Early Meadow-Rue
Thalictrum dioicum
- Native to:
- Canada, United States
Cbaile19
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ranunculaceae
- Genus:
- Thalictrum
- Species:
- Thalictrum dioicum
- USDA Symbol:
- THDI
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 75 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- green, yellow
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
Pink-patched Looper Moth (Eosphoropteryx thyatyroides), Pseudeva purpurigera
Garden & Ecology Notes
- Wildlife Value:
- birds
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- good drainage preferred
- Moisture:
- consistently moist
- Notes:
- prefers shaded woodland environments
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds require cold stratification and may show erratic germination. Light may improve germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Mix the seeds with an equal amount of vermiculite or perlite, adding enough water to barely saturate the mixture. Stratify for at least two months in a refrigerator or cold garage. Seeds can be stored up to 3 years.
Establishment: Seeds are collected from locally native plants within the eastern central Upper Peninsula. The plant prefers rich deciduous woods, dappled sunlight and thickets along rivers.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 10C. GA3 required.