Mushrooms could become your specialty, as they are becoming increasingly popular. At present, only a handful of local farmers are growing mushrooms for direct marketing. Organically grown produce is another niche market to consider. It is a rapidly growing segment of agriculture and enjoys some price advantage. There are seed catalogs which specialize in cultural vegetable seeds.
Flowers are another option.
Growing annuals and perennials can be a profitable niche. Well arranged bouquets will enhance the appearance of your display and attract impulse shopping. How to choose the market Obtain the Massachusetts Farmers' Market Directory from the Department of Food and Agriculture. Contact the market managers to learn if there is room in a particular market for an additional grower, and for what type of produce. The managers are knowledgeable resources.