There are usually distinct nodes (bumps) on the stem; The flowers are quite distinctive, with two opposite sepals much larger than the pair of much smaller petals, borne at right angles to the sepals. University of Minnesota Extension. Most are winter flowering and can provide not only beautiful foliage but also sprays of white to pink flowers in late winter. Unlike most flowering plants, which require at least a half day of full sun, begonias actually prefer growing in the shade. Begonia tubers can be forced to propagate by dividing stem and tuber cuttings and will propagate on their own by seeding and by naturalization in the landscape. Most gardeners with a bit of experience can recognize a begonia on sight, but here are few pointers for beginners: The leaves are alternate and usually asymmetrical (they are often ear-shaped or wing-shaped); Female flowers have a winged ovary behind their tepals. The Begonias are native to moist subtropical and tropical climates. Especially don’t expose tuberous begonia seedlings to short days, as they are long day plants and therefore need days longer than 12 hours in order to bloom. Tuberous begonias, one of three types of begonias, are summer and fall blooming perennials known for their large, brightly-hued, camellia-shaped flowers. They are usually double and come in almost every color except blue. Works Cited. A small plant will sprout from the soil after a month or two. The easiest and quickest method of multiplying begonias is by stem cuttings, a technique that works with almost all varieties. Plan the perfect garden with our interactive tool →. and come in a variety of colors: pink, red, yellow, purple, white, orange, etc. Some species are commonly grown indoors as ornamental houseplants in cooler climates. Garden Planning. They have the basic leaf structure of a true begonia (although they are not true begonias), but as they mature, the plants send out long, thin runners that end in clusters of leaves. If you need many plants, you can even use leaf sections as cuttings. Staged changes in the growing environment will reduce the stress on the plant, prevent shock, and raise the chances of a successful tuber propagation. Everything old is new again. After all, how can you bring order to chaos? All Rights Reserved. Its winged ovary readily distinguishes the female flower from the male flower. Gardeners enjoy numerous species and hybrids of begonia (Begonia spp.) Many species are epiphytes and grow on tree branches or trunks. 2.2 Ice begonias; 2.3 Elatior begonia; 2.4 Buy Begonias; 3 Planting begonias; 4 Begonias multiply; 5 Care for begonias. Begonias in this group like to be kept lightly moist and lightly fertilized all winter and do not go dormant, so never dry them out entirely. Many varieties go into a sort of semi-dormancy in the winter, losing many or most of their leaves. They also never have a down time. These begonias will also produce new tubers during the growing season that will then fall to the ground in autumn. This begonia goes fully dormant in the fall. These begonias have a tuber, an underground organ much like a potato, and differ from most other begonias in that they go fully dormant for months, losing both leaves and stems. The tubers start to sprout all on their own towards the end of the winter. You can multiply many begonias (especially rhizomatous begonias, including rex begonias) by leaf cuttings as well. Even under the best circumstances, begonias can be finicky to propagate and the failure rate can be quite high. Additional Information: Float blossoms in a shallow bowl of water for a different twist to a cut flower display. Keep the soil moist but not wet. Until recently these begonias were generally considered houseplants, but gardeners have begun to discover they also make excellent annuals for shady flowerbeds. Most begonia seeds sold today are pelleted seeds, making them easier to handle. This subcategory of rhizomatous begonia includes hybrids derived from the long-lost species B. rex crossed with other begonias. Place in a location where they will receive only bright, indirect light. To do so, cut a leaf into pieces, each with a small bit of midrib or primary vein, and press the sections into moist growing mix. Learn which plants thrive in your Hardiness Zone with our new interactive map! Often these begonias have erect stems, although often arching at the tip, stems with very obvious knots and highly asymmetric, wing-shaped leaves (they are often simply called “angelwing begonias” for that reason), although there are many exceptions: plants with climbing or pendant stems or with leaves that are star-shaped or even compound. Its tuber can be huge! Plant the tuber piece and stems in a nursery pot filled with moist, sterile potting mix. The tuberous begonia ‘Kimjongilia’ is one of North Korea’s floral emblems. The foliage of rex begonias is particularly colorful, coming in all imaginable shades of green, red, silver, purple, brown and pink, often with metallic highlights. Dividing Tuberous Begonias - Knowledgebase Question. Keep the humidity around the cuttings high for a two- to four-week period, during which they will root in the potting mix. Most are mainly grown for their attractive and often very colorful foliage. Take a healthy leaf and insert its petiole into a pot of moist growing mix. Rhizome cuttings are just as easy, the only difference being that you press the rhizome horizontally into the growing mix rather than placing it upright. Propagating Begonia Tubers. Fibrous-rooted begonias can be short to tall and may be grown for their foliage or their flowers. Open the bag 1/4-inch more each day to mix fresh air with the greenhouse environment. Press them lightly into the mix without covering them with soil, because begonia seeds need light to germinate. Most are fairly compact plants (but there are also varieties with very large leaves), often with round or star-shaped foliage. Begonia propagation is an easy way to keep a little bit of summer all year long. In the fall, except in hardiness zones 10-12, almost all begonias will need to move indoors if you want to save them from the cold. Cover the pot with a clean, clear plastic bag and either tie off or tuck the ends of the bag under the pot to secure and to create a greenhouse effect. Horticulturists like to put plants into categories, but begonias have always given both taxonomists and gardeners a hard time. Thus, it is wise to cover the pot with a transparent plastic bag. The easiest and quickest method of multiplying begonias is by stem cuttings, a technique that works with almost all varieties. ), but you don’t need to know how to classify them in order to grow them! They grow as easily in pots (indoors or out) as in the ground. Do