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

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