Blue Boa Hyssop is a stiffly upright long-blooming perennial with aromatic grey-green foliage.  Densely packed spikes of pink-violet to blue-violet flowers bloom from early summer into fall attracting butterflies and hummingbirds.  Flowers best in full sun and moist well-drained soils. 

MAINTENANCE NEEDS: Low maintenance.  Crown and root rot may occur in poorly drained soils.  No serious pests or disease issues but watch for powdery mildew, wilt, and rust.  

LANDSCAPE USES:  Accents or Group Plantings, Borders, Woodland Gardens, Naturalized Areas, Foundational Plantings, and Containers.

COMPANION PLANTS: Coneflower, Daylily, Russian Sage

IMAGES: Krzysztof Ziarnek, Kenraiz, Agastache 'Blue Boa' kz1, CC BY-SA 4.0, (2) Photo by Proven Winners, 'Blue Boa' Hummingbird mint, (3) Photo by Bernard Blanc, Au jardin, agastache "Blue Boa", Bosdarros, Béarn, Pyrénées Atlantiq, (4) Krzysztof Ziarnek, Kenraiz, Agastache 'Blue Boa' kz1, CC BY-SA 4.0

*As plants have ranges in appearance they may not appear as the images shown.