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Delphinium grandiflorum 'Summer Blues'

(Larkspur)

Summer Series

  • Dwarf, loose clusters of soft blue, butterfly-type blooms blend well in borders.
  • Height: 10-12 in
  • Spread: 10-12 in
  • Spacing: 12 in
  • Hardiness Zone: 4-9

Characteristics & Attributes:

Tray Size
• 50 Plug
Attracts Wildlife
Critter Resistance
Attributes
Exposure
• Full Sun
Garden Position
Weeks to Bloom
• 9-10
Season of Interest (Flowering)
• Summer
Soil Moisture
(Larkspur) Delphinium grandiflorum Summer Blues from Swift Greenhouses
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Swift Greenhouses Inc. |  2724 300th Street Gilman, Iowa 50106 US
Phone: 641-478-3217 |  Fax: 641-478-3226 |  Email: info@swiftgreenhouses.com

© 2026 Swift Greenhouses Inc. All Rights Reserved. Site Produced by Clarity Connect Inc.
Availability    Products & Forms    How To Order
Plant Library    Education    E-Mail Sign Up
About Us    Employee Login

Swift Greenhouses Inc.
2724 300th Street Gilman, Iowa 50106 US
Phone: 641-478-3217 |  Fax: 641-478-3226
Email: info@swiftgreenhouses.com

© 2026 Swift Greenhouses Inc. All Rights Reserved.
Site Produced by Clarity Connect Inc.
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