Alpine Meadow-Rue
Thalictrum alpinum
- Native to:
- Afghanistan, Austria, Canada, China, Finland, Føroyar, France, Great Britain, Greenland, Iceland, India, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Kuril Is., Labrador, Myanmar, Nepal, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Romania, Russia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, United States, Uzbekistan, Vietnam
Anton Hartinger
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ranunculaceae
- Genus:
- Thalictrum
- Species:
- Thalictrum alpinum
- USDA Symbol:
- THAL
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- greenish, purple
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Host Plant for Caterpillars
⚠️Bog Fritillary (Clossiana eunomia)
Garden & Ecology Notes
- Wildlife Value:
- pollinators
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- moist, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Prefers alpine and subalpine meadows and rocky areas.
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–60 days
- Notes:
- Seeds benefit from cold stratification; sow in fall or after cold treatment.
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.