Itchgrass
Rottboellia cochinchinensis
- Native to:
- Andaman Is., Angola, Australia, Bangladesh, Benin, Botswana, Burkina, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, China, Christmas I., Comoros, Congo, DR Congo, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Hainan, India, Ivory Coast, Jawa, Kenya, Laos, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Mauritius, Mozambique, Myanmar, Namibia, Nansei-shoto, New Guinea, Niger, Nigeria, Oman, Philippines, Réunion, Senegal, Seychelles, Sierra Leone, Solomon Is., Somalia, South Africa, South China Sea, Sri Lanka, Sudan-South Sudan, Taiwan, Tanzania, Thailand, Togo, Uganda, Vietnam, Yemen, Zambia, Zimbabwe
DouglasGoldman






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Rottboellia
- Species:
- Rottboellia cochinchinensis
- USDA Symbol:
- ROCO6
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Graminoid
- Height:
- 300 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jul,aug,sep,oct
Garden & Ecology Notes
- Wildlife Value:
- birds
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Can resprout from basal nodes after fire or mowing; fire does not eliminate established populations.
Soil Requirements
- Soil Type:
- fertile, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Prefers disturbed areas with ample sunlight
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds germinate readily in warm, moist conditions. Seed dormancy is minimal and germination is rapid under favorable temperatures.
The above propagation data sourced from Claude AI