Celosia cristata: Captivating Beauty of the Cockscomb Flower

Celosia cristata, also known as the Cockscomb flower, is an annual herbaceous plant that blooms in the summer and autumn. Its flowers, often in a vibrant red color, are shaped like a rooster’s comb, hence the name.

Originating from Africa, the tropical regions of America, and India, it is now widely cultivated across the globe, with a variety of forms including cockscomb, torch, velvet ball, feather, and fan-shaped, and colors such as bright red, orange-yellow, dark red, purple, white, and mixed red-yellow.

The Cockscomb flower also has strong medicinal value, with sweet, astringent, and cooling properties. It is often used in treatments for hemoptysis, metrorrhagia, bloody stool, hemorrhoids, dysentery, and leukorrhea.

I. Physical Features

The Cockscomb flower is an annual upright herb, standing 30-80cm tall. The entire plant is hairless and robust. It has few branches, which are flat towards the top, green or red in color, with raised ridges.

The leaves are alternate and stalked; leaf blades are 5-13cm long and 2-6cm wide, tapering at the ends and narrowing at the base into a stalk, with smooth edges.

The flowers are numerous below the middle part; the bracts, small bracts, and tepals are dry membranous and persistent. The ovary is ovate, about 3mm long, splitting when ripe, and enveloped in persistent tepals.

The seeds are kidney-shaped, black, and shiny.

II. Growing Environment

The Cockscomb flower prefers warm and dry climates, is drought-resistant, loves sunlight, and does not tolerate waterlogging. However, it is not strict with soil requirements and can be planted in common garden soil.

III. Distribution Range

The Cockscomb flower, originating from Africa, tropical America, and India, is now widely cultivated worldwide.

IV. Growth and Reproduction

Seeds are used for propagation. In early April, select a good plot of land, apply sufficient base fertilizer, plow finely, rake evenly, and level the ridges. Scatter the seeds evenly on the ridge surface, slightly cover the seeds, tread firmly, and water thoroughly.

Generally, at temperatures between 15-20℃, seedlings can emerge within 10-15 days. If sowing in summer, it can be intercropped with peonies, white peony root, or other crops, with a seed usage of one pound per acre.

When the seedlings are about 2 inches tall, thin them out so there is about a foot between rows, and 8 inches between plants. The removed seedlings can be transplanted to other fields, and make sure to water them after transplanting.

Weeding and soil loosening are essential during the seedling stage. Avoid watering too much during dry periods. When the seedlings are about a foot tall, apply top dressing once. After earthing up, appropriately remove the old leaves.

During flowering and heading, if the weather is dry, water appropriately, and prevent water stagnation in low-lying areas during the rainy season. After heading, remove the flower buds between the lower leaf axils to help concentrate nutrients to the main spike’s growth at the top.

V. Disease Control

Symptoms of Damage

Leaf Spot Disease:

Cockscomb Leaf Spot Disease

This disease often occurs on the lower leaves of the plant. The pathogen is a fungus from the semi-known Ascomycota, Claviceps purpurea, whose mycelium and spores hibernate in the plant residues and soil, spreading through wind, rain, irrigation, and splashing water.

• Initially, the disease spots appear as small brown patches, which then expand into circular or elliptical spots. The edges darken to a purplish-brown, while the centers turn a grayish-brown to grayish-white.
• In humid weather conditions, a pink mold-like substance appears on the disease spots, signifying the asexual spores of the pathogen.
• In the later stages of the disease, the infected leaves wilt, dry out, or fall off, creating holes.

Disease Control Techniques

• Timely removal of diseased leaves.
• In the early stages of the disease (when spots appear on the lower leaves), use a 0.2 to 0.5% potassium permanganate solution, or a 1000-times diluted 50% methyl tobujin wettable powder, or a 500-times diluted 50% mancozeb wettable powder to spray and control the disease.
• In affected areas, avoid continuous cropping, and instead, rotate with other flowers or crops every 2 to 3 years.

Pesticide Control

• Spray pesticide timely during the early stages of the disease. The pesticides include 1:1:200 Bordeaux mixture, 50% methyl tobujin wettable powder, 50% mancozeb wettable powder diluted 500 times, 40% bacteria poison clear suspension diluted 600 to 800 times, or mancozeb zinc wettable powder diluted 300 to 500 times.
• In addition to using diluted detergents, modern pest control methods also include planting some plants that repel insects, or releasing beneficial insects that eat the pests.

VI. Main Values

Ornamental Value

Cockscombs come in a variety of types, with three different plant heights: tall, medium, and short. They come in various shapes, like a cock’s comb, torch, pom-pom, feather, or fan; and colors like bright red, orange-yellow, dark red, purple, white, or mixed red and yellow.

Their leaves can be deep red, emerald green, yellow-green, or red-green, making them a popular choice for flower beds in the summer and autumn seasons.

Medicinal Value

Sweet, cool.

Main Functions

Cooling the blood, stopping bleeding. Used for treating bleeding hemorrhoids, bloody diarrhea, vomiting blood, coughing up blood, bloody urine, women’s metrorrhagia, red and white leukorrhea.