Philodendron 'Caramel Marble' Blue Moon Tropicals What you can do about that mysterious white stuff on your plants Just been delivered and none of the pots have a passport on with the names. Im thinking in order of the pictures ( mainly from Google search so please correct me if Indigofera Tinctoria a plant that has shaped centuries of color and culture. From its delicate bloom and strong roots emerges indigo, a pigment that has journeyed through civilizations, leaving