Barbara Karst - A highly sought-after variety best known for its bright crimson bracts, Barbara Karst's show-stopping color and vigorous growth make it a fan-favorite. According to Adam Kober of ...

“White soil on houseplants often indicates mold or a type of fungus,” explains Pettigrew, and she adds, “Other causes can be minerals and salt build-up from tap water and fertilizers.” Now I know what ...