Ashwagandha Cultivation in India: From Sowing to Harvesting

Table of Contents

• Sustainable Farming of Ashwagandha
• Unlocking the Mysteries of the Ashwagandha Plant
• What are the Different Varieties of Ashwagandha?
• Where is Ashwagandha Grown?
• Cultivation Process of Ashwagandha Farming
• Soil & Climate
• Land Preparation
• Transplanting the Ashwagandha Sapling
• Sowing Method
• Seed Treatment
• Thinning & Weeding
• Applying Manures & Fertilizers
• Irrigation
• Pest & Disease Management
• Harvesting of the Ashwagandha Plant
• The Bottom Line on Ashwagandha

Sustainable Farming of Ashwagandha

Ashwagandha is an ancient medicinal plant known for its tonic and sedative properties. It first found mention in the text Punarvasu Atreya, some 4,000 years ago, and has been a key medicine in the Indian traditional medicine systems of Ayurveda and Unani. There is a significant scope for increasing its cultivation and achieving higher production to address the demand–supply gap. The annual demand for Ashwagandha in India is approximately 7,000 tonnes, but only 1,500 tonnes are produced. However, cultivating it successfully requires extreme care as it requires specific agro-climatic conditions.

Unlocking the Mysteries of the Ashwagandha Plant

Ashwagandha's scientific name is Withania Somnifera, wherein Withania means ‘primary extract of plant’ and somnifera means ‘sleep-inducing’ drug. The biological source of Ashwagandha includes dried roots as well as stem bases of Withania somnifera Dunal, which belongs to the Solanaceae family. It is known by different regions and languages. These names include Asgandh, Winter Cherry, and Indian ginseng. It is named so because its root extract smells like a horse, and its consumption provides strength and vitality like a horse.

Ashwagandha’s medicinal properties find mentions in texts like Astanga Hridaya, Bhava Prakasha Nighantu, Chakra Samhita, and Sushruta Samhita. Its root extract is primarily used as a sedative and tonic in many countries. It is also referred to as ‘Royal Herb’ because of its multiple therapeutic effects on the human body.

Ashwagandha medicinal plant, is an erect, branching undershrub that reaches a height of about 1.50 meters. It is mainly cultivated in dry and sub-tropical regions of India. Its cultivation requires extreme care as it is a highly soft plant.

What are the Different Varieties of Ashwagandha?

As per Ashwagandha classification, the main varieties of Ashwagandha are:

• Rakshita and Poshita
• WSR
• Raj Vijay Ashwagandha-100
• Jawahar Asgand-20 and Jawahar Asgand-134
• Nagori

Where is Ashwagandha Grown?

Ashwagandha is primarily cultivated in India, Pakistan, and North America. With the growing awareness and importance of Ayurveda across the world, the export potential of Ashwagandha has increased. Today, this plant is exported to countries like Canada, the Czech Republic, and the USA. 

The major states involved in Ashwagandha farming are Madhya Pradesh, Rajasthan, Haryana, Punjab, Gujarat, Uttar Pradesh, and Maharashtra. Among all these states, Madhya Pradesh is the leading Ashwagandha-producing state, where it is cultivated in more than 5000 hectares.

Cultivation Process of Ashwagandha Farming

The following are the main considerations related to the Ashwagandha cultivation in India:

Soil & Climate

Sandy loam to light red soil with a 7.5 to 8 pH is best suited for Ashwagandha cultivation. Also, it should have a good drainage facility. Its plant grows well in 600-1200 m altitude.

Ashwagandha is cultivated during the late rainy season and is a Kharif season crop. The plant, during its growing cycle relatively requires a dry season, and 1 or 2 winter rains improve its root development. The ideal climatic conditions are:

• Climate: Semi-tropical
• Temperature: 20°C to 35°C

Land Preparation

Field preparation is the first step in any crop cultivation process. In the case of the Ashwagandha plant, 2-3 ploughing and harrowing needs to be done before the rains. Once the land is well-cultivated, pulverised, & brought to fine tilth, apply 10 -20 tonnes of Farmyard Manure (FYM).

