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Delphinium
Delphinium elatum
Delphinium is a medium-growing perennial, hardy in USDA zones 3-7, that matures to about 3-5 ft × 2-3 ft. It does best in full sun with medium water needs in well-drained soil. Expect blue blooms in summer. It attracts butterflies and hummingbirds, stands up well to deer and rabbits, grows happily in containers.
- USDA zones
- 3-7
- Sun
- Full sun
- Water
- Medium
- Mature size
- 3-5 ft × 2-3 ft
- Growth rate
- Medium
- Maintenance
- Medium
- Soil
- Well-drained
- Bloom color
- Blue
- Bloom season
- Summer
- Attracts
- Butterflies, Hummingbirds
- Tough against
- Deer, Rabbits
- Toxic to
- People
- Native to
- Europe, northern and central Asia
Freeze survival
Will it survive your winters?
We score Delphinium’s freeze-trouble range against the real coldest nights your area has recorded.
Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.
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