Threadleaf Giant Hyssop
Agastache rupestris
photo by Charlie McDonald; uploaded by Xiaphias
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Lamiaceae
- Genus:
- Agastache
- Species:
- Agastache rupestris
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 3-4 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- aug, sep, oct
- Bloom Colors:
- Red, Pink, Purple
Native Range
United States: Arizona, New Mexico
Reported Fauna Sightings
Bees: Yellow head bumble bee (Bombus flavifrons), Yellow head bumble bee (Bombus flavifrons)
Soil Requirements
- Soil Type:
- rocky, well-drained, sandy soil
- pH:
- 6.0 - 8.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to arid regions; avoid waterlogged conditions
Germination Information
Pre-treatment: Single-step cold-moist stratification for temperate woodland species. for 60–120 days
Notes: Seeds germinate readily without pretreatment.
Source: OpenAI GPT-4o