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Cosmos Xanthos and Rubinato mix seeds - Cosmos bipinnatus
Cosmos Xanthos and Rubinato mix seeds - Cosmos bipinnatus
Cosmos x bipinnatus Xanthos, Rubinato
Common cosmos, Garden cosmos, Mexican aster
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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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Description
The 'Xanthos and Rubinato Mix' Dwarf Cosmos combines two beloved varieties of Cosmos bipinnatus. Charming, with a compact habit, it offers two beautifully contrasting colours, a delightful pastel yellow and a burgundy maturing to pink. This annual plant, adorned with delicate flowers, provides a generous flowering for six months, until autumn, even in dry soil. Its flowers are supported by sturdy stems, enhanced by dark green fennel-like foliage. It adds a touch of charm and poetry to the end of the season, in borders, among perennial plants, and even in containers.
The 'Xanthos and Rubinato Mix' Cosmos is one of the many cultivars of this successful annual. Related to Dahlias, Cosmos belong to the asteraceae family. They have the characteristic flower head inflorescence. 'Xanthos and Rubinato Mix' has particularly fine foliage, described as compound, reminiscent of fennel, slightly and pleasantly scented. This compact variety with strong stems quickly forms a dense and bushy clump 60 cm tall, by 40 cm wide. Early flowering begins in May, lasting until October, only stopping with the first frosts. The 6 cm diameter heads are composed of a crown of pale yellow petals, a colour never achieved in compact varieties, and dark red petals turning pink at maturity. The centre consists of a golden disc. They attract numerous insects and butterflies, including the Monarch.
The 'Xanthos and Rubinato Mix' Cosmos can fill a container from spring to the first frosts or cover a slope or bed with great ease. It generously offers simple flowers, ideal for novice gardeners, as they are almost fail-proof. It brings lightness to the denser flowering of perennial plants while resisting inclement weather well. This annual is perfect for use in pots on terraces or balconies, in rustic settings, in combination with ash trees, grasses such as Stipa tenuifolia, Verbena Venosa, or among other sun-loving flowers like bidens and rudbeckias. The pure flowers also hold up very well in a vase.
Flowering
Foliage
Plant habit
Botanical data
Cosmos
x bipinnatus
Xanthos, Rubinato
Asteraceae
Common cosmos, Garden cosmos, Mexican aster
Cultivar or hybrid
Planting and care
Sow Cosmos Xanthos and Rubinato Mix seeds from March to May, at a depth of 3mm, in a fine compost and cover the seeds with a very light sprinkle of vermiculite. Place the sowing in a propagator at a temperature of 18-25°C or wrap it in a polythene bag. Keep the soil moist but not waterlogged. Light promotes germination, which occurs 7 to 15 days after sowing. When the seedlings are large enough to handle, transplant them into individual pots with a diameter of 7cm. Grow them in cooler conditions until the plants are sufficiently developed to be planted outdoors. Once all risk of frost has passed, gradually acclimatise the plants to outdoor conditions over 7 to 10 days. Plant them in full sun, in moist, well-drained soil, spaced 45cm apart. Pinch the tips of the shoots on each stem during transplantation to encourage stem branching and the production of numerous flowers. Once the frosts have passed, Cosmos can also be directly sown in place in open ground.
Cosmos prefer a soil pH between 6 and 8.5, corresponding to their original habitat soil in the alkaline regions of Central America. They prefer full sun but tolerate partial shade. These plants are drought-resistant once established and not very prone to diseases, but may be targeted by aphids. Spontaneous seedlings are common but not always true, without becoming invasive.
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 zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.