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PlantFiles: Larkspur, Candle Delphinium
Delphinium elatum 'Blue Bird'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Delphinium (del-FIN-ee-um) (Info)
Species: elatum (el-AH-tum) (Info)
Cultivar: Blue Bird

14 members have or want this plant for trade.


36-48 in. (90-120 cm)

18-24 in. (45-60 cm)

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

All parts of plant are poisonous if ingested

Bloom Color:
Light Blue

Bloom Time:
Late Spring/Early Summer


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings
Allow cut surface to callous over before planting
By air layering

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Seed does not store well; sow as soon as possible

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By PotEmUp
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Thumbnail #7 of Delphinium elatum by Xenomorf

There are a total of 8 photos.
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1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive GreeneLady On May 21, 2008, GreeneLady from Oak Island, NC (Zone 8a) wrote:

These Delphinium are stunning! I've heard people say they've had some problems growing these, but this is my first time growing delphiniums and I've had no problems. I planted them in a raised bed and spaced them about 12 inches apart. The soil in the bed is 1/2 peat moss, 1/4 miracle grow potting soil, and 1/4 compost. I live in zone 8a, and they planted in light shade . They get morning sun until 11am, Shade in the afternoon, and then from about 5pm on they get the evening sun. They get water at least every other day, and are mulched well. So far they seem quite happy!


This plant has been said to grow in the following regions:

Phoenix, Arizona
Fremont, California
San Leandro, California
Harlem, Georgia
Hampton, Illinois
Mount Prospect, Illinois
Worcester, Massachusetts
Detroit, Michigan
Heath, Ohio
Lebanon, Oregon
Mercer, Pennsylvania
Meshoppen, Pennsylvania
North Augusta, South Carolina
Leesburg, Virginia
Kalama, Washington
Vancouver, Washington

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