Transplanting the Ashwagandha Sapling

The planting of Ashwagandha can take place in two ways: directly sowing the seedling or transplanting the nursery-grown plant.

In the former method, prepare the ridges at a spacing of 60 cm and then plant the seedlings at a spacing of 30 cm. The optimum plant spacing for Ashwagandha is 60 x 30 cm with a density of around 55,000 seedlings per ha.

In the latter method, transplant the nursery-raised plant after 25 – 35 days of sowing with a 60 cm x 60 cm spacing.

Sowing Method

Transplanting of Ashwagandha is done either by method of broadcasting or live method. In the case of the broadcasting method, the ideal seed rate is 10 -12 kg per hectare. Do ensure to cover the seeds with light soil.

In the case of line-to-line method, the seeds are generally sown 1 – 3 cm deep. The ideal line-to-line distance is 20 – 25 cm, and plant-to-plant spacing is 8 – 10 cm. This method is the most preferred as it helps to increase the root production & perform intercultural practices efficiently.

Seed Treatment

To protect the seedlings from seed-borne diseases, seed should be treated with dithane M45 (Inofil m45) or thirum at the rate of 3 grams per kg seed before sowing. 

Thinning & Weeding  

Thinning is necessary to maintain plant density of 30 to 60 plants per square km and should be done 25 to 30 days after sowing with the hand. The plant density is generally determined by the nature and fertility of the soil. For example, in marginal soils, the plant density is maintained high.

On the other hand, two weedings are needed, first within 20 to 25 days of sowing, and second, after 20 to 25 days of the first weeding to keep the Ashwagandha farm weed free.

Applying Manures & Fertilizers

The Ashwagandha plant does not require heavy doses of manure and fertilizers; however, the recommended doses are:

• Organic Manure: 10 tonnes FYM per hectare or 1 tonne vermicompost per hectare.
• Chemical Fertilizers: 15 kg Nitrogen and 15 kg Phosphorus per hectare. 

Irrigation

It is to be noted that excess rainfall or water is detrimental to this crop, but light showers after transplantation help in establishing seedlings better. If necessary, lifesaving irrigation may be applied. Under irrigated conditions, it can be irrigated once in 10 days.

Pest & Disease Management

While no major pest is recorded in the Ashwagandha crop, as soon as the crop is damaged by an insect, spray:

• 2 to 3 sprays of rogor or nuvan at 0.6%.
• A foliar spray of 0.5% malathion and 0.1% - 0.3% kelthane at 10-15 days interval to guard against aphids and mites.

The Ashwagandha plant is affected by diseases such as seedling rot and blight. Treatment of the seed at sowing with

• Carbofuran @ 2-2.5 kg/ha; and
• Neem cake reduces seed mortality accentuated by high humid conditions and temperature.

Further, crop rotation[I2] , timely sowing, and well-drained field also protect the crop.

Harvesting of the Ashwagandha Plant

Drying out of leaves & yellow-red berries are indication that Ashwagandha is maturing and ready for harvest. Flowering & fruiting start from December.  The crop is dug for roots in January to March (150 to 180 days after sowing), and moisture should be present in the soil.

At the time of digging, there should be enough moisture in the soil, and roots should be dug out with a power tiller or country plough, and the tap root pulled out carefully without damaging even the small lateral roots.

Ashwagandha Plant Yield

On average, the yield from 1 ha of commercial cultivation is approx. 3-5 quintals/ of dry roots & 50 to 75 kg of seeds.  A maximum profit can be procured up to 6.5 to 7.0 quintals per hectare. There are instances where you have achieved root yields as high as 1 tonne. For commercial purposes, 7-10 cm length and 6 to 15 mm diameter root species with alkaloid percentage of 0.13 - 0.31% are better.

The Bottom Line on Ashwagandha

Ashwagandha is considered an important medicinal plant with drought-tolerant qualities. This is why it is usually grown in marginal soils under rainfed conditions. This crop offers higher profits for farmers due to its high demand and diverse medicinal properties. Overall, Ashwagandha cultivation is a profitable business venture for Indian farmers to market both its raw plant and value-added product.