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Prairie Larkspur

Delphinium exaltatum

Prairie Larkspur stands out with its impressive height and stunning, vibrant blue flowers. Each spike can host dozens of small, star-shaped blooms, creating a dramatic vertical element in the garden. This species prefers cooler climates and performs best in locations with full sun to partial shade and well-drained, fertile soil. While it is a breathtaking addition to perennial borders, it requires some care to thrive, including staking to support its tall stems and protection from strong winds.

Details

Height36” - 60”
Spread12"
Bloom SeasonJuly – August
Soil Types
loamLoam
sandSand
Soil Moisture
dryDry
mediumMedium
Sun Exposure
partSunPart Sun

Range Map

Native
No current
record

Ecological Benefits

Maintenance Tips

  • Requires regular watering, especially during dry periods, to keep the soil consistently moist.
  • Deadheading spent flowers will encourage a second bloom.
  • Due to its height and relative delicacy, staking is recommended to prevent stem breakage, especially in windy areas.
  • Watch for slugs and snails; treat for powdery mildew and other fungal diseases as needed.

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