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Celosia argentea var. cristata Red Velvet - seeds

Celosia argentea cristata Red Velvet

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A version of the Crested Cock's Comb amaranth with voluminous velvety deep red flowers vibrantly displayed above tall stems, with a long vase life. Its flowers last a long time and do not fade, even when dried. The plant is resistant to fungal diseases. This original, annual plant carries its colours with flair in the garden. Easy to grow in the sun, in well-drained, moist soil.
Flower size
18 cm
Height at maturity
1 m
Exposure
Sun
Annual / Perennial
Annual
Germination time (days)
15 days
Sowing method
Sowing under cover, Sowing under cover with heat
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Sowing period February to April
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Flowering time July to October
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Description

Celosia argentea var. cristata 'Red Velvet' is an annual Cockscomb with velvety deep red flowers. Its crimped and crisped, vibrant flowers are wide and voluminous on tall and sturdy, unbranched stems. They last a long time in a vase. The plant has good resistance to fungal diseases, Botrytis and Fusarium. Easy to grow in the sun, in well-drained and moist soil.

Celosia argentea var cristata is a herbaceous annual plant of the Amaranthaceae family native to tropical and temperate regions of America and Asia. It is cultivated for ornamental purposes, due to its unusual inflorescences resembling wavy crests, which have earned it the common name of Cockscomb. It is a tender perennial plant with a short lifespan. It likes heat and rich, moist, but well-drained soils.

The 'Red Velvet' Cockscomb has velvety flowers on tall stems ranging from 80 cm to 1.20 m. This astonishing flowering takes place in summer, from July to September, or even until the first frost depending on the sowing date. The plant develops a single, unbranched, ridged stem, with long triangular leaves which are pointed at the end, smooth, light green or sometimes tinged with red to violet. At the end of the stem, a compact, spreading, wavy or pleated inflorescence develops, often with a very velvety appearance. It consists of tiny petal-less flowers, with coloured bracts. Each inflorescence, sometimes reaching 20 cm in diameter, can last up to 8 weeks. Its colour lasts a long time and does not fade, even when dried. After pollination, seeds form and easily germinate in light soil.

Cockscombs are theatrical flowers, with a dramatic temperament that expresses itself well in floral compositions or in the heart of perennial beds and stands out in large pots on terraces. They enhance the simple blooms of field daisies and accompany the blue stars of asters or the delicate flowers of Cosmos. These plants are sensational when planted in groups of 3 to 5 in the middle of a carpet of ground cover plants such as Ceratostigma plumbaginoides with blue flowers or bunny's ears or Stachys with silvery velvety foliage. In a vase, do not put too much water and change it often to avoid stem rot.

Flowering

Flower colour red
Flowering time July to October
Flower size 18 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Annual
Foliage colour green

Plant habit

Height at maturity 1 m
Spread at maturity 40 cm
Growth rate fast

Botanical data

Genus

Celosia

Species

argentea cristata

Cultivar

Red Velvet

Family

Amaranthaceae

Origin

Cultivar or hybrid

Planting and care

Sow finely from March to May, 2-3 mm deep in small furrows spaced 30 cm apart, in soil which has been well-worked and loosened to a depth of 30 cm. Water regularly to maintain some moisture, especially during dry periods. You can also sow in pots or trays filled with moist seed compost, covering the seeds with a very fine pinch of compost or vermiculite. Keep between 20 and 25 °C. Light promotes germination. Keep the surface of the compost moist but not waterlogged; germination usually takes 3 to 15 days. Transplant the young plants into 7.5 cm pots or trays and plant outside once all risk of frost has passed.

 

Amaranths are heat-loving plants that thrive in nitrogen-rich soils. Plant them in full sun, in light and well-amended soil. However, make sure the soil is not waterlogged or too wet, as this could cause the roots to rot.

Sowing period

Sowing period February to April
Sowing method Sowing under cover, Sowing under cover with heat
Germination time (days) 15 days

Intended location

Suitable for Meadow
Type of use Border, Container
Ease of cultivation Amateur
Exposure Sun
Soil pH Any
Soil moisture Moist soil, light and well-amended

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