![]() ![]() Clean any remaining dirt from the tubers and dry them on newspaper in a sunny location for about a week. Dig up the tubers at the first threat of frost. Start decreasing water in late summer to early fall and trim back foliage when it starts to yellow. Tuberous begonias will naturally die back each year. Only plant outdoors when there is no longer a threat of frost. Tubers should sprout in about 4 weeks and be moved to an area with bright light once the sprouts are about an inch tall. Place the tray in a dark room and water just enough to keep the potting mix moist, but not soggy. Tubers can be started indoors by placing the tubers, hollow side up, 1 inch apart in a shallow tray with moist potting mix. Plant wax begonia transplants 6 to 8 inches apart and others according to their mature size. Plant in a location where they will have good air circulation to prevent powdery mildew. For sunnier locations, try a dark-leaved variety or one that specifies improved sun tolerance, like Surefire® Rose. Select a location that gets partial shade or filtered sunlight with morning sun and afternoon shade being the best, especially where it is exceptionally hot. Transplant after all threat of frost has passed, as they are extremely frost tender and even temperatures below 50 degrees can cause damage. They're wonderful in summer flower beds or containers, especially when combined with ferns and other semi-shade companions. Their distinct foliage makes them a popular houseplant, but they can be finicky. Rex begonias:Ī subgroup of rhizomatous, Rex begonias ( Begonia rex), are widely available, sold by florists and garden centers year-round, and generally reach 12 to 18 inches tall and wide. Sizes vary from just a few inches to large plants up to 3 feet tall and wide. They also have some of the most interesting leaves and stems and are often grown as houseplants. The largest class, rhizomatous begonias are distinguished by relatively thick stems, or rhizomes, that grow horizontally near the soil surface and sprout new roots and leaves. Their size varies with growing conditions, from 6- to 12-inch houseplants to bushy plants up to 5 feet. They are popular and well-suited as houseplants, but can also be grown outside. Angel wing begonias, named for their wing-shaped leaves, also belong to this group. With an upright growth habit and segmented stems, cane types have beautiful foliage and bloom in a wide array of colors. They also have a larger growth habit than wax begonias, growing 12 to 18 inches tall as houseplants and up to 3 feet or more in outdoor containers. Tuberous begonias:Īnother popular type, tuberous begonias have spectacular colorful flowers, and are particularly showy in hanging baskets or containers. Wax begonias are typically grown as annuals, reaching 6 to 12 inches tall and wide. These shade-loving plants bring mounds of color when planted under trees or tucked in planters, hanging baskets, or window boxes. The most common are Begonia semperflorens varieties, also called wax, annual, or bedding begonias. Are begonias deer resistant?īegonias are deer resistant. See more Common Poisonous Plants for Dogs and Cats. They are not toxic to humans, although may cause allergic reactions. The underside of the leaves is usually deep red.īegonias are toxic to pets, with the tubers being the most poisonous part. Angel wing begonias have attractive year-round foliage with speckles or streaks on dark green leaves.(Learn more about growing tuberous begonias.) Their single, double or ruffled flowers bloom in shades of pink, yellow, orange, red, or white. Tuberous begonias come in two forms, either upright or trailing, and have green or burgundy leaves.They bloom with 1-1/2-inch single or double flowers in shades of red, pink, or white. Wax begonias have succulent stems shiny, rounded, green or reddish-brown leaves and grow in a mounded habit.Color and characteristics of popular types: Bloom times may also vary if grown indoors and some types bloom all year. Varies, with the most common types, wax and tuberous begonias, blooming from early summer until frost. Varieties differ, from 6- to 12-inch houseplants to bushy plants 5 feet tall or more. Most varieties 9-11, but commonly grown as an annual or houseplant. ![]()
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