1.A military campaign denotes the time during which a given military force conducts combat operations in a given area (often referred to as AO, area of operation). A military campaign may be executed by either a single Armed Service, or as a combined services campaign conducted by land, naval, air, cyber and space forces.
Facts. 1  Tall marigolds are sometimes labeled African marigolds, and the dwarf kinds are often called French marigolds. 2  Tall marigolds (Tagetes erecta) grow anywhere from 15 inches to 4 feet tall with blooms that can reach up to 5 inches across.
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.