Calystegia spithamaea subsp. spithamaea
Calystegia spithamaea subsp. spithamaea
- Native to:
- United States | CT, DE, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, NC, NH, NJ, NY, OH, PA, TN, VA, VT, WI | Virgin Islands
GBIF: Gracie Catanzaro




Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Convolvulaceae
- Genus:
- Calystegia
- Species:
- Calystegia spithamaea subsp. spithamaea
Growth Characteristics
- Growth Habit:
- Subshrub
- Height:
- 30 cm
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- white
- Ground Cover:
- Yes
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from rhizomes after fire. Common in fire-maintained oak-pine barrens and savannas.
Source: Claude claude-sonnet-4-5-20250929 Batch
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 14–30 days
- Notes:
- Seed coat scarification improves germination. Seeds may have variable dormancy and germinate over extended periods.
Source: Claude claude-sonnet-4-5-20250929 Batch