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Delphinium Green Twist - Perennial Larkspur seeds

Delphinium x elatum Green Twist
Candle Larkspur, Tall Larkspur, Perennial Larkspur

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This magnificent Delphinium is the result of a long selection process that has allowed to establish the variety for sowing. It produces tall, majestic inflorescences in summer, adorned with double flowers, in an unusual and very pleasant blend of cream-white shaded with chartreuse green, sometimes punctuated with creamy green spots, sometimes immaculate. These robust and structuring plants bring a real personality to perennial borders. To be grown in rich, fresh, loose soil and in the sun.
Flower size
3 cm
Height at maturity
1.30 m
Exposure
Sun, Partial shade
Annual / Perennial
Perennial
Germination time (days)
21 days
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Sowing period March to May
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Flowering time June to July
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Description

The Delphinium Green Twist, also known as Larkspur, is a magnificent plant and the result of extensive selection work that has fixed the variety for sowing. It produces tall, majestic inflorescences in summer, adorned with double flowers that are somewhat waxy, in an unusual and very pleasing mix of cream-white delicately shaded with chartreuse green at the center of the petals, sometimes maculated with creamy green specks, sometimes immaculate. These plants, both robust and architectural, bring real personality to perennial plant beds. They should be grown in rich, fresh, loose soil in full sun.

The Green Twist Delphinium is one of the many hybrids obtained by cross-breeding D. elatum, which gave rise to the famous "Pacific Giant" series. This variety, already cultivated in New Zealand, required extensive selection work in order to be faithfully propagated by sowing. It is a short-lived herbaceous perennial plant forming a clump of very finely divided palmate foliage, tender green in color, from which emerge tall flower spikes measuring 1.20 m (3.3 ft) in height, an imposing size, but they are borne by sturdy plants. Flowering occurs in June-July, and the flowers are highly attractive to pollinating insects. The flowers are very numerous, well double, open in cups, tightly packed on large upright spikes, and display individually varied colors, but always in a harmony of cream-white and chartreuse green, with a waxy texture, somewhat reminiscent of tuberose flowers. The plant develops from a woody rootstock that vertically penetrates the soil.

The characteristic silhouette of Delphiniums always adds volume, verticality, and a lot of charm to perennial plant beds. They are also good companions for moss or Gallic roses, with which they create charming and romantic compositions. Another beautiful combination can be made with soft orange daylilies and the baby's breath variety Rosenschleier. This subtly nuanced variety will also blend well with other green flowers, such as those of the 'Double Envy' Zinnia, for example. Its flowers hold up well in bouquets.

Delphinium Green Twist - Perennial Larkspur seeds in pictures

Delphinium Green Twist - Perennial Larkspur seeds (Flowering) Flowering

Flowering

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

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 1.30 m
Spread at maturity 35 cm
Growth rate normal

Safety measures

Potential risks Plant may be toxic if swallowed

Botanical data

Genus

Delphinium

Species

x elatum

Cultivar

Green Twist

Family

Ranunculaceae

Other common names

Candle Larkspur, Tall Larkspur, Perennial Larkspur

Origin

Cultivar or hybrid

Product reference402111

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Planting and care

Sow Delphnium Green Twist from February to June in a good quality, well-drained soil, and lightly cover the seeds with a fine pinch of compost or vermiculite. Place the seed tray in a mini-greenhouse at a temperature of 10-13°C (50 - 55.4 °F), or seal a transparent polyethylene bag and place it in a dark place until germination, which takes 1 to 3 months. Keep the compost moist but not wet. When the seedlings are large enough to handle, transplant them into 8 cm (3.1 in) pots and move the Delphinium plants to cooler conditions. When all risk of frost has passed, gradually acclimatize the young plants to outdoor conditions for 7 to 10 days before planting them outside in the ground. Plant Delphiniums at a distance of 45cm (17.7 in) in moist, fertile, well-worked and well-drained soil. Delphiniums dislike stagnant moisture. Choose a sunny location sheltered from strong winds. Stake the flower spikes, or support your plants on other perennials or bushes. Protect young delphiniums from attacks by slugs and snails.
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Sowing period

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

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Back of border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil moisture Moist soil, Fertile, loose, worked deeply

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