Centella asiatica, commonly known as Gotu Kola or Indian Pennywort, is a creeping perennial herb from tropical Asia with centuries of use in traditional medicine. Seeds exhibit dormancy when freshly harvested but aged seeds (2-3 months old) show excellent germination rates of 82% under warm conditions. Germination is photoblastic, requiring light and warm, consistently moist conditions without needing cold stratification or seed scarification.
Before sowing
Seeds 2-3 months old show 82% germination rate; freshly harvested seeds exhibit dormancy. Soaking in water and use of aged seeds improve germination success
Sowing
What to expect
Tips
Use seeds that are at least 2-3 months old for significantly better germination rates (82%) versus freshly harvested seeds. Soak seeds 12-24 hours before planting. Sow on soil surface without burying; light is essential for germination. Maintain consistent moisture and warmth (70-80°F or 21-27°C). Germination is slow and uneven, occurring over 2-8 weeks, with earliest seeds sprouting around 2-4 weeks. Red and white light promote better germination than blue or far-red light; use grow lights or bright indirect light. Keep humidity high with a dome or plastic cover but ventilate daily to prevent mold. Avoid salt-containing water or fertilizers as seeds are extremely sensitive to salinity. Transplant seedlings once they develop true leaves. Young plants require warm, humid conditions with filtered light as they are sensitive to harsh direct sun.
Sources: SciELO Brazil - Seed germination responses of Centella asiatica; Wikipedia; PFAF Plant Database; Propagate One; Terra Mater Gardens; Bumble Seeds; Cicada Seeds; Strictly Medicinal Seeds; Organic India Seeds
