Tulsi (Rama and Krishna)

Tulsi (Ocimum sanctum / Ocimum tenuiflorum), encompassing green-leaf Rama Tulsi and purple-leaf Krishna Tulsi, is a revered medicinal plant in Indian households. Despite its natural aromatic compounds, Tulsi is commonly affected by fungal leaf spots, powdery mildew, root rot, and sap-sucking pests like lace bugs and aphids. Beginners usually notice dark brown or black spots on leaves, leaf yellowing, powdery white patches, or sudden wilting. Krishna Tulsi's dark purple foliage can make early fungal spots harder to detect compared to Rama Tulsi, so close inspection of leaf undersides is essential. In Indian home settings, monsoon humidity and overwatering—frequently caused by daily ritual watering without checking soil dampness—are primary causes of root and fungal issues. Placing Tulsi in well-draining soil with 4–6 hours of direct sunlight prevents moisture build-up and keeps the plant healthy.