Wax begonia care outdoors12/23/2023 ![]() ![]() Room temperatures for storage should be between 40 and 50 degrees F (4-10 C).Ĭheck the tubers occasionally and discard any that are soft or rotten. Place each tuber in a small paper bag and store the bags in a cardboard box. Use a sharp knife to cut spent blooms as soon as they fade.Ĭut back on water in late summer, then dig the tubers when the foliage begins to turn yellow. Be sure to provide plenty of air circulation to prevent powdery mildew. Provide a balanced, water-soluble fertilizer monthly during the growing season. Water the plants regularly to keep the potting soil slightly moist. Plant the begonias outdoors when you’re sure all danger of frost has passed. You may need supplemental light to prevent the plants from becoming spindly. Plant each tuber into a pot when the shoots are about an inch (2.5 cm) long, then move the pots to bright light. Watch for the tubers to sprout in about a month. Water just enough to keep the potting mix moist. Store the tray in a dark room where the temperature is about 65 degrees F (18 C). ![]() Place the tubers an inch (2.5 cm) apart, hollow side up, in a shallow tray filled with moist potting mix and sand. However, you can also purchase tubers and plant them indoors six to eight weeks before the last expected frost date in your area. Tuberous begonias are available at most garden centers at spring planting time. Begonias need moist, well-drained soil and are likely to rot in soggy conditions. A location in dappled or filtered light also works well, but the plants won’t survive midday sun or heat. How to Grow Tuberous BegoniasĪlthough tuberous begonias are shade-loving plants, they also require a bit of morning or late afternoon sunlight. Otherwise, you’ll need to dig the tubers and store them during the winter. If you live in USDA plant hardiness zone 10 and above, you can grow tuberous begonias outdoors year-round. The gold, purple, green, or burgundy leaves are nearly as attractive as the flowers. Types of tuberous begonias include upright or trailing varieties with single, double, or ruffled blooms in tropical shades of pink, yellow, orange, red, and white. Read on for some tuberous begonia growing tips. Keeping the plant alive and healthy requires a bit of extra attention. ![]() However, tuberous begonia isn’t a plant-it-and-forget-it plant. These reliable plants come in a variety of sizes to fit just about any space, from as small as six inches to nearly three feet tall, and can often handle partial shade or full sun. If you can’t decide what to plant in that protected, semi-shady corner, you can’t go wrong with tuberous begonia. Perhaps the most well-known type, wax begonias are named for the waxy look of their leaves. ![]()
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