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.
This will improve soil drainage and fertility. Plant marigold seeds in the soil 1/4 inch deep and water the area deeply. The appropriate spacing for marigolds depends on the mature size of the plant. French marigolds (Tagetes patula) are smaller plants and can be spaced 6 to 9 inches apart.The larger African marigolds (Tagetes erecta) need around 18 inches of space between plants.n temperate coastal climates, where soil temperatures warm quickly in the spring and where spring temperatures are mild, marigolds can easily be direct seeded into the ground at nearly any point in the early to mid spring. The best month to sow marigold seeds is in early April.