House Plant Myst Overview Houseplant Myst is a new way to feed houseplants. It is formulated to suit most indoor houseplants such as Anthuriums, Ferns, Dracaenas, Ficus, Palms, Poinsettias as well as Cacti, Succulents and Bromeliads. Misting regularly with a low concentration nutrient solution such as Houseplant Myst is probably the best way to feed plants. This will add colour and gloss to the leaves and also discourage pests. Not to be used with hairy-leaved plants.