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Giant Larkspur Imperial Mix Seeds - Delphinium consolida

Delphinium consolida Imperial Mix
Giant Larkspur, Rocket Larkspur, Doubtful knight's-spur

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Céline B., 21/08/2018

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Giant Larskpur 'Imperial Mix' boasts numerous spikes of double flowers in a stunning host of colours including pink, blue, lavender and white. The 80 cm plants are well-branched. Annual delphiniums are hardy, easy-to-grow plants that are popular for cutting. The tall flower spikes stand out at the back of summer beds and borders, gorgeous in front of lower-growing perennials. Direct sow in spring in rich, cool soil, in a sunny, sheltered position.
Flower size
3 cm
Height at maturity
80 cm
Exposure
Sun
Annual / Perennial
Annual
Germination time (days)
21 days
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Sowing period March to May
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F
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S
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Flowering time June to September
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Description

Giant Larskpur 'Imperial Mix' boasts numerous spikes of double flowers in a stunning host of colours including pink, blue, lavender and white. The 80 cm plants are well-branched. Annual delphiniums are hardy, easy-to-grow plants that are popular for cutting. The tall flower spikes stand out at the back of summer beds and borders, gorgeous in front of lower-growing perennials. Direct sow in spring in rich, cool soil, in a sunny, sheltered position.

Delphinium 'Imperial Mix' is one of the many hybrids selected from Field Larkspur (D. consolida), a winter-germinating annual that occurs naturally in sandy or chalky cornfields. Annual delphiniums are hardy, fast-growing plants that form a wide 35-40 cm clump. The leaves are palmately divided or lobed, soft green in colour, topped with 80 cm tall floral stems in summer. From June to September, double, cup-shaped blooms appear, gathered on tall, erect spires. The display a wide array of harmonious shades.

The characteristic silhouette of Delphiniums always brings an elegant fullness, verticality and charm to perennial beds. For a romantic touch, combine them with old roses and Baby's Breath. The long-lasting blooms are particularly suitable for cutting. For dried flower arrangements, hang small bouquets upside down in a dry, well-ventilated place, away from direct sunlight.

Flowering

Flower colour multicoloured
Flowering time June to September
Inflorescence Spike
Flower size 3 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Annual
Foliage colour light green

Plant habit

Height at maturity 80 cm
Spread at maturity 35 cm
Growth rate normal

Safety measures

Potential risks Plant may be toxic if swallowed

Botanical data

Genus

Delphinium

Species

consolida

Cultivar

Imperial Mix

Family

Ranunculaceae

Other common names

Giant Larkspur, Rocket Larkspur, Doubtful knight's-spur

Origin

Cultivar or hybrid

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Planting and care

Sow the seeds of Delphinium Imperial Mix directly outdoors from April to May, in full sun, on a fertile, light, well-drained soil that has been previously prepared. Bury the fine seeds at a depth of 6mm in small holes spaced 30cm apart. Keep the soil moist by watering regularly, especially during dry periods. Germination usually takes 14 to 21 days. Once the seedlings are large enough to handle, thin them out by planting only one seedling every 15cm. For earlier flowering, sow Delphinium seeds from August to October in 7.5cm pots filled with high-quality compost kept moist. Place the pots in a mini-greenhouse or inside a plastic bag at a temperature of 15-20°C until germination. Once the seedlings have developed, move them to a bright but cooler location. Overwinter the plants in a cool, bright place, protected from frost, watering them sparingly. Transplant them to their final location in the following spring. Water regularly until the plants are fully established. Insert sturdy stakes among the 10cm tall plants to allow them to grow upright while being supported. You can also stake the plants with bamboo canes. Regularly remove faded flowers to encourage continuous blooming. Delphiniums thrive in sunny locations protected from the wind, as well as in fertile soil rich in organic matter and well-drained.

Sowing period

Sowing period March to May
Germination time (days) 21 days

Intended location

Suitable for Meadow
Type of use Border, Back of border
Ease of cultivation Amateur
Exposure Sun
Soil pH Neutral
Soil moisture Moist soil, Draining, lightweight, fertile
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