Pitcher sage is the most striking blue flower in the garden in early fall. This drought-tolerant perennial blooms the first year from seed, so it can be grown as an annual where it's not hardy. The azure-blue flowers attract butterflies and hummingbirds.
Salvia azurea tends to flop when it gets tall. To keep it compact, pinch it back to 24" in late June. Or prop it up with a fence or stakes, or let it lean against other tall plants. Also known as Salvia pitcheri. Hardy in zones 5-9.
Sowing Salvia azurea Seeds:
Sow indoors 10 weeks before the last frost date. Barely cover the seeds, then refrigerate for 3 weeks. Full sun. Well-drained soil.