The new and distinct cultivar of perennial Salvia plant named ‘;Sweet Petite’; characterized by its very large lavender-pink flowers from dark rosy-red buds, densely arranged in verticils. The new plant has a short, compact habit with stiff, upright, heavily-branched stems and a strong vigorous growth rate and gray-green foliage. ‘;Sweet Petite’; is useful for landscaping as a specimen plant or en masse.