Photo by Melody

PlantFiles: Larkspur, Candle Delphinium
Delphinium 'King Arthur'

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Delphinium (del-FIN-ee-um) (Info)
Cultivar: King Arthur
Additional cultivar information: (Pacific Giant Series, aka Pacific Giant King Arthur)

One vendor has this plant for sale.

2 members have or want this plant for trade.

Category:
Perennials

Height:
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

Hardiness:
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)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Danger:
All parts of plant are poisonous if ingested

Bloom Color:
Dark Blue

Bloom Time:
Mid Summer

Foliage:
Herbaceous

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

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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to view:

By Evert
Thumbnail #1 of Delphinium  by Evert

By buddeyallen
Thumbnail #2 of Delphinium  by buddeyallen

By buddeyallen
Thumbnail #3 of Delphinium  by buddeyallen

By Calif_Sue
Thumbnail #4 of Delphinium  by Calif_Sue

By Calif_Sue
Thumbnail #5 of Delphinium  by Calif_Sue

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Evert On Jan 4, 2003, Evert from Helsinki
Finland (Zone 4b) wrote:

Very pretty tall Delphinium, with dark blue flowers.

Regional...

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

Anchorage, Alaska
Rincon, Georgia
Deephaven, Minnesota
Elba, New York
Philomath, Oregon
Scappoose, Oregon
Ashley, Pennsylvania
Meshoppen, Pennsylvania



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