Sunset Hyssop (Agastache rupestris): Rock Garden Hummingbird Mint

Sunset Hyssop: Threadleaf Agastache for Dry Gardens

Sunset hyssop (Agastache rupestris), also called rock anise-hyssop or hummingbird mint, is a perennial native to the southwestern U.S. and Mexico. It features fine, thread-like, licorice-scented leaves and spikes of tubular, sunset-orange flowers with pink calyces from midsummer to fall.

Botanical Profile

This species forms a woody-based clump 18–24 inches tall and wide. The narrow leaves reduce water loss. The flowers are a magnet for hummingbirds, butterflies, and bees. It's one of the most drought-tolerant agastaches.

Garden Uses

• Xeriscape and rock gardens: Thrives in hot, dry, poor soil.
• Pollinator garden: Long bloom season, high nectar.
• Herbal tea: Leaves make a pleasant licorice-mint tea.
• Cut flowers: Unique color for arrangements.

Requires full sun, excellent drainage, and lean soil. Avoid wet, heavy clay. Do not overwater or fertilize. Cut back in early spring. Hardy in USDA zones 5–9.