Vanilla is a realistic but risky crop in Kerala, Karnataka (Kodagu, Chikkamagaluru, Shivamogga, Uttara Kannada) and the Nilgiris of Tamil Nadu, where it is usually grown as an intercrop under coconut or arecanut shade. It needs 21 to 32 degrees C, well-distributed rain with a short dry spell, a living support, and every flower hand-pollinated within hours of opening. The vine takes about 3 years to bear, the beans need 4 to 5 months of curing, and prices have swung from boom to bust more than once.
The Indian crop is tiny: Spices Board and DASD statistics show about 147 hectares and 67 tonnes of production in the latest year available (2023-24 estimate), a yield of about 456 kg per hectare. Do not plant it on the strength of a nursery's income promise. Plant it only if you can do the labour yourself and have a buyer for cured beans.
Climate, soil and where it fits
TNAU lists rainfall of 150 to 300 cm (well distributed over about 9 months with a 3-month dry period), temperature 21 to 32 degrees C, and elevation of 700 to 1,500 m above sea level. Vanilla needs light shade, a loose, humus-rich, well-drained soil and a mulch layer, because the roots grow along the surface. Waterlogging invites root rot. Hot, dry, open plains without irrigation and shade are unsuitable.
Planting material and spacing
Vanilla planifolia is propagated by stem cuttings of 60 to 120 cm (a cutting with 10 to 12 nodes is preferred). TNAU gives spacing of 2.0 to 2.5 m x 1.2 to 1.5 m in the plains and 1.5 m x 1.5 m on hill slopes. That is roughly 1,100 to 1,700 vines per acre (2,700 to 4,200 per hectare) on the plains spacing and about 1,800 per acre (4,400 per hectare) on the hill spacing. Place two nodes below the soil and the rest against a support such as live Gliricidia or other shade trees. Train the vine to 1.2 to 1.5 m before letting it hang or loop, which promotes flowering. Spices Board studies on about 450 plots in Kerala, Karnataka and Tamil Nadu found stem cuttings and tissue-culture plantlets similar in eventual productivity, so you need not pay extra for tissue culture.
Nutrition and care
TNAU advises 40 to 60 g N, 20 to 30 g P and 60 to 100 g K per vine per year, in 2 to 3 split applications, plus a monthly foliar spray of 1% NPK (17:17:17). On a per-acre basis at 1,500 vines this is roughly 60 to 90 kg N, 30 to 45 kg P and 90 to 150 kg K per year. Mulch 2 to 3 times a year with pruned plant material. Keep shade moderate and irrigate in the dry months, but drain well. Consult your KVK for a soil-test-based schedule.
Pollination
Vanilla in India does not set pods without hand pollination. Flowers open for a single day, and TNAU gives the working window as 4 am to 1 pm. A vine carries 10 to 20 inflorescences, and 5 to 6 flowers on the lower side of each are pollinated. A trained worker does 1,000 to 1,500 flowers a day. This is the main labour cost and the reason small, family-run plots do best.
Diseases
- Root and stem rot (Fusarium oxysporum f. sp. vanillae) is described as the most serious disease in vanilla gardens. It starts at the base and can spread to the beans.
- Bean rot (Phytophthora meadii) and bean shedding and stem rot (Colletotrichum vanillae) cause pod loss in wet weather.
- Prophylactic sprays include 1% Bordeaux mixture or 0.2% copper oxychloride, and Trichoderma harzianum is widely used against soil-borne disease. IISR work has also reported biocontrol agents such as Bacillus and Paecilomyces in lab and pot studies. Use clean planting material, good drainage and follow your KVK's current advice.
Harvest, curing and yield
Pods are ready 6 to 9 months after pollination. Harvest when the tip begins to turn yellow, then cure for 4 to 5 months to develop the flavour. About 6 kg of green pods make 1 kg of cured beans. TNAU gives an average of 300 to 600 kg of cured beans per hectare per year (about 120 to 240 kg per acre), and vines remain productive for 12 to 14 years. The official all-India yield estimate of about 456 kg per hectare is consistent with that range. Curing is a skill; poor curing ruins the beans, so many growers sell green pods or hire a curer.
Cost and returns
No current, verified Indian cost-of-cultivation or farm-gate price for cured beans was found, so no profit figure is given. What can be stated:
| Item | Figure |
|---|---|
| Cured bean yield per acre | about 120 to 240 kg (TNAU average, mature vines) |
| Green pods needed | about 720 to 1,440 kg (6:1) |
| India export price, 2023 | US$166 to 235 per kg (Tridge) |
| India export price, 2024 | US$43 to 165 per kg (Tridge) |
The export price range is a trade-data aggregator's figure for shipments, not what a farmer is paid, and it shows how fast prices can fall in a single year. For rough scale only, 120 kg at US$43 is about US$5,200 per acre, and 240 kg at US$165 is about US$39,600, a spread of nearly eight times; the realistic farm-gate result will be below the export figure. Before planting, ask for the last three years' prices actually paid in your district.
Market and the history you should know
- Green beans sold for about ₹3,500 per kg in 2003 and had fallen to about ₹50 per kg by 2007, when farmers reported break-even costs near ₹250 per kg. Many uprooted vines. Synthetic vanillin, which costs about a tenth as much, and recovery in Madagascar and Indonesia drove the crash (Down To Earth).
- During the boom, farmers guarded vines with fences and dogs against pod theft.
- Buyers are spice traders, exporters and flavour or food companies; the Spices Board registers dealers and can tell you who buys in your area. See also export buyers.
- Avoid sellers who promise buy-back at a fixed price. Insist on written terms.
Subsidy
The Spices Board has had planting-material and area-expansion schemes for vanilla, but rates change by year. No current rate has been verified, so check with the Spices Board regional office and the subsidy finder.