Calliandra

Description

Calliandra is a genus of flowering plants in the legume family, Fabaceae, native to the Americas. It comprises about 200 species of shrubs and small trees that are highly valued for their ornamental flowers and foliage. The most commonly cultivated species is Calliandra haematocephala, which is also known as powderpuff tree or red powderpuff.

Taxonomic Information

Appearance

Calliandra plants are characterized by their fern-like leaves and showy flowers. The leaves are pinnately compound, with small leaflets that give them a delicate appearance. The flowers are round or globular, resembling powder puffs, and come in shades of pink, red, or white. They bloom in clusters from spring to fall, attracting bees and other pollinators.

Care Guide

Calliandra plants are relatively easy to care for, as long as you provide them with the right conditions. Here are some tips for growing healthy Calliandra:

• Water: Calliandra plants prefer well-draining soil that is kept consistently moist. Water them deeply once a week, or more often in hot weather.
• Fertilization: Feed Calliandra plants with a balanced fertilizer every 2-3 months during the growing season. Avoid over-fertilizing, as this can lead to excessive growth and reduced flowering.
• Soil: Calliandra plants prefer slightly acidic soil with a pH between 5.0 and 6.5. They also need good drainage to prevent root rot.
• Sunlight: Calliandra plants prefer full sun to partial shade. They can tolerate some shade, but may produce fewer flowers.
• Hardiness Zones: Calliandra plants are hardy in USDA zones 9-11, but can be grown as annuals or in containers in cooler climates.

Common Pests & Diseases

Calliandra plants are generally resistant to pests and diseases, but they can be affected by some common problems. Here are some of the most common pests and diseases that affect Calliandra:

• Spider mites: These tiny insects can cause yellowing of the leaves and webbing on the plant. Use a miticide to control the infestation.
• Aphids: These small, soft-bodied insects can cause curling of the leaves and distortion of the plant. Use insecticidal soap or neem oil to control the infestation.
• Fungal diseases: Calliandra plants can be affected by various fungal diseases, such as powdery mildew and rust. Use a fungicide to control the infestation.

Habitat

Calliandra plants are native to the Americas, where they grow in a variety of habitats, from dry scrublands to moist tropical forests. They are particularly common in Mexico, Central America, and South America, but can also be found in parts of the southern United States. Some species of Calliandra are adapted to arid conditions and can be used in xeriscaping.

Question and Answer

Q: Can Calliandra plants be grown in containers?

A: Yes, Calliandra plants can be grown in containers, as long as you provide them with the right soil, water, and sunlight conditions.

Q: How often should I prune my Calliandra plant?

A: Calliandra plants don’t require regular pruning, but you can trim them to shape or remove dead or damaged branches as needed.

Q: Can Calliandra plants be propagated from cuttings?

A: Yes, Calliandra plants can be propagated from stem cuttings taken in the summer. Dip the cut end in rooting hormone and plant it in moist soil. Keep the cutting in a warm, humid place until roots form.

Q: Are Calliandra plants toxic to pets?

A: Calliandra plants are not known to be toxic to pets, but it’s always a good idea to keep pets away from plants that they might try to eat.

Related Plants

• Acacia
• Cassia
• Mimosa
• Tamarind
• Wisteria

References

• “Calliandra.” The Spruce, www.thespruce.com/calliandra-plant-profile-4842636.
• “Calliandra.” PlantFiles, davesgarden.com/guides/pf/go/1405/.
• “Calliandra.” Wikipedia, en.wikipedia.org/wiki/Calliandra.