In the cooler months, many people turn their thermostats down to conserve energy and save money. While a human can put on a sweater in a cooler house, a house plant must simply cope with the chill. Many plants are not equipped to handle drops in temperature and do not survive the winter in a cold indoor space. Fortunately, there are several varieties of popular house plants that can tolerate the cold and come back to bloom again in the spring and summer.
Cast-iron plant (Aspidistra elatior) is a hardy, leafy green that can tolerate temperatures as down to -2.22 degrees Celsius. Full-grown aspidistra is typically 12 to 14 inches tall with leathery foliage. It can tolerate low light, is resistant to pests and does well despite dusty, dry conditions or overwatering.
Lady palm (Rhapis excels) is a common house plant because it can adapt to a wide range of conditions. It grows tall, sometimes reaching 14 feet, with wide, thick leaves. Lady palm can tolerate temperatures from -6.67 to 37.8 degrees Celsius. It is a slow-growing plant, so good-sized specimens can be pricey, but if you live in a cold climate and keep the house cool in the winter, this plant is a sensible choice.
Spider plant (Chlorophytum comosum) is another common house plant because it is extremely easy to grow. Spider plants tolerate wide changes in temperature, soil composition and light. There are many different varieties of spider plant, and all of them are hardy, low-maintenance and fast-growing. Spider plants can tolerate temperatures as low as 4.44 degrees C, though optimally they prefer 12.8 to 18.3 degrees Celsius.