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Delphinium Deep red - Annual red Larkspur seeds

Delphinium Kingsize Scarlet
Larkspur, Perennial Larkspur

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This plant carries a 6 months recovery warranty

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This annual Delphinium is a new variety with red flowers, undoubtedly the best in its category. This immense plant produces a profusion of tall spikes covered in scarlet and shiny flowers in a single year. Fabulous in bouquets, these flowers will make a statement at the back of borders, creating a sumptuous backdrop behind perennials. Easy to grow, it can be sown directly in open ground, in borders or edging, in sunny, rich and moist soil.
Flower size
3 cm
Height at maturity
1.20 m
Exposure
Sun
Annual / Perennial
Annual
Germination time (days)
18 days
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Sowing period March to May
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F
M
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M
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S
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D
Flowering time June to August
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F
M
A
M
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Description

The Delphinium or Larkspur Kingsize Scarlet is a new variety with red flowers, undoubtedly the best in its category. This tall plant produces a profusion of large spikes covered with bright pink to scarlet flowers in the year of sowing. These flowers are fabulous in bouquets and will make a stunning backdrop for perennial plants. Easy to grow, it can be sown directly in the ground, in flowerbeds or borders, in rich and moist soil, in full sun.

The Delphinium Kingsize Scarlet is one of the many hybrids obtained by cross-breeding D. elatum and D. grandiflorum, which gave rise to the famous "Pacific Giant" series. It is a hardy annual plant with rapid growth, forming a wide clump of 34 to 40 cm (13.4 - 15.7 in) in diameter, with deeply divided palmate foliage in tender green, from which emerge floral stems of at least 120 cm (47.2 in) in height in summer. The flowering period lasts from June to September, and the flowers are highly attractive to pollinating insects. The flowers resemble those of large-flowered clematis, they are single, cup-shaped, arranged on tall upright spikes, and display uniformly bright red to pink petals. The plant develops from a woody rootstock that grows vertically into the soil.

The characteristic silhouette of Delphiniums always adds grandeur, verticality, and charm to perennial plant beds. The 'Kingsize Scarlet' selection allows for the quick creation of a theatrical yet elegant display by sowing directly in the ground. Delphiniums are also good companions for moss or gallica roses, creating charming and romantic compositions. Another beautiful combination can be made with blue Delphiniums and the baby's breath Rosenschleier. This variety is well-suited for creating bouquets, as its flowers are particularly long-lasting in a vase.

Delphinium Deep red - Annual red Larkspur seeds in pictures

Delphinium Deep red - Annual red Larkspur seeds (Flowering) Flowering

Flowering

Flower colour red
Flowering time June to August
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 1.20 m
Spread at maturity 35 cm
Growth rate normal

Safety measures

Potential risks Plant may be toxic if swallowed

Botanical data

Genus

Delphinium

Cultivar

Kingsize Scarlet

Family

Ranunculaceae

Other common names

Larkspur, Perennial Larkspur

Origin

Cultivar or hybrid

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Planting and care

Sow the seeds of the Kingsize Scarlet Delphinium directly outdoors from April to May, in full sun, on a fertile, light, well-drained soil that has been thoroughly loosened beforehand. Bury the fine seeds to a depth of 6mm (0.2 in) in small holes spaced 30cm (11.8 in) 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 seedling every 15cm (5.9 in). To achieve earlier flowering, sow Delphinium seeds from August to October in 7.5cm (2.8 in) 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 (59-68°F) 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 by 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 plants that are 10cm (3.9 in) tall, which will allow them to grow upright while being supported. You can also stake the plants with bamboo canes. Regularly remove faded flowers to encourage renewed flowering. 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) 18 days

Intended location

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

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Flower seeds

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