Plan accommodations for any that must overwinter indoors well ahead of time. If you plan to overwinter them in pots in colder regions, you’ll need to trim the stems back yourself. Hardy begonias planted outdoors will die back naturally in Zones 6 to 9. Wax begonias have fibrous roots and may do so well indoors that they not only keep their leaves or grow new ones, they continue to bloom. Tuberous begonias, for example, go dormant in winter even indoors, and drop their leaves and die back. It’s also important to recognize dormancy habits so you don’t think a living plant has died on you, or a malingering plant is healthy when it’s not. If you live in a warmer climate in Zones 9 to 12, you may be able to grow at least one type outdoors year-round in a garden bed or container.īut those who live in Zones 6 to 8 must plan either to grow a hardy begonia, lift tubers to store, or dig up plants with fibrous roots from the ground to overwinter in containers indoors.Įven hardy begonias can’t withstand winter weather in Zones 3 to 5, so gardeners in those areas must opt for growing these plants as annuals, and then bringing the tubers or plants indoors for the coldest months.īe sure to identify your selected variety early on to meet its specific needs for winter. The Begoniaceae family includes dramatic tropical beauties, sweet little bedding plants for cottage gardens, and hundreds of other diverse ornamentals. One critical part of this planning is knowing the USDA Hardiness Zone for your growing area and whether the begonia you’re growing is hardy there. In this guide, I’ll focus on winterizing methods for wax, hardy, and tuberous begonias grown outdoors. You can find more information on caring for these in our guide to growing rex begonias indoors. Winterizing isn’t ordinarily as much of an issue for the rhizomatous and rex begonias grown as houseplants, though you might occasionally see them in the perennial landscape in Florida or other parts of Zones 10 to 11. grandis, or hardy begonia, grows as a perennial in USDA Hardiness Zones 6 to 9, so gardeners in parts of the Midwest, Southeast, and Northwest are able to keep this type alive in winter in the ground or in a container. Tend them carefully for a few months and you’ll have bedding plants or tuberous starts ready to go in the ground in the spring, with no need to buy new ones.Īnother species, the tuberous B. x semperflorens-cultorum) varieties.īut you can still bring plants or tubers indoors for the winter in colder areas. x tuberhybrida) types, and Zones 10 to 11 for wax ( B. You may be gardening outside of the areas where begonias are hardy: USDA Zones 9 to 11 for tuberous ( B. Many gardeners trash those Mother’s Day hanging baskets or mass plantings of wax begonias at season’s end at the same time when they’re pulling up zinnias and other summer annuals. If you buy from one of our links, we may earn a commission. We link to vendors to help you find relevant products.
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