Larkspur, Candle Delphinium
Delphinium 'King Arthur'

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)

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

Regional

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

Anchorage, Alaska

Rincon, Georgia

Wayzata, Minnesota

Elba, New York

Philomath, Oregon

Scappoose, Oregon

Meshoppen, Pennsylvania

Wilkes Barre, Pennsylvania

show all

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

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

Very pretty tall Delphinium, with dark blue flowers.