SafePlants

Carolina Larkspur (Delphinium carolinianum)

Carolina Larkspur, also known as Blue Larkspur, Prairie Larkspur, Plains Larkspur, or Espuela del caballero, is a captivating wildflower native to the United States. Its delicate flowers and graceful form make it a beautiful addition to prairies and grasslands.

Considerations for Pets

• The plant has spurred flowers.

Taxonomy and Nomenclature

• Scientific Name: Delphinium carolinianum Walter
• Family: Ranunculaceae (Buttercup family)
• Genus: Delphinium (From Greek delphinion, derived from the Greek for "dolphin" because of the shape of some flowers)
• Subspecies:
  • Delphinium carolinianum ssp. calciphilum M.J. Warnock
  • Delphinium carolinianum subsp. carolinianum
  • Delphinium carolinianum ssp. virescens
  • Delphinium carolinianum ssp. vimineum
• Synonyms: Delphinium azureum, Michx.

Distribution and Habitat

• Native to the United States.
• Found in prairies and grasslands.
• Specifically mentioned as being found in Minnesota, Illinois, Arkansas, and Colorado.
• Rare in the Piedmont and Coastal Plain. Uncommon in the mountains.
• One source indicates it is a state-listed endangered species in Florida.

Morphology and Growth

• Grows to approximately 4 feet tall.
• Flowers bloom from May to July.
• Flowers are small, about 1 inch in size, and shaped like cornucopias with a spur.
• Flower colors can be deep blue, reddish-blue, or white.
• Forms loose to dense spike-like clusters of 5-petaled irregular shaped flowers.

Habitat Preferences

• Prefers part shade and medium to moderately dry moisture levels.
• Adapts to a variety of soils, including clay.

Quirky Facts

• The genus name, Delphinium, comes from the Greek word for "dolphin" because the flower shape resembles a dolphin.

Further Information

• USDA-NRCS PLANTS Database
• Plant Delights Nursery, Inc.
• Discover Life
• Dave's Garden