply nearby city flower markets with loose flowers and cut spikes.

Can the tuberose be grown at home in a pot?

Yes, the tuberose can be grown in a deep pot of well-drained soil placed in a sunny spot, and several bulbs per large pot give a good display. Water moderately, feed lightly and expect the first spikes within a few months of planting.

{“@context”:”https://schema.org”,”@graph”:[{“@type”:”FAQPage”,”mainEntity”:[{“@type”:”Question”,”name”:”What is rajnigandha called in English?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Rajnigandha is called tuberose in English, and its scientific name is Agave amica, formerly Polianthes tuberosa. The Hindi name means “fragrance of the night”, reflecting the way the flowers smell strongest after dark.”}},{“@type”:”Question”,”name”:”Is the tuberose native to India?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”No, the tuberose is not native to India; it comes from Mexico. It reached India and other parts of Asia through trade and plant exchange after the sixteenth century, and it is now widely cultivated in many Indian states.”}},{“@type”:”Question”,”name”:”Why does rajnigandha smell stronger at night?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Rajnigandha smells stronger at night because its flowers release more of their scent after dusk to attract night-flying moths that pollinate them. The fragrance is a blend of aromatic compounds and is regarded as a classic white floral note in perfumery.”}},{“@type”:”Question”,”name”:”How long does it take for tuberose to flower?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Tuberose usually flowers about three to four months after the bulbs are planted, depending on variety, season and growing conditions. A planting generally stays productive for around three years before the clumps need to be lifted, divided and replanted.”}},{“@type”:”Question”,”name”:”Which Indian states grow the most tuberose?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”West Bengal, Tamil Nadu and Karnataka are among the leading Indian states for tuberose cultivation, and it is also grown in Maharashtra, Andhra Pradesh, Telangana, Uttar Pradesh and Gujarat. Growers usually supply nearby city flower markets with loose flowers and cut spikes.”}},{“@type”:”Question”,”name”:”Can the tuberose be grown at home in a pot?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Yes, the tuberose can be grown in a deep pot of well-drained soil placed in a sunny spot, and several bulbs per large pot give a good display. Water moderately, feed lightly and expect the first spikes within a few months of planting.”}}]}]}