Today the McAllenâEdinburgâMission metropolitan area is one of the fastest growing metropolitan areas in the United States, The introduction of the maquiladora economy and the North American Free Trade Association led to a boom in international trade, cross-border commerce with Mexico, and health care.
Depending on the variety, marigolds can grow 8 to 40 inches tall, and develop blooms that can range in size from 1 to 5 inches. For germination within about five to 10 days, start the seeds indoors six weeks before the last spring frost and expose them to ideal conditions.Start marigold seeds in a seed-starting flat that's filled up until 3/4 inch from the top with sterile, moist, seed-starting mix.Sprinkle the seeds on top of the medium and sow them at a depth that equals two to four times the diameter of the seeds.or germination within about five to 10 days, start the seeds indoors six weeks before the last spring frost and expose them to ideal conditions. Start marigold seeds in a seed-starting flat that's filled up until 3/4 inch from the top with sterile, moist, seed-starting mix.
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.