The McAllen Foreign-Trade Zone (FTZ) is located south of McAllen between McAllen and Reynosa. Commissioned in 1973, it was the first inland foreign trade zone in the United States and continuously ranks among the most active FTZs in the nation.
Marigolds take around 45 to 50 days to flower after you plant seeds, so seeds sown in early April should flower by May.
Marigolds will grow in nearly any warm to temperate climate. They do not survive well in colder climes. They prefer to be planted in full sun, approximately eight to 16 inches apart in moist, well-drained soil after the danger of frost has passed.