Image of Scutellaria lateriflora
Source: Donna Bos
image of Flowering plant
Scutellaria lateriflora
Mad-dog Skullcap
Scutellaire latériflore

Obsolete Names

blue skullcap
side-flowering skullcap
scutellaire à fleurs latérales
Seeds available at table Mixed Sun, Wet
We currently accept seeds for this plant
Bloom colour: Blue Bloom period: Jul - Sep
Max Height: 2.0 feet
Max Width: 1.5 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Perennial plants that will that come back year after year
Gardener Experience:
plant self seeding Self-seeding
Landscape uses:
wetland garden Suitable for wetland garden
school garden Suitable for school gardens
foot traffic tolerant Tolerates foot traffic
Ecological Benefits: No ecological benefits information available.
Tolerates:
Deer Resistant Deer resistant
rabbit resistant Rabbit resistant
foot traffic Tolerant Tolerates foot traffic
juglone Tolerant Tolerates juglone conditions
transplantation Tolerant Tolerates transplantation
Special Features and Considerations:

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Scutellaria lateriflora
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Atlantic Maritime
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Scutellaria lateriflora

No butterfly data available for this plant.

Specialized Bees Supported by Scutellaria lateriflora

No bee data available for this plant.

Plants that grow in similar conditions, that bloom at the same time.

Complementary Plants

Substitute For Non-Native Plants

  • Lamium (Dead nettle)
  • Ajuga reptans (Bugleweed)
  • Salvia (Non-Native Sage)
  • Baptisia (False Indigo)
  • Lavandula) (Lavender)
  • Liatris (Blazing Star Cultivar)

Sowing Information

Download Sowing Label (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: August
  • Harvesting indicator: Pods are brown, seeds are dark, and crisp, and little stem connecting the pod to the main stem is brown (not green)
  • Harvesting mean: Cut stem (including pods), let air dry in paper bag, then shake seeds off after a few days
  • Seed viability test: No test needed before donating
  • Packaging measure: 1 rounded 1/32 teaspoon
  • Seed storage: Air dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • At least one cultivar: No, you can donate without knowing the source as there are only straight species
  • Remove non seed material
  • Harvesting video: Watch here

Toxicity Notes

Inadequate information on toxicity found but might be toxic.