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.
Marigold Life Span. Marigolds are annuals, returning to seed at the end of the growing season when temperatures begin to dip. Often, the seeds left behind will begin to grow again the next season, making the flower appear to be perennial, but there is no guarantee this will happen.he French marigold is generally around or under 1 foot tall with flowers that are about 2 inches across. These two groups have been cross-bred to create a third group called the triploids. Triploids can grow a little taller than 1 foot high and have flowers about 2 inches across.