Bought primarily during the holidays, poinsettias are one of the most popular potted plants ... Some plants can grow more than 15 feet tall. Poinsettia (Euphorbia pulcherrima) Other names ...

Move potted plants indoors when nighttime temperatures ... and trees. The firestick plant (Euphorbia tirucalli) is a colorful tropical succulent. Its green stems turn yellow in summer, then ...