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

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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