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Cosmos Xanthos Seeds - Cosmos bipinnatus

Cosmos x bipinnatus Xanthos
Garden Cosmos, Mexican Aster

4,5/5
13 reviews
2 reviews
0 reviews
1 reviews
1 reviews

Surprenant yellow qui viré au blanc, but very beautiful cosmos

Catherine, 11/04/2021

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This plant carries a 6 months recovery warranty

More information

Cosmos 'Xanthos' is an award-winning selection that features unique, soft yellow daisy-like blooms over dark green, ferny foliage. Flowering starts early and continues 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
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Sowing period March to May
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Flowering time June to October
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Description

Cosmos 'Xanthos' is an award-winning selection that features unique, soft yellow daisy-like blooms over dark green, ferny foliage. Flowering starts early and continues 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 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. 'Xanthos' quickly forms well-branched, compact clumps, about 60 cm tall and 40 cm wide. Flowering starts as early as May-June 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 arranged around a golden central disc. Flowers are soft yellow with a discreet white eye. 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.

Flowering

Flower colour yellow
Flowering time June to October
Inflorescence Flower head
Flower size 6 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Annual
Foliage colour dark green

Plant habit

Height at maturity 60 cm
Spread at maturity 40 cm
Growth rate fast

Botanical data

Genus

Cosmos

Species

x bipinnatus

Cultivar

Xanthos

Family

Asteraceae

Other common names

Garden Cosmos, Mexican Aster

Origin

Cultivar or hybrid

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Planting and care

Semer des graines de Cosmos de mars à mai, à une profondeur de 3mm, dans un terreau fin et couvrir les graines avec une très fine pincée de vermiculite. Placez le plateau de graines dans une mini-serre à une température de 18-25 ° C ou l'envelopper dans un sac en polyéthylène. Garder le sol humide mais pas détrempé. La lumière favorise la germination, qui intervient 7 à 15 jours après le semis. Lorsque les semis sont assez grands pour être manipulés, transplantez-les dans des pots individuels de 7cm de diamètre. Cultivez-les dans des conditions plus fraîches jusqu'à ce que les plants soient suffisamment développés pour être plantés à l'extérieur. Lorsque tout risque de gel est écarté, acclimatez-les plants progressivement aux conditions extérieures pendant 7 à 10 jours. Installez-les en pleine terre à une exposition très ensoleillée, dans un sol humide, bien drainé, espacés de 45cm. Pincer l'extrémité des pousses sur chaque tige, lors de la transplantation, pour encourager la ramification des tiges et la production de nombreuses fleurs. Une fois les gelées passées, les Cosmos peuvent également être semés directement en place en pleine terre.

Les Cosmos préfèrent un sol au PH compris entre 6 et 8.5, correspondant au sol de habitat d'origine, les régions alcalines d'Amérique Centrale. Ils préfèrent le plein soleil, mais tolèrent la mi- ombre. Ces plantes sont résistantes à la sécheresse une fois installées, elles sont peu sujettes aux maladies, mais peuvent être la cible des pucerons. Les semis spontanés sont fréquents, mais pas toujours fidèles, sans pour cela devenir envahissants.

Sowing period

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

Intended location

Suitable for Meadow
Type of use Border, Container
Ease of cultivation Beginner
Exposure Sun
Soil pH Any
Soil moisture Moist soil, léger, drainant
4,5/5

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