FoliageDelphinium
Delphinium elatum
Delphinium (Delphinium elatum) 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
- Native to
- Europe, northern and central Asia
In the landscape
Data sources
Freeze survival
Will it survive your winters?
Hardiness zones show a normal bad winter. We check the worst one — Delphinium is hardy to about -40°F (estimated from USDA zone 3), so we'll score it against the real coldest nights your area has actually had.
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.
See the Delphinium in your own yard
Upload a photo and our AI designs with real plants like this one — matched to your USDA zone.
