Tuberose, commonly known as Rajnigandha, is one of the most popular and fragrant flowers cultivated in India. Its pleasant scent and long vase life make it a favorite for garland making, floral decorations, and perfume industries. It is also a profitable flower crop for farmers, especially in states like Karnataka, Tamil Nadu, West Bengal, Andhra Pradesh, and Maharashtra. Successful tuberose cultivation depends on good soil, proper planting, and timely care.
1. Climate and Soil Requirements
Tuberose grows well in warm and humid climates. The ideal temperature for growth ranges between 20°C and 30°C. It does not tolerate frost or extreme cold, so it should be planted after the winter season in cooler regions. Moderate rainfall or irrigation is enough, as excess water can damage bulbs.
The best soil for tuberose is well-drained sandy loam or loam soil rich in organic matter. Avoid heavy clay or waterlogged soils. The soil pH should be between 6.5 and 7.5 for healthy growth.
2. Varieties
Some popular varieties grown in India are:
Single-flowered types: Shringar, Prajwal, Calcutta Single – used mainly for garlands and perfumes.
Double-flowered types: Suvasini, Pearl Double – ideal for floral arrangements and cut flowers.
Semi-double types: Vaibhav, GK-Tall – grown for both commercial and decorative purposes.
3. Land Preparation and Planting
Prepare the field by ploughing 2–3 times to make the soil fine and loose. Mix 20–25 tonnes of well-decomposed farmyard manure (FYM) per hectare during the last ploughing. The land should be leveled and free from weeds.
Tuberose is propagated through bulbs. Select medium-sized healthy bulbs (1.5–2.0 cm diameter) for uniform flowering. Before planting, treat bulbs with a fungicide like carbendazim (0.2%) to protect them from fungal diseases.
Planting time varies by region:
February–March in North India
April–May in South India
July–August in areas with moderate rainfall
Bulbs are planted 5–6 cm deep with 30 cm spacing between rows and 20 cm between plants.
4. Fertilizer and Irrigation Management
Apply fertilizers at the rate of 100 kg nitrogen (N), 50 kg phosphorus (P₂O₅), and 50 kg potassium (K₂O) per hectare. Half of nitrogen and the full dose of phosphorus and potassium should be given at planting. The remaining nitrogen should be applied in two equal splits after 45 and 90 days.
Tuberose needs regular irrigation for good flowering. Provide water once every 7–10 days, depending on weather and soil conditions. Avoid overwatering, as it may cause bulb rot.
5. Intercultural Operations
Regular weeding and soil loosening are important for proper aeration and nutrient uptake. Earthing up around the plants after 45 days helps support the stems and prevents lodging.
6. Pest and Disease Management
Common pests include thrips, aphids, and caterpillars, which can be managed using neem oil or suitable insecticides. Diseases like stem rot and leaf spot can be controlled by spraying fungicides like mancozeb or carbendazim at regular intervals.
7. Harvesting
Tuberose flowers start blooming about 90–100 days after planting. Spike harvesting should be done in the morning or evening when the lower 2–3 florets are open. For perfume extraction, fully opened flowers are collected separately.
Conclusion
Tuberose cultivation offers a steady income for farmers due to its high market demand and year-round flowering potential. By choosing good-quality bulbs, maintaining balanced fertilization, proper irrigation, and pest control, farmers can achieve high yields of fragrant and marketable flowers. With the right care, tuberose farming can become a sustainable and profitable venture for both small and large growers in India.
