Coix

Description

Coix, commonly known as Job’s tears, is a species of cereal grain with a scientific name Coix lacryma-jobi. It belongs to the family Poaceae and is native to Southeast Asia but is now widely cultivated in other parts of the world. This plant has been used for various purposes, including food, medicine, and ornamental purposes.

Taxonomic Information

Appearance

Coix plants have tall, slender stems that can reach up to 2 meters in height. They have long, narrow leaves that can grow up to 50 cm long and 2.5 cm wide. The leaves are green and have a rough texture. The flowers of the Coix plant are small and inconspicuous, with male and female flowers on separate plants. The male flowers are yellowish-green, while the female flowers are reddish-brown. The fruit of the Coix plant is a hard, round seed that is white, brown, or black in color. The seed has a hole in the center that makes it resemble a tear, hence the name Job’s tears.

Care Guide

Coix plants require regular watering, especially during the growing season. They prefer moist but well-drained soil and should be fertilized with balanced fertilizer every 4-6 weeks. Coix plants require full sun to grow well, but they can tolerate partial shade. They are hardy in USDA zones 9-11.

Common Pests & Diseases

Coix plants are relatively pest and disease resistant, but they can be affected by fungal diseases such as powdery mildew and rust. Pests such as aphids, spider mites, and caterpillars can also infest Coix plants.

Habitat

Coix plants are native to Southeast Asia but are now widely cultivated in other parts of the world, including Africa, South America, and the United States. They prefer warm, humid climates and grow well in tropical and subtropical regions.

Question and Answer

Q: Can Coix plants be grown indoors?

A: Coix plants can be grown indoors as long as they receive plenty of sunlight and are kept in a warm, humid environment.

Q: Can Coix plants be eaten?

A: Yes, Coix seeds are edible and are used in various dishes in Southeast Asian cuisine.

Q: Are Coix plants drought-tolerant?

A: No, Coix plants require regular watering and should not be allowed to dry out.

Q: How long does it take for Coix seeds to germinate?

A: Coix seeds can take up to 2 weeks to germinate, depending on the temperature and humidity.

Related Plants

• Corn
• Rice
• Wheat
• Barley

References

• Coix lacryma-jobi. (n.d.). Retrieved from https://www.plants.usda.gov/core/profile?symbol=COLA4
• Job’s tears. (n.d.). Retrieved from https://www.britannica.com/plant/Jobs-tears
• Job’s tears: Uses, side effects, interactions, dosage, and warning. (n.d.). Retrieved from https://www.webmd.com/vitamins/ai/ingredientmono-332/jobs-tears