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.
1 The seeds germinate easily, but watch out for damping off if you start them inside. 2  Separate seedlings when they are about 2 inches tall. Plant them in flats of loose soil, or transplant them into the garden.  Space tall marigolds 2 to 3 feet apart; lower-growing ones about a foot apart.