Photo by Melody

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

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

12 members have or want this plant for trade.

Category:
Perennials

Height:
36-48 in. (90-120 cm)

Spacing:
9-12 in. (22-30 cm)

Hardiness:
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)

Sun Exposure:
Full Sun

Danger:
All parts of plant are poisonous if ingested

Bloom Color:
Medium Blue

Bloom Time:
Mid Spring
Late Spring/Early Summer

Foliage:
Herbaceous

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly 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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There are a total of 14 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive the1pony On Aug 31, 2009, the1pony from (Pony) Lakewood, WA (Zone 8a) wrote:

After the first bloom wrapped up I cut them way back, and they very quickly grew and bloomed again. These are definitely a new favorite for me.

Regional...

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

Fallbrook, California
San Leandro, California
San Mateo, California
Denver, Colorado
Lake City, Florida
Noblesville, Indiana
Gibraltar, Michigan
Latimer, Mississippi
Canada De Los Alamos, New Mexico
Roswell, New Mexico
Akron, Ohio
Mercer, Pennsylvania
Pittsburgh, Pennsylvania
Knoxville, Tennessee
Austin, Texas
Desoto, Texas
New Ulm, Texas
Cathan, Washington
Concrete, Washington
Lakewood, Washington



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