Tea farmers in Kenya are suffering because of low prices for their crop this year. So they have exchanged their tea bushes for a healthy new purple tea that they hope will sell for a higher price. But there may not be a demand for the new kind of tea.Agricultural workers in green tea fields near Mt. Kenya are gathering the tea leaves. It is beautiful to see. The rows of tea bushes are straight. All appears to be well. But the farmers who planted the bushes are worried.Nelson Kibara is one of them. He has been growing tea in the Kerugoya area for 40 years. He says the prices this year have been so low that he has made almost no profit. He says he must grow different kinds of tea if he is to survive.Mr. Kibara and hundreds of other farmers have been removing some of their tea bushes and planting a new kind of tea developed by the Tea Research Foundation of Kenya. Its leaves are purple and brown. When the tea is boiled the drink has a purple color.Medical researchers have studied the health benefits of the new tea. They say it is healthier than black tea and could be sold for a price that is three to four times higher than the price of black tea.But Mr. Kibara says he has not received a higher price for his purple tea crop. He says the market for the tea is unstable. And he is often forced to sell his purple tea for the same price as green tea leaves. He says there are not enough buyers willing to pay more for the purple tea than black tea.The Kenya Tea Development Agency(KTDA) represents small farmers. It says farmers have planted purple tea before a market has been created for it. Vincent Mwingirwa works at the agency."What has happened is that purple tea has been developed for the farm. Unfortunately, there was not concurrent research on the market for purple tea. So we are now in a scenario where some of our farmers have planted purple tea, but they do not know where to take it," said Mwingirwa.Stephen Mutembei works at the Tea Research Foundation. He says farmers quickly changed from growing black tea to growing purple tea. But he also blames tea leaf processors for not making changes more quickly.But Mr. Mutembei says purple tea is an important crop for the country and its tea farmers. He says Kenya needs to find new products like purple tea to help its tea industry become more stable. Tea is the country's top crop.Mr. Mutembei says the country's economy is too closely linked to the changing price of black tea. He says tea buyers and drinkers must be persuaded that they should pay more for purple tea than black tea.And that's the VOA Learning English Agriculture Report.