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Delphinium ‘Cobalt Dreams’ (Candle Larkspur)

Delphinium x elatum 'Cobalt Dreams', New Millennium Series

Delphinium Cobalt Dreams, Delphinium x Elatum 'Cobalt Dreams', New Millennium Series, Blue Delphinium, Blue flowers
Delphinium Cobalt Dreams, Delphinium x Elatum 'Cobalt Dreams', New Millennium Series, Blue Delphinium, Blue flowers

Standing out in the garden with its true blue flowers, Delphinium ‘Cobalt Dreams’ is a tall herbaceous perennial with sturdy flower spikes, densely packed with cobalt blue florets and brightly contrasting white central bees. Blooming for weeks from early summer to early fall, it adds a wonderful architectural presence to the garden and draws attention from quite a distance. Rising from a mound of divided, dark green foliage, this Delphinium has a neat compact habit. It belongs to the ‘New Millenium’ Series, which is renowned for the excellent form, strong stems, and vigorous growth habit of its hybrids. Cold hardy, they are also more tolerant of heat and humidity.

  • Grows up to 4-6 ft. tall (120-180 cm) and 18-24 in. wide (45-60 cm).
  • Performs best in full sun or part shade in fertile, medium moisture, well-drained soils. Provide a sheltered location to protect your plants from strong winds.
  • Attractive to hummingbirds and butterflies, but ignored by deer and rabbits!
  • A welcomed addition to beds and borders, cottage gardens. For the best visual impact, plant your Delphiniums in groups. Excellent as cut flowers, they deserve a spot in your cutting garden.
  • Removing spent flower spikes will result in another round of blooms on secondary spikes in late summer and fall.
  • All parts of the plant may cause severe discomfort if ingested.
  • Toxic to dogs, toxic to cats, toxic to horses. Poisoning is rare in humans, however, seeds and plants if ingested can lead to severe illness, paralysis, and even death.

 

Delphinium (Larkspur): Plant Care and Growing Guide


Adding splendor and architectural height to borders, Delphiniums are elegant and stately perennials, biennials or annuals, which form incredibly eye-catching flower spikes in summer.

Requirements

Hardiness 3 - 7
Heat Zones 3 - 7
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A1, A2, A3
Plant Type Perennials
Plant Family Ranunculaceae
Genus Delphinium
Common names Delphinium, Larkspur
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early, Late), Fall
Height 4' - 6' (120cm - 180cm)
Spread 1' - 2' (30cm - 60cm)
Spacing 18" - 24" (50cm - 60cm)
Maintenance Average
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Tolerance Deer, Rabbit
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Beds And Borders
Garden Styles Cutting Garden, Informal and Cottage
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Alternative Plants to Consider

Delphinium New Zealand ‘Stars’ (Candle Larkspur)
Delphinium New Zealand ‘Mini Stars’ (Candle Larkspur)
Delphinium ‘Red Lark’ (Candle Larkspur)
Delphinium tricorne (Dwarf Larkspur)
Delphinium Astolat Group (Candle Larkspur)
Delphinium elatum ‘Million Dollar Sky’ (Candle Larkspur)

Recommended Companion Plants

Clematis ‘Henryi’ (Early Large-Flowered Clematis)
Gypsophila paniculata (Baby’s Breath)
Echinacea (Coneflower)
Campanula persicifolia (Peach-Leaved Bellflower)

Find In One of Our Guides or Gardens

Stunning Blue Flowers to Enhance Your Garden’s Beauty
Delphinium – What Is Wrong With My Plant?
Delphinium – Pests and Diseases to Watch Out For
Delphinium
July Birth Flower: What is my Birth Flower?
Delphinium (Larkspur): Plant Care and Growing Guide
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 7
Heat Zones 3 - 7
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A1, A2, A3
Plant Type Perennials
Plant Family Ranunculaceae
Genus Delphinium
Common names Delphinium, Larkspur
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early, Late), Fall
Height 4' - 6' (120cm - 180cm)
Spread 1' - 2' (30cm - 60cm)
Spacing 18" - 24" (50cm - 60cm)
Maintenance Average
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Tolerance Deer, Rabbit
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Beds And Borders
Garden Styles Cutting Garden, Informal and Cottage
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Delphinium (Larkspur)
Not sure which Delphinium (Larkspur) to pick?
Compare Now

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