Prairie Larkspur
Delphinium carolinianum subsp. virescens (syn. Delphinium virescens)
Prairie Larkspur is an elegant native wildflower with tall spikes of white to pale lavender flowers that bloom above grass-like foliage. Its striking beauty belies its toxic nature, making it both admired and avoided in prairie landscapes.
Ranunculaceae (Buttercup family)
Late spring to early summer (May-July)
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Cultural Significance
The genus name Delphinium comes from the Greek "delphinion," meaning dolphin, referring to the flower's resemblance to a dolphin's nose. The common name "larkspur" comes from the supposed resemblance of the flower spur to a lark's claw. Prairie Larkspur can carpet acres of prairie with ethereal white blooms before the grasses fully emerge. Formerly classified as Delphinium virescens, it was reclassified as a subspecies of Carolina Larkspur based on studies of variation. The plant's beauty is deceptive, as all parts contain toxic alkaloids that can poison livestock.Shop Our Floral Collection
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Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun for best flowering; tolerates partial shade
Water
Prefers dry to medium moisture; drought tolerant once established; may go dormant in hot summer weather
Soil
Well-drained, Mesic to dry, Limey (calcareous), Sandy, Loamy, Rocky
Expert Growing Tips
Seeds require 60-day cold stratification for spring planting
Can be fall-sown for natural stratification
Plant may go dormant and disappear in hot summer weather, reappearing when cooler
Self-seeds readily in suitable conditions
Tubular to fibrous root system
All parts of plant are toxic; keep away from children and livestock
Attracts hummingbirds and bumblebees
No serious pest or disease problems
Uses & Benefits
Ornamental Uses
- Prairie and wildflower gardens
- Native plant gardens
- Rock gardens
- Perennial borders
- Pollinator gardens (especially bumblebees)
- Naturalized areas
Traditional Uses
- Historically, seeds ground and soaked in alcohol to kill head lice
- All parts are TOXIC and should never be ingested
- Can be fatally poisonous to both humans and animals, especially livestock
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Prairie Larkspur
Is Prairie Larkspur poisonous?
Yes, all parts of Prairie Larkspur are toxic and contain poisonous alkaloids. It can be fatally poisonous to both humans and animals, particularly livestock like cattle and sheep. Never consume any part of this plant and keep it away from children and grazing animals.
Why does my Prairie Larkspur disappear in summer?
Prairie Larkspur may go dormant and disappear during hot summer weather, then reappear when temperatures cool in fall. This is a natural survival strategy. The plant will return the following spring.
What is the difference between Prairie Larkspur and cultivated delphiniums?
Prairie Larkspur (Delphinium carolinianum ssp. virescens) is a native wildflower with white to pale lavender flowers, while cultivated garden delphiniums are typically hybrids with larger, showier flowers in vibrant blues, purples, pinks, and whites. Prairie Larkspur is more drought tolerant and adapted to harsh prairie conditions.
Does Prairie Larkspur attract pollinators?
Yes, Prairie Larkspur attracts hummingbirds and is of special value to bumblebees. Despite being toxic to mammals, the nectar-rich flowers are safe for pollinators and provide important food sources in prairie ecosystems.
Available Colors
Quick Facts
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