Great Waterleaf
Hydrophyllum appendiculatum
Cbaile19







Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Boraginaceae
- Genus:
- Hydrophyllum
- Species:
- Hydrophyllum appendiculatum
Growth Characteristics
- Life Cycle:
- Biennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Part Shade,Shade
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- white, lavender, purple
Native Range
Canada, United States
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Reported Fauna Sightings
Bees: ⚠️Western honey bee (Apis mellifera)
Garden & Ecology Notes
- Wildlife Value:
- bees, native bees
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates moderate drainage
- 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 are best sown fresh in fall for spring germination.
Propagation data sourced from Claude AI
Pre-treatment: Seeds are warm and cold stratified
Establishment: H. appendiculatum is found within temperate deciduous forests of North America
Source: npn.rngr.net