Tulsi vivah is celebrated on the day of Karthik Ekadashi. On this day Tulsi is married to Saaligram.
The Tulsi plant is considered as a most sacred plant by the Hindus as it is regarded to be an incarnation of Mahalaxmi who was born as Vrinda.
The very name Tulsi, that which cannot be compared, the "incomparable one", has spiritually uplifting qualities. Tulsi has been found to possess extraordinary powers of healing.