Delphinium, Candle Delphinium, Larkspur 'Guardian Blue'

Delphinium elatum

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
Additional cultivar information:(Guardian series)

Category:

Perennials

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Foliage:

Herbaceous

Foliage Color:

Unknown - Tell us

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)

Where to Grow:

Unknown - Tell us

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Dark Blue

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Late Spring/Early Summer

Other details:

Unknown - Tell us

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

Regional

This plant is said to grow outdoors in the following regions:

Fallbrook, California(5 reports)

San Leandro, California

San Mateo, California

Denver, Colorado

Lake City, Florida

Noblesville, Indiana

Rockwood, Michigan

Ocean Springs, Mississippi

Roswell, New Mexico

Santa Fe, New Mexico

Akron, Ohio

Mercer, Pennsylvania

Pittsburgh, Pennsylvania

Knoxville, Tennessee

Austin, Texas

Desoto, Texas

New Ulm, Texas

Cathan, Washington

Concrete, Washington

Grand Mound, Washington

John Sam Lake, Washington

Lakewood, Washington

North Marysville, Washington

Priest Point, Washington

Rochester, Washington

Shaker Church, Washington

Stimson Crossing, Washington

Weallup Lake, Washington

show all

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

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.

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