These tiles are found in drainage systems on land used for farming, agriculture, horticulture, or floriculture.
Larger, more profitable units are beginning to be developed, specializing in market gardening, floriculture or cattle or pig production.
The cut flower industry, known in the trade as "floriculture", is a multibillion-dollar business, with interests reaching from Holland to Africa to California to South America.
Nationally, floriculture is a $13-billion-a-year industry.