Calotropis

Description

Calotropis is a genus of flowering plants that belongs to the family Apocynaceae. It is native to Africa, Asia, and Australia, but is now found in many other parts of the world. The plant is also known as Crown flower, Giant milkweed, and Swallow-wort. Calotropis grows as a shrub or small tree and can reach a height of up to 6 meters. It is known for its fragrant flowers, which are often used in traditional medicine.

Taxonomic Information

Appearance

Calotropis has large, waxy leaves that are green on top and silver underneath. The leaves can grow up to 30 centimeters long and 20 centimeters wide. The plant produces clusters of fragrant flowers, which can range in color from white to pink to purple. The flowers have a distinctive crown-like shape and can be up to 5 centimeters in diameter. The fruit of the Calotropis plant is a large, woody pod that contains many seeds.

Care Guide

Calotropis is a relatively easy plant to care for. It prefers well-draining soil and can tolerate dry conditions. However, it does require regular watering during the growing season. The plant also benefits from fertilization with a balanced fertilizer every 2-3 months. Calotropis grows best in full sunlight, but can tolerate some shade. It is hardy in USDA zones 10-12.

Common Pests & Diseases

Calotropis is relatively pest and disease resistant. However, it can be susceptible to mealybugs, scale insects, and spider mites. These pests can be controlled with insecticidal soaps or oils. The plant can also be affected by root rot if over-watered or planted in poorly draining soil.

Habitat

Calotropis is native to dry, tropical regions of Africa, Asia, and Australia. It grows in a variety of habitats, including open fields, forests, and along roadsides. The plant is often used for erosion control and as a source of fiber, medicine, and fuel.

Question and Answer

Q: What is Calotropis used for in traditional medicine?
A: The leaves, flowers, and sap of Calotropis are used in traditional medicine to treat a variety of ailments, including fever, diarrhea, and skin conditions.

Q: Can Calotropis be grown indoors?
A: While Calotropis prefers full sunlight, it can be grown indoors if placed near a sunny window.

Q: Is Calotropis a drought-tolerant plant?
A: Yes, Calotropis can tolerate dry conditions, but regular watering is still necessary during the growing season.

Q: Can Calotropis be propagated from cuttings?
A: Yes, Calotropis can be propagated from stem cuttings taken in the spring or summer.

Related Plants

• Asclepias curassavica
• Asclepias tuberosa
• Gomphocarpus fruticosus
• Gomphocarpus physocarpus

References

• “Calotropis gigantea.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=a592
• “Calotropis procera.” PlantZAfrica, www.plantzafrica.com/plantcd/calotropisproc.htm
• “Crown Flower Plant: How to Grow and Care for Calotropis Gigantea.” Gardening Know How, www.gardeningknowhow.com/ornamental/flowers/crown-flower-plant.htm