Flat-Top Mille Graines

Oldenlandia corymbosa

Native to:
Andaman Is., Angola, Bangladesh, Benin, Borneo, Botswana, Burkina, Burundi, Cambodia, Cameroon, Cape Verde, Central African Republic, Chad, China, Congo, DR Congo, Egypt, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Hainan, India, Ivory Coast, Jawa, Kenya, Korea, Laccadive Is., Lebanon-Syria, Liberia, Madagascar, Malawi, Malaya, Maldives, Mali, Mauritius, Mozambique, Myanmar, Nepal, New Guinea, Nicobar Is., Nigeria, Ogasawara-shoto, Oman, Palau, Philippines, Puerto Rico, Réunion, Rwanda, Saudi Arabia, Senegal, Sierra Leone, Socotra, Somalia, South Africa, South China Sea, Sri Lanka, Sudan-South Sudan, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Togo, Uganda, United States, Vietnam, Virgin Islands, Zambia, Zimbabwe

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rubiaceae
Genus:
Oldenlandia
Species:
Oldenlandia corymbosa
USDA Symbol:
OLCO

Growth Characteristics

Life Cycle:
Annual | Perennial
Growth Habit:
Forb/herb
Height:
40 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep,oct
Bloom Colors:
white, pink
Ground Cover:
Yes

Soil Requirements

Soil Type:
moist, well-drained sandy loam
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
consistently moist
Notes:
prefers open, sunny locations

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days
Notes:
Seeds are tiny and require light for germination; surface sow and keep consistently moist.

The above propagation data sourced from Claude AI