Sulfur cosmos - Cosmos sulphureus (Care, Characteristics, Flower, Images)

Sulfur cosmos

Also known as: Orange cosmos, Klondike cosmos

Sulfur cosmos (Cosmos sulphureus) is an annual flowering plant native to Mexico, Central America, and South America. Though widely used as an ornamental plant, sulfur cosmos is considered an invasive species in the United States. It attracts bees and butterflies, including the notable monarch butterfly.

Scientific classification

Species

Sulfur cosmos (Cosmos sulphureus)

Asters bellflowers fanflowers and allies

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Annual

Lifespan

Herb

Plant Type

Summer, Fall, Early winter

Bloom Time

All year round

Harvest Time

60 cm to 1 m

Plant Height

35 cm to 40 cm

Spread

Green

Leaf Color

3 cm to 5 cm

Flower Size

Yellow, Red, Orange

Flower Color

Green, Red, Yellow, Orange

Stem Color

Winter dormancy

Dormancy

Deciduous

Leaf type

20 - 35 ℃

Ideal Temperature

Spring, Summer, Fall

Growth Season

Rapid

Growth Rate

Images of Sulfur cosmos

Distribution of Sulfur cosmos

Distribution Map

Sulfur cosmos is a wildflower native to prairies and meadows in Central America. This plant is widely grown ornamentally for its bright flowers. This has led to its spread as an introduced species in scores of countries across all continents except those in the polar circles.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Roadsides

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

Sulfur cosmos can be used as flower borders or clustered in flowerbeds. This is a common, popular plant that is used to fill space and add visual appeal with its clusters of bright blooms. Prized for this appearance, it is used to attract a variety of butterflies and hummingbirds to help pollinate and attract predator insects that manage plant pests. They grow well in any region and fit any type of garden, specifically in cutting gardens and cottage gardens. They are often planted with Cannas, whose unique, bright blooms blend well with their own.

Symbolism

Young girl's heart

Interesting Facts

It is said that girls in Europe often include a sulfur cosmos in their love letters. This flower represents the good intentions of a young girl who is shy and expectant, joyful while uneasy.

Name Story

Sulfur cosmos||Yellow cosmos||Orange cosmos: Most of the Mexican herbs from the Cosmos genus are featured with radiate heads with various colored flowers and pinnate leaves. Hence, it is given the name cosmos. The plant can sprout different colored flowers such as yellow-orange or yellow sulfur. Therefore, it is called different names like sulfur cosmos, yellow cosmos or orange cosmos.

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Cultivars

There are several recognized cultivars of Sulfur cosmos, including the following common varieties :

Sulfur cosmos 'Cosmic Yellow'Sulfur cosmos 'Bright Lights'Sulfur cosmos 'Cosmic Red'Sulfur cosmos 'Cosmic Orange'

Quickly Identify Sulfur cosmos

Vivid double blooms in orange, red, and yellow, 1-2 inches across.

Distinct dimorphic involucral bracts in two rows around flowers.

Oppositely arranged pinnatifid leaves, creating a lush backdrop.

Long-lasting daisy-like flowers with yellow discs and obovate petals.

Compound leaves with deeply cleft, feathery appearance, up to 12 inches long.

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Care Guide for Sulfur cosmos

Twice per week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Sulfur cosmos thrives in warm, moist tropical conditions and is drought-tolerant once established. Water twice a week, allowing the soil to dry slightly. As a sun-loving outdoor plant, sulfur cosmos requires extra watering during peak growing season for vibrant flowers.

Fertilize: Sulfur cosmos benefits from high phosphorus fertilizers for blooming, with balanced, slow-release fertilization every 4-6 weeks during growth. Use about 1 tablespoon per square foot, avoiding over-fertilization. Adjust feeding in cooler months and water well post-fertilization to prevent root burn.

Pruning: Sulfur cosmos features vibrant orange flowers and feathery leaves, thriving with regular pruning in early to late spring. Remove spent flowers and dead stems for health, avoiding heavy pruning due to its delicate structure. Pruning promotes air circulation and reduces disease risk; consult horticultural guides for specific care.

Propagation: Sulfur cosmos propagates easily by sowing in Spring. Look for healthy seedling emergence as a sign of success. For optimal results, provide well-drained soil and ample light.

Repotting: Transplant yellow cosmos to pots when seedlings reach a height of 6-8 cm (2.4-3.2 inches) to ensure healthy growth.

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Images of Sulfur cosmos

Distribution of Sulfur cosmos

Culture

Cultivars

Quickly Identify Sulfur cosmos

Care Guide for Sulfur cosmos

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