Cosmos Sulphureus (Sulfur Cosmos) Profile

Written by Maggie

Dec 13 2022

Cosmos Sulphureus (Sulfur Cosmos) Profile

Cosmos sulphureus, commonly called Sulfur cosmos, belongs to the Compositae genus. Cosmos sulphureus is multi - branched, when opposite, two back pinnate deep split, lobes were lanceolate, mucronate, leaf margin rough. Cosmos sulphureus can be used for flower bed layout and cut flowers.

Cosmos Sulphureus Picture

Cosmos sulphureus

Morphological Characteristics of Cosmos Sulphureus


Cosmos sulphureus was an annual herb, much branched.


Cosmos sulphureus leaves were opposite pinnate compound leaves, deeply lobed, lanceolate, mucronate, coarsely fronted, and wider than those of the greater Cosmos sulphureus.


Cosmos sulphureus was a tongue-shaped flower with single and double petals, 3-5cm in diameter, and yellow, golden, orange and red.

Cosmos sulphureus was planted in spring and summer from.


Cosmos sulphureus showed an achene with a total length of 1.8-2.5 cm, brownish, hard, coarsely hairy, with a slender beak on the tip, brownish.

Ecological Habits of Cosmos Sulphureus

Cosmos sulphureus was strong and easy to cultivate. cosmos sulphureus likes full of sunshine, not cold.

Cosmos sulphureus was naturally grown below 1600m.

Growing Methods of Cosmos Sulphureus

East China can be from early spring to early summer continuous sowing. The suitable temperature for flowering and growth from early summer to late autumn is 15~35℃. Cosmos sulphureus did not require much soil quality, and Cosmos sulphureus was more suitable for soil with good sediment content and drainage.  

Cosmos sulphureus propagation

Cosmos sulphureus was commonly planted and propagated by cuttings.

Seed Propagation

Spring sowing in spring, 8 to 10 days after sowing, germinate quickly and neatly.

Cutting Propagation

Use young shoots as cuttings in early summer and take root 15-20 days after insertion. After sowing, pay attention to timely thinning, seedlings with 4-5 pieces of true leaves when the heart, and transplant or pot.

Growing period every half a month fertilizes 1 time, but should not be excessive, otherwise the branches and leaves grow in vain, affecting flowering. After the Cosmos sulphureus grows tall, sets up the pillar, preventing the unripe lodging. Seeds mature, easy to fall off, and need to be harvested in time.

Cosmos sulphureus

Disease Control with Cosmos Sulphureus

Cosmos sulphureus was not susceptible to disease, but aphid growth was present near new shoots in early summer. Cosmos sulphureus grew normally with just enough water in poor soil, and was a tough plant that was easy to maintain. Cosmos sulphureus can be grown in a light environment, but care must be taken to prevent the leaves from deforming.

Cosmos Sulphureus Distribution

Cosmos sulphureus was native to Mexico.

Cosmos sulphureus main value

Cosmos sulphureus was large and brightly coloured, but the plant shape was not very orderly, and it was best to plant multiple plants or patches. Also Cosmos sulphureus can make use of its self-sowing reproduction characteristics, with other perennial flowers, there are in flower border planting, or lawns and forest edge of the natural type planting. Low compact plants with dense flower heads, can be used for flower bed arrangement and cut flowers.

Cosmos Sulphureus Flower Language

Cosmos sulphureus flower language is wild beauty.

Cosmos sulphureus