Red Salvia (Salvia splendens)

 Salvia is quite a large genus of annual and perennial plants, many of which have red flowers. But the most popular of these is Salvia splendens, often known simply as red salvia or scarlet sage.

Because of its color, red salvia is useful in decorations for holidays such as Halloween and 4th of July. Although it is a perennial plant in tropical climates, red salvia is treated as an annual in most regions where it is used. Typically, salvia plants grow rapidly and thrive in warm summer temperatures.