Share your pictures? Hide split images
I have read and agree the terms and conditions of service.

Cosmos Cosimo Collarette Seeds - Cosmos bipinnatus

Cosmos x bipinnatus Cosimo Collarette
Garden Cosmos, Mexican Aster

Be the first to leave a review

Why not try an alternative variety in stock?

26
From 4,90 € Seeds
Available to order
From 2,50 € Seeds
17
From 7,50 € Seeds
18
From 3,90 € Seeds
7
From 3,90 € Seeds

Shipping country:

Schedule delivery date,

and select date in basket

This plant carries a 6 months recovery warranty

More information

Cosmos 'Cosimo Collarette' is a very attractive selection that displays semi-double to double blooms, delicately suffused with white and soft pink. The abundant blooms appear early and continue all season long on semi-tall, well-branched plants. Easy to grow and effortlessly romantic, Cosmos thrive in light soil in a sunny position.
Flower size
6 cm
Height at maturity
50 cm
Exposure
Sun
Annual / Perennial
Annual
Germination time (days)
12 days
Sowing method
Sowing under cover with heat
plantfit-full

Would this plant suit my garden?

Set up your Plantfit profile →

Sowing period February to April
J
F
M
A
M
J
J
A
S
O
N
D
Flowering time July to October
J
F
M
A
M
J
J
A
S
O
N
D

Description

Cosmos 'Cosimo Collarette' is a very attractive selection that displays semi-double to double blooms, delicately suffused with white and soft pink. The abundant blooms appear early and continue all season long on semi-tall, well-branched plants. 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 capitulums and very fine, feathery foliage. 'Cosimo Collarette' is a recently selected variety, awarded by Fleuroselect for its excellent vigour and the abundance of its blooms. It quickly forms well-branched, semi-tall clumps, about 50 cm tall and 30 cm wide. Flowering starts in July, about 50-60 days after sowing, and lasts until October (or the first frosts). The flower heads measure about 5-7 cm across and are made up of a layer of petals and a small collarette, arranged around a golden central disc. Each petal features delicate shades of soft pink and white. Cosmos are a magnet to 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 to animate romantic or cottage style gardens. Easy to grow even by beginners, this adorable plant with its feathery green leaves and naive flowers bring 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.

Cosmos Cosimo Collarette Seeds - Cosmos bipinnatus in pictures

Cosmos Cosimo Collarette Seeds - Cosmos bipinnatus (Flowering) Flowering

Flowering

Flower colour pink
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 50 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Cosmos

Species

x bipinnatus

Cultivar

Cosimo Collarette

Family

Asteraceae

Other common names

Garden Cosmos, Mexican Aster

Origin

Cultivar or hybrid

Product reference831121

Other Cosmos seeds

18
From 3,90 € Seeds
2
From 2,10 € Seeds
20
6,50 € Seeds
26
6,50 € Seeds
32
From 6,50 € Seeds
17
From 2,90 € Seeds
51
From 4,90 € Seeds

Planting and care

Sow Cosmos seeds from March to May, at a depth of 3mm (0.1 in), in 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 (64.4-77°F) 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 outside. When all risk of frost has passed, gradually acclimatise the plants to outdoor conditions for 7 to 10 days. Plant them in full sun, in a moist, well-drained soil, spaced 45cm (17.7 in) apart. Pinch the tips of the shoots on each stem, during transplantation, to encourage branching and the production of numerous flowers. Cosmos prefer a soil pH between 6 and 8.5, corresponding to the habitat's original soil, the alkaline regions of Central America. They prefer full sun but tolerate partial shade. These plants are drought-tolerant once established, they are not prone to diseases but may be targeted by aphids. Spontaneous seedlings are common but not always true, without becoming invasive.
16
14,50 € Each

Sowing period

Sowing period February to April
Sowing method Sowing under cover with heat
Germination time (days) 12 days

Intended location

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

This item has not been reviewed yet - be the first to leave a review about it.

Leave a review →

Flower seeds

10
From 5,50 € Seeds
16
From 5,90 € Seeds
9
From 3,50 € Seeds
5
From 3,90 € Seeds
4
From 5,50 € Seeds
15
From 6,90 € Seeds
7
From 4,90 € Seeds

Haven't found what you were looking for?

We only deliver seed and bulb products to your country. If you add other products to your basket, they cannot be shipped.