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Cosmos sulphureus Crest Orange Seeds

Cosmos sulphureus Crest Orange
Sulphur Cosmos, Orange Cosmos

5,0/5
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Identical cosmos to the photo. Very vibrant!

Florence, 27/03/2023

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This plant carries a 6 months recovery warranty

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Value-for-money
Cosmos sulphureus 'Crest Orange' is superb selection, often found in seed mixes alongside other yellow or red cultivars. It forms semi-double, bright coppery orange blooms that appear all season long on compact plants. Ideal for borders and containers! Easy to grow and effortlessly romantic, Cosmos thrive in light soil in a sunny position.
Flower size
6 cm
Height at maturity
60 cm
Exposure
Sun
Annual / Perennial
Annual
Germination time (days)
12 days
Sowing method
Direct sowing, Sowing under cover with heat
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Sowing period March to May
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Flowering time July to October
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Description

Cosmos sulphureus 'Crest Orange' is superb selection, often found in seed mixes alongside other yellow or red cultivars. It forms semi-double, bright coppery orange blooms that appear all season long on compact plants. Ideal for borders and containers! Easy to grow and effortlessly romantic, Cosmos thrive in light soil in a sunny position.

Cosmos sulphureus, sometimes called Sulphur Cosmos or Orange Cosmos, is a tender annual plant native to Mexico and the northern regions of South America. It belongs to the Asteraceae family alongside Dahlias and daisies. Like its pink-flowering cousin C. bipinnatus, it features characteristic inflorescences known as capitulums. Its foliage on the other hand is coarser, with broader mid-green leaves. 'Crest Orange' quickly forms compact clumps, 60 cm tall and 30 cm wide. Flowering starts in July, 60 to 90 days after sowing, and lasts until October (or the first frosts). The semi-double flower heads measure about 6 cm across and are made up of slightly crimped bright orange petals arranged around a golden central disc. Cosmos are a magnet to foraging insects and butterflies, including the monarch butterfly. The mid green foliage 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 to animate romantic or cottage style gardens. Easy to grow even by beginners, this adorable, naïve plant produces strong, weather-resistant stems. It combines well with perennial sage, Verbena bonariensis, chrysanthemums or ornamentals grasses such as Stipa tenuifolia. 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.

Cosmos sulphureus Crest Orange Seeds in pictures

Cosmos sulphureus Crest Orange Seeds (Flowering) Flowering

Flowering

Flower colour orange
Flowering time July to October
Inflorescence Flower head
Flower size 6 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Annual
Foliage colour medium green
Aromatic? Fragrant foliage when creased

Plant habit

Height at maturity 60 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Cosmos

Species

sulphureus

Cultivar

Crest Orange

Family

Asteraceae

Other common names

Sulphur Cosmos, Orange Cosmos

Origin

Cultivar or hybrid

Product reference848741

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Planting and care

Sow Cosmos seeds from March to May, at a depth of 3mm (0.1 in), in a fine compost and cover the seeds with a very light sprinkle of vermiculite. Place the seed tray in a mini-greenhouse 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 (2.8 in). Grow them in cooler conditions until the plants are sufficiently developed to be planted outdoors. When all risk of frost has passed, gradually acclimatize the plants to outdoor conditions over a period of 7 to 10 days.

Plant them in a sunny location, in moist, well-drained soil, spaced 45cm (17.7 in) apart. Pinch out 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 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-tolerant once established, they are not very prone to diseases but can be targeted by aphids. Spontaneous seedlings are common but not always true to type, without becoming invasive.

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Sowing period

Sowing period March to May
Sowing method Direct sowing, Sowing under cover with heat
Germination time (days) 12 days

Intended location

Suitable for Meadow, Rockery
Type of use Border, Container, Slope
Ease of cultivation Beginner
Exposure Sun
Soil pH Neutral, Calcareous
Soil moisture Dry soil, Moist soil, draining, not too rich
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