Cosmos Cupcakes Blush seeds - Cosmos bipinnatus
Cosmos Cupcakes Blush seeds - Cosmos bipinnatus
Cosmos bipinnatus Cupcakes Blush
Garden Cosmos, Mexican Aster
More information
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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 bipinnatus 'Cupsy Blush', also known as 'Cupcakes Blush', is the rosy version of the famous 'Cupcakes White'. Its corollas, with fused petals, are like the pleated paper cases used for fairy cakes and muffins. They resemble large, finely pleated cups, sometimes adorned with a few small central petals. An annual that adds tremendous charm to summer cut flower arrangements. Easy to sow and grow in full sun, it flowers until the first frosts.
Cosmos bipinnatus belongs to the Asteraceae family. This botanical species is native to Mexico, where it occupies clearings, roadsides and disturbed ground; it has become naturalised in temperate zones.
'Cupsy Blush' is part of the 'Cupcakes' series, derived from a plant noticed in California in 2007 and passed on to the breeder Thompson & Morgan, who stabilised it through selection. Its 10-12 cm flower heads have ray florets that are fused into a thick and finely notched cup shape, and their colour ranges from pastel pink to barely blushed white. Some flower heads display small central petals that give them a semi-double appearance. It is an annual, upright, fast-growing plant reaching 90cm to 1.20m in height with a spread of 40 to 50cm within a single season. Its slender, channelled stems bear finely divided, medium-green leaves; they may lean over under the weight of the flower heads, especially in exposed, windy sites. Flowering begins 10 to 12 weeks after sowing and repeats from June to October provided spent flowers are regularly removed. It is nectar-rich and beneficial to pollinators. The plant is frost-tender and dies at the first cold spell.
The 'Cupcakes' series won the Fleuroselect Novelty Award 2014, and received a People's Choice award for cosmos at the RHS Wisley gardens.
Sow Cosmos bipinnatus 'Cupcakes Blush' in full sun and well-drained soil, at the edge of a border or near the vegetable patch for weekly cutting. Its light silhouette fits between gauras and fine grasses such as Chinese fountain grass, which will gently support its flowers. You can pair it with Ammi visnaga 'Casablanca', scabious and a few zinnias 'Queen Lime with Blotch'. Discreet staking will keep the stems upright, and your display will retain its natural appearance.
Cosmos Cupcakes Blush seeds - Cosmos bipinnatus in pictures
Flowering
Foliage
Plant habit
Botanical data
Cosmos
bipinnatus
Cupcakes Blush
Asteraceae
Garden Cosmos, Mexican Aster
Cosmos bipinnatus Cupcakes Blush
Cultivar or hybrid
Planting and care
To succeed with Cosmos bipinnatus 'Cupcakes Blush', sow directly outdoors after the last frost when the soil temperature exceeds 15°C, in full sun and in light soil, covering the seeds with about 5 mm of fine soil. Keep the soil slightly moist until germination; then thin out your young plants, leaving one every 35–45 cm.
If sowing under cover in trays, seed pans or pots 4–6 weeks before planting, use a fine, well-drained potting compost kept at 18–20°C, cover very lightly, ventilate and maintain regular moisture without overwatering. Transplant into 7–9 cm pots as soon as the 2–3 true leaf stage is reached, handling the entire root ball to avoid damaging the taproot, then harden off for a week outdoors, sheltered from the wind. Plant out your young cosmos in their final position after all risk of frost has passed and water generously. Pinch out the plants at 20–25 cm from the ground to encourage branching.
Stake in windy sites, water moderately but deeply, avoid nitrogen feeds which lengthen the stems, and watch out for slugs and snails.
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).
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 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.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.