Yellow Giant Hyssop
Agastache nepetoides
- Native to:
- Canada, United States
Alex Abair (www.inaturalist.org)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Lamiaceae
- Genus:
- Agastache
- Species:
- Agastache nepetoides
- USDA Symbol:
- AGNE2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 180 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- jul,aug,sep
- Bloom Colors:
- yellow, greenish-yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Radcliffe's dagger moth (Acronicta radcliffei), Holly Blue (Celastrina argiolus)
Reported Fauna Sightings
Bees: American bumble (Bombus pensylvanicus), Common eastern (Bombus impatiens), 🛑Rusty-patched bumble bee (Bombus affinis)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, hummingbirds
- Deer Resistant:
- Yes
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open woodlands and prairies
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–21 days
- Notes:
- Requires light for germination; do not cover seeds. Best germination at 65-70°F after cold stratification.
The above propagation data sourced from Claude AI
Pre-treatment: Single-step cold-moist stratification for temperate woodland species. for 60–120 days
Source: Claude AI
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires light / surface sow (fine seed).