Astéracées • Cosmos sulphureus

Cosmos Japanese Kiiro - Bio

"Bright sunshine in the garden, lightness and golden radiance."

$4.49

Number of seeds

The delicate flowers of the cosmos are veritable pollinator magnets , and the 'Kiiro' cultivar is no exception. Introduced in 2019 , this variety is distinguished by its very pale yellow flowers , with petals slightly tinged with peach on the reverse , which bloom elegantly at the top of slender stems that can reach 1.2 m .

Flowering begins as early as July and continues until October , ensuring a continuous presence in the garden and effective pollination. Its appeal to bees and beneficial insects makes it a valuable ally for vibrant gardens.

Undemanding, the 'Kiiro' cosmos prefers light, well-drained, and infertile soils . In overly rich soil, it tends to produce more foliage at the expense of flowers. Planted in full sun, it offers an airy and poetic display throughout the summer.

  • Growing climate: Temperate to warm climate
  • Sowing difficulty level: Easy
  • Care required: Occasional

Native to Mexico, Guatemala and Costa Rica, introduced to Japan in the 17th century, it has become a symbol of sweet nostalgia and the declining season.

The 'Kiiro' cultivar, with its yellow hues, evokes the golden light of autumn evenings, inviting us to slow down and observe. In many regions, cosmos flowers accompany late summer festivals, like floral witnesses to a cycle gently drawing to a close.

Today, it is sown as much for its elegance as for its ecological role, perpetuating a tradition of living garden, where aesthetics and balance meet naturally.

Cosmos Japanese Kiiro - Bio

$4.49

$4.49

écoumene seeding advice

Seeding type

Indoor seeding

Germination time

7-10 days

Germination temperature

21° to 27° Celsius

Sowing depth

Sowing at a depth of 5 mm

Transplantation

Easy transplantation

Technical

Seeding in clusters

Growing conditions

Hardiness zone

Zone-3b

Distance between plants

30 cm

Optimal brightness

Sun plant

Soil texture

Loose (silty) soil

Soil moisture

Dry soil

Soil fertility

Plant not very demanding in bacteria-dominant compost

optimal soil pH

Plant indifferent to pH

Average plant height

110 cm

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