Cosmos bipinnatus Sonata White - Garden Cosmos
Cosmos bipinnatus Sonata White - Garden Cosmos
Cosmos bipinnatus Sonata White - Garden Cosmos
Cosmos bipinnatus Sonata White - Garden Cosmos
Cosmos x bipinnatus Sonata White
Garden Cosmos, Mexican Aster
It was cold for a long time, but only one seedling sprouted! It grew into a beautiful, vigorous plant... But considering the number of seeds, it's a bit disappointing.
Yves, 26/10/2025
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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.
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Description
Cosmos Sonata White Dwarf is a variety belonging to Cosmos bipinnatus. This species typically includes varieties of annual plants that are 100 to 150 cm (39 to 59in) tall. The dwarf habit, 60 cm (24in) tall and compactness of this variety, combined with its large white flowers measuring 7 cm (3in) in diameter, have earned it the gold medal at the Fleuroselect competition.
Very easy to grow, Cosmos is particularly suitable for border and mass planting.
Its large white flowers with yellow centres, borne on finely cut light green foliage, elegantly complement pink, blue, or black flowers.
The long and abundant flowering from June to October is also a significant advantage of Dwarf Cosmos Sonata White.
Eco-friendly tip: Planting a melliferous plant like Cosmos in your garden will attract pollinating insects and butterflies throughout the summer. At the end of the season, allow the last flowers to produce their seeds, which are particularly appreciated by birds. This will encourage them to settle in your garden and play an important role in its ecosystem.
Cosmos bipinnatus Sonata White - Garden Cosmos in pictures
Flowering
Foliage
Plant habit
Botanical data
Cosmos
x bipinnatus
Sonata White
Asteraceae
Garden Cosmos, Mexican Aster
Cultivar or hybrid
Planting and care
Two cultivation options are available to you: Sowing undercover in March-April, followed by transplanting into pots before final planting in your flower beds after the frost. Direct sowing in May (after the last frost), followed by transplanting at a spacing of 30 cm (12in) or simply thinning out excess seedlings. During the summer months, removing faded flowers will promote renewal and extend flowering until autumn.
Sowing period
Intended location
Planting & care advice
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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).
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.