In Perennial All-Stars, Jeff Cox says, "Russian sage is one of the most useful and beautiful of the fillers for any perennial garden." It has aromatic, gray-green foliage with soft spikes of lavender-blue flowers from mid summer to fall.
height 4'
Sowing Perovskia Seeds:
Sow indoors 10 weeks before the last frost date. Barely cover the seeds, then refrigerate for 3 weeks. Full sun.