For example, some types of tuberous begonias (Begonia tuberosa) have this type of growth habit and d… Question: Last year, I let my tuberous begonia (Begonia x tuberhybrida) grow without intervening and the stem became so tall and heavy that it finally broke.This year, I wanted to find out if pinching it would help, but I … The variety of begonia determines the type of pruning necessary. Tuberous begonia s should be pruned or cut back in the late fall before the first frost, cutting stems to the rootball or tubers. I have two plants from the Bolivean type as well in the same condition. Trim back the tall stems by up to two-thirds their height. ), whether grown for their variegated foliage or summer flowers, depend on proper pruning to produce full plants. Ambius: Plant Doctor: Why Do My Indoor Plants Stretch & Lose Color? Prune shade begonias in spring. Common varieties of begonia include tuberous, cane, semper florens, rex and winter-flowering begonias. Unlike the cane-stemmed varieties, shrub begonias will branch, so prune in late winter to promote new growth. Her published articles have appeared in various print and online publications. Over the course of the season, Amstel begonias may get leggy or have a ragged in appearance. Tuberous begonias do not grow well in hot, arid environments without special care. Tuberous begonias have beautiful rose like flowers in a wide variety of colours and forms. Cutting back large, overgrown begonias may be necessary to restore them to their usual shape. Choose the right begonia for your flower garden or hanging basket, and listen to your begonias as you fine tune the proper amount of light for them. Tuberous begonia. It will also describe how to restart your plant from tubers in the spring, as well as provide additional information about tuberous begonias in general. CORVALLIS - Many people enjoy the lush blossoms of tuberous begonias in pots on patios and as outdoor hanging plants. Renowned for amazing glasshouse displays, begonia tuberhybrida, or tuberous begonias, have gorgeous double flowers that appear in late spring and summer. Tuberous begonias are native to high altitudes growing conditions in the Andes Mountains. You can grow many of the varieties outdoors in USDA hardiness zones 9 and 10, but you can grow them as annuals or indoors in colder climates. Starting tuberous begonias from seed is certainly an option, but will take time and expertise to bring the seedlings to flowering plant size. Tuberous begonias will enter a dormant period no matter how they are grown, whether in a greenhouse or outdoors, so they are not suitable as year-round houseplants. Richford holds a Bachelor of Science in secondary education from the University of Maine Orono and certifications in teaching 7-12 English, K-8 General Elementary and Birth to age 5. Be sure to time your pruning correctly, then you can prune your plant to shape it and help it flourish. Legginess can affect nearly any plant, but begonias (Begonia spp.) However, a light frost - that simply blackens the foliage will not normally harm the underground tuber, but the plants should be removed from the garden as soon as this has happened. Nannette Richford is an avid gardener, teacher and nature enthusiast with more than four years' experience in online writing. Although all begonia varieties become fuller with general pruning, trailing types such as Amour (Begonia “Amour”), depend upon pinching to produce maximum foliage and flowers and their long, trailing stems. Previously, she owned her own business, selling handmade items online, wholesale and at crafts fairs. Pinching back your begonias is the first step to correct legginess. Tuberous begonias such as the ‘Non-stop Mocca Orange’ cultivar grow well in partial shade outdoors and are often used in hanging baskets. Pruning. If you live in USDA plant hardiness zone 10 and above, you can grow tuberous begonias outdoors year-round. In warm, frost free climates, begonias can grow outdoors as perennials and certain types may even bloom all year. Begonias make a great addition to the shaded areas of your garden or your house, but they need to be pruned to control their spread, keep their foliage thick and avoid an overgrown look. Start tuberous begonias from dormant tubers in winter or spring or you can buy them in the spring as started plants. You can grow many of the varieties outdoors in USDA hardiness zones 9 […] Before pruning, wipe the shears with a clean rag soaked with isopropyl alcohol or rubbing alcohol and wash your hands to prevent the spread of any pests or disease organisms. Begonia Society to meet with friends to learn more about begonias. While some begonias tolerate full sun, others prefer partial to full shade. In either case, make sure to rinse them off thoroughly in water and dry the tools with a hand towel before pruning your plant. Fibrous and rhizomatous begonias are easy to grow as house plants, but tuberous begonias need to be stored as bulbs over the winter, and hardy begonias should just be left outside. Question: Last year, I let my tuberous begonia (Begonia x tuberhybrida) grow without intervening and the stem became so tall and heavy that it finally broke.This year, I wanted to find out if pinching it would help, but I … Use clean, sharp shears or a knife to cut the stems back to a leaf node. Their stems trail 12 to 18 inches long and produce white, red, pink, or yellow flowers 2 to 4 inches wide. Begonias can be cut back to within 3 inches of the soil to revitalize them, if necessary, but pinching and pruning is not the end of the story.