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Cornflower Red Boy Seeds - Centaurea cyanus
Cornflower Red Boy Seeds - Centaurea cyanus
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Dispatch by letter from €3.90.
Delivery charge from €5.90 Oversize package delivery charge from €6.90.
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This plant carries a 6 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Seed-only orders are dispatched by sealed envelope. The delivery charge for seed-only orders is €3.90.
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Centaurea cyanus Red Boy is a very beautiful variety derived from the wild, annual cornflower, also called bachelor's button. Its flowers are full double blooms and are of very richly nuanced shades of red, tinged with carmine pink. Just like the adorable annual weed which was once so widespread in the countryside, wandering even as far as into our cereal crop fields, they paint a somewhat naïve but unforgettable picture. Very decorative in large drifts, these cornflowers are perfect in wildflower bouquets and bloom for months on end if care is taken to remove the flowers as they wilt.
Cornflowers of the 'Red Boy' variety belong to the Asteraceae family. It is a cultivar derived from Centaurea cyanus, an annual herbaceous plant native to Europe and North Asia that has long been considered an invasive weed in cereal crops and is one of the most beautiful wildflowers of our regions. It forms an upright clump with tender stems, reaching 80-90 cm (2 ft 8-3 ft) high and 25 cm (10 in) wide, that bear very narrow, long, greyish-green leaves. The flowering period lasts from June to August, displaying inflorescences in the form of double flower heads of 3 cm (1.2 in) in diameter. The ligulate flowers (or the petals surrounding the centre) are indented at their tips and come in a hue ranging carmine to magenta, while the centre of the inflorescence is made up of florets of a darker red. The blooms are very melliferous and nectar-rich. The fruit is an achene that contains seeds that easily self-sow in light soil. The seedlings produced from spontaneous self-sowing will not necessarily be identical to the parent plants.
Cornflowers are enchanting in flowerbeds where they form remarkable patches of colour. The variety 'Red Boy', a delightful descendant of the most famous of them all, brings the charm of the countryside to our gardens. Sow cornflower in wild-looking beds, combined with ornamental grasses such as Stipa tenuifolia or Muhlenbeckia capillaris. Add to the mix its brother 'Blue Boy', alongside common poppies, blue or white love-in-a-mist, annual or oriental poppies, tall daisies, thistles (Eryngium, Echinops), or chamomile. The edible flowers can be used to decorate summer salads. It is also an excellent cut flower.
Flowering
Foliage
Plant habit
Botanical data
Sow cornflower 'Red Boy' seeds outdoors, in their final position, in March-April. Choose a sunny spot with well-drained soil that has been well prepared and raked to a fine tilth. Sow thinly, to a depth of 3 mm (0.2 in), spacing the seeds 30 cm (1 ft) apart. Water regularly, especially during dry periods. Germination usually takes 14-21 days. When the cornflower seedlings are large enough to handle, transplant them 50 cm apart.
An alternative is to sow them indoors from August to September to obtain blooms at the beginning of the following summer. Sow the cornflowers on the surface of good quality soil at a temperature of 18-23 °C, and cover with a sprinkling of very fine garden compost or vermiculite. Keep the seedlings in the light as this helps germination. When the seedlings are large enough to be moved, transfer and grow them in a sheltered location from the cold until the seedlings are large enough to be moved outdoors. Grow the cornflower seedlings in a frost-free place before planting out the following spring, or prick them out into pots. Cornflowers thrive in fertile, well-drained, fine tilth soil, in full sun.
Sowing period
Intended location
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.