Carolina Larkspur

(Delphinium carolinianum subsp. virescens)

Carolina Larkspur (Delphinium carolinianum subsp. virescens)

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Climate Requirements

Precipitation 18" - 40"
High Temp. 83°F - 96°F
Low Temp. 12°F - 35°F

Summary

Delphinium carolinianum subsp. virescens, commonly known as Prairie Larkspur, is a deciduous perennial herb native to open woodlands, grasslands, and prairies across the Central and Southeastern United States. It typically grows to a height of 3-4 feet (0.9-1.2 meters) and a width of 1-2 feet (0.3-0.6 meters). The plant features tall spikes of delicate white flowers that bloom in late spring to early summer, adding vertical interest to garden beds. The flowers are particularly showy and attract pollinators such as bees and butterflies.

Prairie Larkspur is valued for its tall, elegant flower spikes and ease of maintenance. It is often used in wildflower gardens, borders, and cottage gardens. It prefers full sun to partial shade and requires well-drained soil. While it tolerates a range of soil types, it thrives in rich, loamy soils. It is not typically troubled by serious pests or diseases, but it can be susceptible to powdery mildew and crown rot if grown in poorly drained soils. It is important to note that all parts of the plant are toxic if ingested, so care should be taken if planting in areas accessible to children or pets.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 2.5-3.5 feet
  • Width: 1-1.5 feet
  • Growth Rate: Moderate
  • Flower Color: White, Blue
  • Flowering Season: Spring, Summer
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Drainage: Medium, Fast

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Deer Resistant, Hummingbird Garden, Low Maintenance, Rabbit Resistant, Showy Flowers

Natural Habitat

Native to open woodlands, grasslands, and prairies across the Central and Southeastern United States

Other Names

Common Names: Penard’s Larkspur, Plains Larkspur, White Larkspur

Scientific Names: Delphinium carolinianum subsp. virescens, Delphinium virescens, Delphinium carolinianum subsp. penardii, Delphinium penardi, Delphinium virescens var. penardii, Delphinium virescens var. macroceratilis, Delphinium albescens, Delphinium virescens subsp. penardii, Delphinium camporum

GBIF Accepted Name: Delphinium carolinianum subsp. virescens (Nutt.) R.E.Brooks