Spireas have grown in populairty because they are very drought resistant and come in a wide array of colors. Currently, there are more than 80 species of spireas, some of which have dozens of different varieties and sub-species. Below are a few of the more popular varieties of spireas.
Bridal Wreath Spirea
These are a mid-size spirea plant, growing about 10 to 12 inches tall and anywhere from 6 to 8 feet wide. They can be identified by their arching branches. Bridal wreath spirea is also known to blossom with white flowers in the early spring.
Fairy Queen Spirea
These are very similar to Bridal Wreath Spirea in that they grow wide with arching branches and have white flowers that bloom in the early spring. However, these grow much taller, reaching as tall as three feet in height.
Hardhack Steeplebush Spirea
This particular type varies from the Bridal Wreath Spirea in several ways. First off, they bloom later in the year, usually around mid summer, as opposed to early spring. Also, they have a wider selection of coloring for the flowers, including pink, pale pink, violet, and lavender.
This variety offers yet another color option, with pink flowers but yellow-gold foliage. They grow as tall as two feet, but only two to three feet wide, and bloom in mid summer.