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Scientific Name: Delphinium elatum
Pronunciation: del-FIN-ee-um del-FIN-ee-um uh-LATE-um
Common Name: delphinium, perennial larkspur
Family Name: Ranunculaceae
Plant Type: Herbaceous perennial
Key ID Features: Flowers bilaterally symmetrical, petals 2 or 4, showy petal-like sepals with posterior one forming a spur; leaves simple, most palmately veined with 5 toothed lobes.
Course(s): Level 1 Apprenticeship, CLT Training

Habit: Upright
Form: Columnar
Texture: Medium - fine
Mature Size:
Height:1.3 - 2.0m
Spread:0.6 - 1.0m
Growth Rate:Fast
Origin: Garden origin (mountainous areas world-wide except Australia)
Hardiness Rating: Zone 4: (-34 to -29 C)
Exposure: Full sun, Sheltered
Soil/ Growing Medium: Well-drained
Water Use: Moderate
Landscape Uses: Cut flower or foliage, Floristry, Perennial border, Summer interest, Tall background, Wild flower garden
Additional Info: Google. Cultivars shown or on campus may include D. 'Bellamosum' and D. 'Bluebird',and D. 'Stand Up', D. grandiflorum 'Summer Blues'. Easily confused with Consolida which is annual and tends to have more highly dissected leaves.
delphinium, perennial larkspur
Leaf Morphology:
Form: Lobed, Simple
Arrangement: Alternate, Basal
Texture/ Venation: Palmate venation, Soft flexible
Surfaces: Glabrous
Colour in Fall: Yellow, Brown
Leaf(let) Terms:
Shapes: Orbicular
Apices: Acute
Bases: Cordate, Hastate
Margins: Dentate, Incised, Serrate

Inflorescence Type: Floriferous, Raceme
Flower Morphology:Flowers perfect
Number of Petals:5
Colour (petals): Showy, Blue, Dark-red, Pink, White, Red, Yellow
Flower Scent: None
Flower Time at Peak: Jun, Jul, Aug
Additional Info: or in spikes or rarely in panicles; mostly bilaterally symmetrical; some cvs. double-flowered

Fruit Type: Aggregate fruit, Follicle
Fruit Colour: Brown
Fruiting Time: Sep, Oct
Additional Info: aggregates of 2 to 5 (= number of pistils)

Bark or Stem Colour:
Organ Modifications: Fibrous-like roots, Leaf-like bracts, Tuberous roots

Propagation: Division - below ground parts, Cuttings, Seed
Plant Care:
Other:dead head spent flowers, clean media or disease free soil required
Pest Susceptibility: Deer resistant, Rust, Fungal leaf spot, Mites, Crown rot, Bacterial leaf spot, Slugs or snails, Root rot, Mildew
Specific Pests: Botrytis grey mold
(BED) BEDding, container, or basket
(GNH) GreeNHouse
(NRY) NuRserY
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