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:
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:
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:
Bloom Time:
Mid Spring
Late Spring/Early Summer
Other details:
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:
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 allGardeners' Notes:
| Rating | Content |
|---|---|
| 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. |
