Of the several different types of begonias, all are quite tender and frost-sensitive. Increase humidity levels but cut down on watering over winter. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board. After the plant is done blooming, cut it back and let it dry out, then move it to a bright place and begin watering again when the weather warms up. for their blossoms and, in some cases, their interesting leaves. Commonly grown as a houseplant for its foliage, these begonias are also known as painted-leaf or fancy-leaf begonias. Begonias are a large family of beautiful tropical flowers that can liven up any garden. They are typically bred to bloom during the winter season and sold as disposable plants—the idea is to enjoy the bloom and throw them out after the season is over. After gently removing the loose dirt from the plant's tubers, check for and cut away any soft, rotted areas on the tubers, dusting the cuts with antifungal powder. Once warm temperatures return, increase their watering and begin to move them back outdoors. Keep your boxed tubers or dormant, potted plants in a cool, dry, dark spot until spring. Timing Is Important: Bring your begonias inside before the first frost, or they may be lost for good. Get it free when you sign up for our newsletter. Since bringing wax begonias indoors can cause stress on plants, which leads to leaf drop, it often helps to acclimate them beforehand. In frost-free regions, bring tuberous begonias indoors in pots and withhold water during winter, allowing them to go dormant. Begonia plants, regardless of type, cannot withstand freezing cold temperatures and require appropriate winter care. Pots can be left in an upright position or slightly tipped. Can I Save My Geraniums So They Will Come Back Next Year? The main joy of a Rieger begonia is its lovely flowers, so look for new plants with lots of unopened, tight and healthy buds. Once the plant has gone completely dormant most gardeners remove the tuber from the soil. … In areas with winter frost, you can dig up your tuberous begonia plants after cold arrives and the foliage dies back. Overwintering a begonia is not always necessary in warmer environments, as winters are generally less severe. Rieger: This category of begonias is winter-flowering. However, to ensure proper begonia care, you should be wintering over begonias indoors if you live in areas prone to freezing temperatures, such as northern climates. As old flowers are spent, pinch off the flowers to encourage new blooms to open. Both of these can encourage diseases that will kill the plant. Begonia Care in Winter. Marie is a certified master gardener and has a Ph.D. in anatomy from Temple University School of Medicine. The tuberous Begonia group REQUIRES winter dormancy. Once again, it helps to acclimate plants to reduce stress. The original plant was a cross between a standard wax begonia and a tuberous begonia and has since evolved into a thriving category of its own. ", How to Propagate Plants by Using Cuttings, How to Grow Wax Begonias (Semperflorens) Indoors, How to Grow Strawberry Begonia (Saxifraga Stolonifera) Indoors, How to Grow Bougainvillea as a Houseplant, How to Grow and Care for Powder Puff Cactus. Jon VanZile is a Master Gardener and the author of "Houseplants for a Healthy Home. If you enjoy growing flowering plants outdoors, you're sure to recognize and appreciate begonias (Begonia spp.) Tuberous begonias should be dug up and stored indoors during winter until the return of warmer weather in spring. They overwinter well if kept slightly moist and fertilized lightly every month or two until spring arrives. Known as Rieger begonias, these beautiful flowering winter plants have creamy, beautiful blooms in bright yellows, reds, pinks, and even white. Never let your Rieger begonia sit in water or spray the leaves directly with water. For any type of begonia, general care when spring arrives should include a gradual return to normalcy. Applying a time-released fertilizer, such as a 10-10-10 formula, after the plants begin to show new growth can also help give them a boost and maintain them during the next season. The Rieger begonia is also known as the Begonia x hiemalis or hiemalis begonia. To prevent problems with fungus or powdery mildew while wintering begonias, dust them with sulfur powder prior to storage. When repotting a Rieger begonia, only increase the pot size as much as necessary. In order to keep and enjoy begonias in the garden each year, begin by wintering begonias indoors. They are also sometimes called elatior begonias, although this is the same plant as the Rieger begonia. The Rieger begonia is also known as the Begonia x hiemalis or hiemalis begonia. Today, the flower variety is achieved by crossing existing hybrids with each other and standardizing for color. Even people who keep Rieger begonias frequently don't repot the parent plant. The best time to take cuttings is after the bloom is over and the plant has been cut back when the new growth begins to emerge in the spring. Whether you are gifted with a green thumb or not, our guide will help you grow the perfect houseplants. Keep wax begonias in a bright window and gradually reduce the amount of light to help them adjust to an indoor environment. Joanne Marie began writing professionally in 1981. If your area experiences winter frosts, you can dig up and pot wax begonias, moving them indoors to a south- or west-facing window in direct sun. Rhizomatous begonias may continue flowering and growing slowly during winter, depending on the variety. She has also published in hobbyist offerings such as The Hobstarand The Bagpiper. For tuberous begonias, whether potted or stored loose over winter, you can re-plant the tubers once they break dormancy and start to sprout in spring, or return potted, sprouting plants to an outdoor spot. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. You should also be overwintering a begonia grown outdoors in containers. If you choose the latter method, start them indoors in late winter so that they have time to mature before you transplant outside in warm weather.
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