threadleaf giant hyssop
Agastache rupestris
USDA zones5 to 8
SunHandles full sun to partial sun
WaterHandles dry to moderate soil
Size18 to 24 inches tall12 to 18 inches wide
- Growth rate
- Moderate
- Habit
- Herb , subshrub
- Bloom season
- Summer, autumn
- Bloom color
- Burnt orange with purplish calyxes
- Foliage color
- Gray/silver, green
- Soil types
- Sand, loam, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
Threadleaf giant hyssop (Agastache rupestris) is a perennial for borders, pollinator gardens, rock gardens, and containers. It is hardy to USDA zone 5, or down to -20°F (-29°C). This plant likes full or part sun and dry to average, sandy, loamy, or chalky soil. The gray-green leaves smell a little like root beer, and hummingbirds love the apricot-orange flowers. Deer and rabbits usually look elsewhere for a meal. Give it good winter drainage.
Pairs well with Blue fescue, Sundrops, and Garlic chives.
Native range
Southwestern United States.