Rottboellia is a genus of grasses that is native to tropical and subtropical regions of the Americas, Africa, and Asia. It is commonly known as the rattan grass or itchgrass, and is a fast-growing perennial plant that can grow up to 3 meters tall. The plant is known for its invasive nature, often spreading rapidly and outcompeting native plants in its habitat.
Contents
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Rottboellia |
Appearance
Rottboellia has long, slender leaves that can grow up to 60 cm in length. The leaves are smooth and shiny, and have a bluish-green color. The plant produces long, thin stems that can grow up to 3 meters tall. The stems are hollow and have nodes at intervals. The plant produces small, greenish flowers that are arranged in panicles. The seeds are small and hard, and are covered in sharp spines that can cause skin irritation.
Care Guide
Rottboellia prefers well-draining soil that is rich in nutrients. It requires regular watering, especially during dry spells. The plant can tolerate partial shade, but prefers full sunlight. Rottboellia is hardy in USDA zones 9-11, and can tolerate temperatures as low as 20°F (-7°C).
Watering
Water the plant regularly to keep the soil moist, especially during dry spells. Avoid overwatering, as this can lead to root rot.
Fertilization
Fertilize the plant once a month during the growing season with a balanced fertilizer. Avoid using too much nitrogen, as this can encourage the growth of weeds.
Soil
Rottboellia prefers well-draining soil that is rich in nutrients. Amend the soil with organic matter, such as compost or aged manure, to improve fertility and drainage.
Sunlight
The plant prefers full sunlight but can tolerate partial shade. Plant it in a location that receives at least 6 hours of sunlight per day.
Hardiness Zones
Rottboellia is hardy in USDA zones 9-11, and can tolerate temperatures as low as 20°F (-7°C).
Common Pests & Diseases
Rottboellia is susceptible to a range of pests and diseases, including aphids, mealybugs, spider mites, and rust. It is also prone to fungal diseases such as leaf spot and powdery mildew. Keep the plant clean and free of debris to prevent the buildup of pests and diseases. Treat infestations with insecticidal soap or neem oil, and use a fungicide to control fungal diseases.
Habitat
Rottboellia is native to tropical and subtropical regions of the Americas, Africa, and Asia. It is commonly found in disturbed areas such as roadsides, pastures, and abandoned fields. The plant is known for its invasive nature and can quickly spread and outcompete native plants in its habitat.
Question and Answer
Q: Is Rottboellia poisonous?
A: No, Rottboellia is not poisonous. However, the spines on the seeds can cause skin irritation.
Q: Can Rottboellia be grown in containers?
A: Yes, Rottboellia can be grown in containers. Use a well-draining potting mix and water the plant regularly.
Q: How fast does Rottboellia grow?
A: Rottboellia is a fast-growing plant that can grow up to 3 meters tall in a single growing season.
Q: How do I control the spread of Rottboellia?
A: To control the spread of Rottboellia, remove any plants that have gone to seed and dispose of them properly. Use a pre-emergent herbicide to prevent new plants from growing.
Related Plants
- Cynodon dactylon (Bermuda grass)
- Eleusine indica (Goosegrass)
- Pennisetum clandestinum (Kikuyu grass)
- Paspalum notatum (Bahia grass)
References
- “Rottboellia cochinchinensis.” Missouri Botanical Garden. Accessed 23 Feb. 2022. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c319
- “Rottboellia.” Flora of China. Accessed 23 Feb. 2022. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=130346
- Staples, G.W. and D.R. Herbst. “A Tropical Garden Flora.” Bishop Museum Press, 2005.
