Oak Summit Nursery
American Skullcap Seeds
American Skullcap Seeds
Pack contains: 100+ seeds
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American Skullcap (Scutellaria lateriflora) is a North American perennial found in wetlands and other moist sites. Small blue flowers open along the side branches from June into August and are pollinated by bees and flies.
Cold Hardiness Zone: 3
Stratification Required: 1 to 2 months cold
Mature Size: about 2 ft tall
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Growing details
- Foliage
- Opposite, thin, mostly smooth leaves; ovate to lance-shaped with toothed margins, dark green above and lighter beneath
- Native range
- Native from Canada into the United States, including Manitoba
- Growing site
- Part shade favoured; sun where moisture remains adequate; medium-moist to moist sites including wet wetlands
- Growth habit
- Moist-site perennial with small lateral blue flowers; propagation can be by seed or root cuttings
- Spread
- Rhizomatous, but described as restrained rather than aggressively spreading
Cold hardinessZone 3 · Canadian maps for this plant
Zone 3 and warmer
The map shows minimum winter hardiness. Soil, moisture and summer warmth also affect how a plant grows.
About these maps
Climate: Natural Resources Canada, 1991–2020. Provincial distribution: VASCAN via retained botanical research. Province outlines: Natural Earth, public domain.
Open Government Licence – Canada