A new drinks industry is emerging from India’s tea estates, powered by a crop known locally as ‘blue gold’. Butterfly pea flower, a vivid indigo bloom long used in traditional medicine and cuisine, is now being cultivated on a commercial scale, attracting significant interest from British investors looking to tap into a market estimated to be worth £2bn over the next decade.
The flower, which changes colour from blue to purple when mixed with citrus, has become a staple ingredient in artisanal teas, cocktails and health drinks. Its appeal lies in its high concentration of anthocyanins – antioxidants associated with cognitive and skin health – and its natural, plant-based origin, which aligns with the growing global demand for functional beverages.
India’s Ministry of Commerce reported a 340 per cent increase in butterfly pea flower exports over the past three years, with the UK emerging as the third-largest buyer after the United States and the United Arab Emirates. The surge has been driven largely by the premium tea and beverage sector, where brands such as Twinings, Pukka and a growing number of craft cocktail producers have incorporated the ingredient.
UK investors have taken note. A consortium led by London-based venture capital firm Green Crop Capital has announced plans to invest £150m in a supply chain initiative that will support over 10,000 smallholder farmers across the Indian states of Kerala, Tamil Nadu and Assam. The investment will fund drying facilities, quality control laboratories and distribution networks to ensure a consistent, high-grade product for the export market.
‘Butterfly pea flower is a classic example of an underutilised crop with massive commercial potential,’ said James Whitfield, managing partner at Green Crop Capital. ‘What we are witnessing is a blue gold rush. The British market alone could absorb several thousand tonnes annually if the supply chain is properly professionalised.’
The infrastructure investment is expected to create 15,000 jobs in rural India, many of them for women who traditionally have been responsible for hand-harvesting the flowers. The project also includes training programmes on sustainable farming practices and water conservation, given that the crop requires significantly less water than conventional tea.
The Indian government has designated the butterfly pea flower as a ‘high-value horticultural crop’ and is offering tax incentives to exporters and processors. The National Horticulture Board has set aside £40m for research into improved seed varieties and extraction techniques to boost yield.
For the UK, the opportunity is twofold. British-based beverage companies can source a natural colourant and functional ingredient free from the supply chain disruptions that have affected synthetic alternatives. At the same time, the investment strengthens economic ties with India following the bilateral trade agreement signed in 2022.
However, industry analysts caution that the market remains nascent and faces hurdles. Quality standards vary widely, and smaller producers lack the capital to invest in refrigeration and rapid transport. There is also the risk of oversupply if too many farmers switch to the crop without guaranteed buyers.
‘The next two years are critical,’ said Priya Sharma, director of the Indian Institute of Horticultural Research. ‘If we can establish a transparent, premium channel from farm to bottle, India will become the dominant supplier for the global functional beverage market. If not, we may see a repeat of the vanilla boom and bust.’
UK investors are betting on the former. With £2bn in potential market value, the blue gold revolution is a rare confluence of agricultural tradition, modern commerce and diplomatic advantage.
