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Delphinium consolida Imperial QIS Lilac - Larkspur seeds

Delphinium consolida Lilac
Larkspur, Annual Larkspur

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An annual variety of larkspur, remarkable for its opalescent mauve flower spikes borne on sturdy stems. Belonging to the QIS series, this plant is prized for its cut flower production due to its uniform flowering and high-quality stems. It blooms from May to September, adding a romantic and delicate touch to borders and bouquets. It prefers sunny positions and well-drained soil. Sow directly in the ground, in a sunny spot, in fresh and deep soil.
Flower size
3 cm
Height at maturity
1 m
Exposure
Sun
Germination time (days)
21 days
Sowing method
Direct sowing
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Sowing period March to May
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Flowering time June to September
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Description

Delphinium Imperial QIS® Lilac is an elegant annual variety, cultivated for its soft mauve, long floral spikes, ideal for cut flowers or romantic gardens. With an upright and airy habit, this plant produces straight, sturdy stems reaching between 80 and 100 cm, adorned with slightly wavy double flowers. It thrives in sunny positions and rich, well-drained soils. Whether in pots or in the ground, it offers generous and continuous flowering from May to September, provided it is lightly staked if exposed to wind. Perfect for cottage garden borders or beds, it also makes lovely rustic bouquets.

Delphinium Imperial QIS® Lilac is an annual cultivar from the Ranunculaceae family, belonging to the genus Consolida, often considered synonymous with Delphinium in horticultural classification. Its full botanical name is now Consolida ajacis, although synonyms such as Delphinium consolida or Consolida ambigua are also used. This species is native to the Mediterranean basin, particularly southern Europe and western Asia, where it grows naturally in open meadows and grassy areas, thriving in well-drained, sunny soils. The QIS® Lilac cultivar has been selected for its exceptional qualities as a cut flower, offering remarkable uniformity, intense colour, and robust stems. It has an upright habit, reaching a height of 80 to 100 cm, with sturdy stems bearing dense floral spikes 25 to 30 cm long in the year of sowing. The flowers are mostly double, with a small percentage being single, and measure approximately 2 to 3 cm in diameter. Flowering extends from May to September. The medium green foliage is finely divided and the stems are smooth and sturdy. The root system is a taproot, making the plant sensitive to disturbance during transplanting.

Delphinium Imperial QIS Lilac integrates elegantly into compositions. Its pale mauve spikes, standing tall on robust stems, bring majestic structure to sunny borders. To accentuate this height, pair it with Ammi visnaga, whose white umbels offer airy lightness, and Linum perenne 'Sapphire, which adds a touch of delicate blue. A few notes of scabious 'Black Knight' subtly warm the ensemble. This variety is also excellent for bouquets, thanks to the vase life of its cut flowers, which can even be dried. To prepare for drying, cut the open flowers into small bunches, hang the stems upside down, and store them in a dry, well-ventilated area away from sunlight.

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Delphiniums, larkspur : planting, sowing and care
Family sheet
by Virginie T. 17 min.
Delphiniums, larkspur : planting, sowing and care
Read article

Flowering

Flower colour mauve
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 Deciduous
Foliage colour light green

Plant habit

Height at maturity 1 m
Spread at maturity 35 cm
Growth rate very fast

Safety measures

Potential risks Plant may be toxic if swallowed

Botanical data

Genus

Delphinium

Species

consolida

Cultivar

Lilac

Family

Ranunculaceae

Other common names

Larkspur, Annual Larkspur

Botanical synonyms

Consolida ajacis Imperial QIS® Lilac

Origin

Cultivar or hybrid

Product reference24500

Planting and care

Sow Delphinium Imperial QIS Lilac directly outdoors from April to May in full sun, in fertile, light, well-drained soil that has been well loosened beforehand.

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. When the seedlings are large enough to handle, thin them out by planting only one young plant every 15 cm.

For earlier flowering, sow Delphinium seeds from August to October in 7.5 cm pots using good quality compost kept moist. Place the pots in a propagator 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 sheltered from frost, watering sparingly. Transplant them to their final position the following spring.

Water regularly until the young plants are fully established. Place sturdy sticks among plants when they reach 10cm tall, allowing them to grow upwards while being supported. You can also stake the plants with bamboo canes. Regularly remove faded flowers to encourage renewed flowering. Delphiniums appreciate sunny positions sheltered from wind, as well as fertile soil rich in organic matter and well-drained.

22
7,50 €
8
17,50 €

Sowing period

Sowing period March to May
Sowing method Direct sowing
Germination time (days) 21 days

Intended location

Suitable for Meadow
Type of use Border
Ease of cultivation Amateur
Exposure Sun
Soil pH Neutral, Calcareous
Soil moisture Moist soil, Ordinary, deep, well-worked soil.

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