Contents
Description
Roella is a genus of flowering plants in the family Melastomataceae that comprises approximately 80 species. It is native to tropical and subtropical regions of Africa, Asia, Australia, and the Pacific Islands. The genus was named after the botanist John Roella.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Angiosperms |
| Class | Eudicots |
| Order | Myrtales |
| Family | Melastomataceae |
| Genus | Roella |
Appearance
Roella plants are mostly shrubs or small trees that can grow up to 10 feet tall. They have lance-shaped leaves that are about 4 inches long and 2 inches wide. The leaves are green and glossy, and they are arranged alternately along the stems. Roella plants produce flowers that are yellow, pink, or purple, depending on the species. The flowers are 1 to 1.5 inches in diameter, and they are arranged in clusters at the tips of the branches. The blooms are showy and attractive to bees and butterflies.
Care Guide
Roella plants are easy to care for, and they can thrive in a variety of conditions. Here are some tips for caring for Roella:
- Water: Roella plants prefer moist soil but can tolerate some drought. Water them regularly, especially during dry periods.
- Fertilization: Roella plants do not require heavy fertilization, but you can feed them with a balanced fertilizer during the growing season.
- Soil: Roella plants grow well in well-drained soil that is rich in organic matter.
- Sunlight: Roella plants prefer full sun to partial shade. They can tolerate some shade but may produce fewer flowers.
- Hardiness Zones: Roella plants can grow in USDA zones 9 to 11.
Common Pests & Diseases
Roella plants are generally resistant to pests and diseases. However, they may be susceptible to root rot, leaf spot, and powdery mildew. To prevent these problems, make sure the soil is well-drained and avoid overhead watering. If you notice any signs of disease, remove the affected parts of the plant and treat with a fungicide if necessary.
Habitat
Roella plants are native to tropical and subtropical regions of Africa, Asia, Australia, and the Pacific Islands. They grow in a variety of habitats, including forests, grasslands, and wetlands. Roella plants can also be found in cultivation in gardens and parks around the world.
Question and Answer
Q: Can Roella plants grow in cold climates?
A: No, Roella plants are tropical and subtropical plants that require warm temperatures to grow.
Q: How often should I water my Roella plant?
A: Water your Roella plant regularly, especially during dry periods. Make sure the soil is moist but not waterlogged.
Q: Can I propagate Roella plants from cuttings?
A: Yes, you can propagate Roella plants from stem cuttings taken in the spring or summer. Dip the cuttings in rooting hormone and plant them in a well-draining potting mix.
Q: Do Roella plants attract bees and butterflies?
A: Yes, Roella plants produce showy flowers that are attractive to bees and butterflies.
Related Plants
References
- Flora of China. (n.d.). Roella. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=130651
- Roella. (n.d.). Pacific Island Ecosystems at Risk. https://www.hear.org/pier/species/roella.htm
- Roella. (n.d.). PlantZAfrica. http://pza.sanbi.org/roella
