Growing snapdragons provides cool-season color and a mid-sized plant to balance tall background plants and shorter bedding plants in the front. Numerous varieties of snapdragon exist with dwarf, intermediate and tall flowering stems that provide a wide range of colors to work with. The height of the snapdragon may reach 3 feet or as short as 6 inches. This fragrant specimen can handle frost and needs to be kept keep moist for the first few weeks. Once established, snapdragon care includes regular watering. Water near the crown of the plant and avoid overhead watering to keep your snapdragon healthy. Once established, let soil dry about an inch deep before watering. Remove spent blooms and mulch is appropriate.