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Aurora Blue Delphinium

$695
  • Stunning tall true blue flower spikes with dense blooms
  • Strong stems and excellent uniformity
  • Ideal for cut flower production or perennial borders
  • Performs best in cool temperatures with full sun
  • Highly vigorous hybrid variety with long vase life
  • Blooms in 110–120 days; height 35–47”
Description

Delphinium ‘Aurora Blue’ (Delphinium × hybridum) produces tall, elegant spires packed with rich blue flowers that add a bold, vertical accent to any garden bed or floral arrangement. A standout in the Aurora F1 series, this hybrid variety is prized for its uniform growth, hybrid vigor, and exceptional stem quality.


‘Aurora Blue’ thrives in cool conditions and is perfect for both greenhouse and outdoor production. The large, densely flowered spikes are ideal for cut flower use, containers, or perennial borders. Its long vase life and spectacular color make it a grower favorite for spring and summer programs.

Growing Information

Aurora Blue Delphinium Planting Information

Scientific Name: Delphinium × hybridum

Common Name: Delphinium, Larkspur

Series: Aurora F1

Variety: Blue

Plant Type: Annual, short-lived Perennial (treated as annual in some climates)

Color: Blue

Height (in.): 35–47

Sun Requirement: Full Sun

Moisture: Moderate; keep soil well-drained

Blooming Season: Spring–Summer

USDA Hardiness Zone(s): 3–7

  • Germination: 10–12 days at 65°F; cover with vermiculite — requires darkness
  • Plug Finish Time: 5–6 weeks

Transplanting & Finishing:

  • Transplant: 35–45 days after sowing
  • Spacing: 6–8 inches apart for cut flowers
  • Days to Flower: 110–120 days from sowing
  • Temperature: 60–80°F day / 45–50°F night
  • Germination: Benefits from a 2–4 week cold stratification period
Additional Information

Notes:

  • For spring/summer flowering, sow in fall or early winter.
  • Prefers cool soil and air temperatures; avoid heat stress.
  • High fertility before flower initiation promotes strong growth.
  • Cut back after flowering to encourage a second flush.
  • Reduce fertilizer after bud initiation to prevent root rot.
  • Excellent choice for cut flower production, pots, or landscape use.
  • Deep True Blue and Purple shades bloom slightly earlier than lighter colors.

  • Poisonous to humans and pets if consumed. Mainly seeds and new growth.