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Cosmos Double All Sorts Mixed Seeds - Cosmos bipinnatus
Zero success (I must not be very skilled at sowing...)
M-Odile, 04/08/2022
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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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Cosmos Double All Sorts Mixed is a wonderful collection featuring blooms in a wide array of colours and forms. The single, semi-double and fully double flowers are solid or two-toned, sometimes with stripes and picotees. Colours include rose, bright pink, mauve, ruby red, deep burgundy and white. The abundant blooms appear all season long on tall plants, ideal for cutting! Easy to grow and effortlessly romantic, Cosmos thrive in light soil in a sunny position.
Cosmos bipinnatus is a tender annual plant native to Mexico and the southernmost part of the United States. It belongs to the Asteraceae family alongside Dahlias and daisies, featuring the characteristic inflorescences known as capitula and very fine, feathery foliage. Double All Sorts Mixed quickly forms large clumps, about 110 cm (43.3 in) tall and 50 cm (19.7 in) wide. Flowering starts in June, 60-90 days after sowing, and lasts until October (or the first frosts). The flower heads measure between 5 and 7 cm (2 and 2.8 in) across and are made up of one or several layers of petals arranged around a golden central disc. The single, semi-double and fully double flowers display a host of harmonious shades including pale pink, deep red and white shades depending on the plant. Cosmos are a magnet for foraging insects and butterflies, including the monarch butterfly. The finely cut, cloud-like foliage resembles fennel leaves and is delicately scented. Flowers are followed by blackish, spiky seed heads (achenes).
Cosmos is an easy-going, rewarding annual that can single-handedly fill a sunny slope, border or flower bed. It is perfect for livening up romantic or cottage-style gardens. Easy to grow even by beginners, this adorable plant with its feathery green leaves and naive flowers brings light and airiness to heavier blooms such as Dahlias. It combines well with perennial sage, Verbena bonariensis and chrysanthemums until the first frosts. It is particularly useful in new gardens mixed with poppies, love-in-a-mist or cornflowers. Its pretty blooms have a long vase life and are ideal for cutting.
Flowering
Foliage
Plant habit
Botanical data
Sow Cosmos seeds from March to May, at a depth of 3 mm (0.1 in), in a fine soil and cover the seeds with a very small pinch of vermiculite. Place the seed tray in a mini-greenhouse at a temperature of 18-25 °C (64.4-77 °F) or wrap it in a polyethylene 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 7 cm (2.8 in). Grow them in cooler conditions until the plants are sufficiently developed to be planted outside. When all risk of frost has passed, gradually acclimatise the plants to outdoor conditions for 7 to 10 days.
Plant them outdoors in a very sunny location, in a moist, well-drained soil, spaced 45 cm (17.7 in) apart. Pinch the tips of the shoots on each stem, during transplantation, to encourage branching of the stems and the production of numerous flowers. Cosmos prefer a soil with a pH between 6 and 8.5, corresponding to the soil of their native habitat, the alkaline regions of Central America. They prefer full sun but tolerate partial shade. These plants are drought-resistant once established. They are not prone to diseases but can be targeted by aphids. Spontaneous seedlings are frequent but not always faithful, 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 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.