The curse may be referring to the fact that, given the right conditions, baby's tears can be seriously invasive, taking over whole gardens.
Baby tears ( Soleirolia soleirolii) is a small plant with many common names, including angel's tears, mind-your-own-business, peace-in-the-home, Pollyanna vine, Mother of thousands, and the Corsican's curse. The curse may be referring to the fact that, given the right conditions, baby's tears can be seriously invasive, taking over whole gardens. In a closed terrarium, this low-growing plant behaves quite well.