One of the earliest shrubs to bloom in our Georgia garden is Bridal Wreath Spiraea. The variety we grow is S. cantoniensis ‘Lanceolata’, which is absolutely covered with double blooms that look like tiny white roses. The blooms appear all along the stem, also resembling stems of Baby's Breath, which is common of floral arrangements. I have used Bridal Wreath stems similarly in my floral arrangements when the shrub is in bloom.
Bridal Wreath Spiraea is very easy to grow. For the showiest bloom, plant in full sun where the large-growing shrub has plenty of room to grow. The arching stems will ultimately reach up to 6 feet tall and just as wide.
This spiraea can be grown in most parts of the United States, as it is hardy in USDA Zones 5-9b.
Spiraeas are known to be very drought tolerant, and the one in our roadside garden gets no supplemental water at all. The soil in that bed is very hard clay.