A single farmer can adequately grow and sell an acre of flowers and make around $30,000 in gross sales, according to a new University of Minnesota Extension webinar.

Since flowers are seasonal, she earns more money in some months than others. Sales tend to fluctuate around holidays like Valentine's Day and Mother's Day, she says. CNBC Make It.

Since flowers are seasonal, she earns more money in some months than others. Sales tend to fluctuate around holidays like Valentine's Day and Mother's Day, she says. CNBC Make It.