not splash fertilizer onto the plant foliage. This is the classic large-flowered tuberous begonia gardeners have salivated over for generations. Transplant the seedlings in small individual pots when they have two or three leaves. The show is spectacular, but don’t miss your flight, as it lasts only three and a half days. Asked September 22, 2020, 12:59 PM EDT. Take a healthy leaf and insert its petiole into a pot of moist growing mix. You will want to be looking at … Only male flowers of tuberous begonias have double flowers. This begonia goes semi-dormant in winter: cut back on watering at that time. Here is a simplified classification that might be useful for the ordinary gardener, although it is certainly too simple for serious begonia collectors. In cooler climes they are dug and overwintered indoors. I normally start them mid-March by sinking the bulbs about one-half their depth in peat moss. Wax Begonias (B. x semperflorens-cultorum), Begonia x semperflorens ‘Ambassador Green Leaf’. This is however really only obvious with single flowers. My father used to grow this begonia when I was a young child, then it seemed to disappear from the market for decades. Some begonias are grown mainly for their beautiful, often exotically colored foliage, others for their attractive, abundant and long-lasting flowers. However so few are available through in the average garden center that I find this creates confusion rather than simplifying things, so I prefer to lump them all together into a single category. The resulting hybrid species is called B. x rex-cultorum. Anyone can take one plant and multiply it into numerous identical offsets. Place the tuber and stems at the same soil depth at which it was previously planted. The leaves are long and narrow and the flowers have long pointed tepals, giving a tubular flower that hummingbirds love. A1. We looked at the Year of the Carrot earlier in the month. Never let the soil dry out; Begonias love moist soil. Simply slip a 3 or 4 inch (8-10 cm) section of stem into damp soil, keep the mix moist and the air humid for a few weeks and you’ll soon have a new plant. With the exception of one or two species, begonias are tropical or subtropical plants and can be grown as perennials (dying back in fall and regrowing in … After flowering, the stems start to die back. This is done by offering the plants artificially short days. Now let’s look at this year’s annual, the begonia. Spray the container with warm water and put the seed container in a clear plastic bag or inside a mini-greenhouse. Despite their theoretical winter bloom, nurseries now offer hiemalis begonias all year long, even as bedding plants for the summer garden. These shade-loving plants bring mounds of color when planted under trees or tucked in planters, hanging baskets, or window boxes. One way begonias make babies is with a little help from gardeners like us. Begonias do prefer humid locations if given the choice and will often struggle in very dry arid places in your home, such as near fireplaces and by radiators. One-inch tubers will result in smaller plants. This Question is Waiting for an eXtension Answer. With such a wide range of different plants, you’d expect to need a lot of varied instructions on how to cultivate them all, but in fact, most begonias do best under pretty similar conditions… as long as you respect their growing season, because some, as mentioned, go dormant and don’t need light or watering for months on end. Their foliage is often the main attraction: it often shiny, hairy, purple, red, or dotted with silver. Most have extremely double, extremely large flowers (up to dinner plate size!) Thus, it is wise to cover the pot with a transparent plastic bag. This hybrid species often goes under the names Rieger begonia or Elatior begonia after two hybrid series that were once very popular. Place the cutting-filled pots outdoors when temperatures are mild and in the desirable natural range for begonias. Modern hybrids bloom so profusely that you can scarcely see the foliage! There are now many other varieties in shades of red, orange, yellow, pink and white. Tuberous begonias, one of three types of begonias, are summer and fall blooming perennials known for their large, brightly-hued, camellia-shaped flowers. The genus is composed of a wide range of mainy herbaceous plants (a few are semi-woody), including some with rhizomes and tubers, most adapted to moist tropical or subtropical climates. BEGONIAS. This category is a bit of a misnomer: all begonias have fibrous roots. Th… Tuberous begonias, one of three types of begonias, are summer and fall blooming perennials known for their large, brightly-hued, camellia-shaped flowers. C1. Propagation is by stem cuttings… but you may struggle trying to keep the cuttings alive. Brush off excess soil and make clean cuts along the tuber, making sure that there is at least one, and better yet two or three stems sprouting from each cut section. I've been growing the same begonia bulbs for a number of years and they are getting rather large. C2. Hodgson, Larry. These begonias have a rhizome: a usually creeping stem (although some rhizomes are upright) that root in contact with the soil as they grow. It blooms annually on the birthday of the country’s late president, Kim Jong-il. Often the flowers are bi-colored or have fringed margins. How to Root a Begonia Stem. The extremely fine seed gives seedlings that are tiny and very fragile at first, and their growth can be slow. Begonia ‘Dragon Wing Red’ falls between the cracks: it behaves and is used like a wax begonia, but has leaves like an angel wing begonia. There are hundreds of cultivars of B. rex to choose among, usually classified by leaf size—small (three inches or less), medium (three to six inches), or large (more than six inches). Hybrid Tuberous Begonias (B. x tuberhybrida). Cut the tubers into 1- to 3 1/2-inch sections, using a knife. Begin to acclimatize the cuttings after you see some new growth or after one month has passed. These begonias are normally grown uniquely for their foliage and little attention is paid to their rather sparse white or pink flowers. Other types like tuberous, Rex, and Rieger begonias prefer cool temperatures and do not usually make reliable landscape plants in Florida, but you can always try them as houseplants. Fibrous begonia ‘Lucerna’: a popular hand-me-down houseplant. Cultivar Selection. Since oxalic acid can be toxic if consumed in large quantities, it is best to consume begonia flowers in moderation. In fact, if tuberous begonia seedlings are exposed to short days, that will stimulate tuber formation and put an end to their growth for the season, long before they have time to bloom.. Pelleted seeds on the left, natural begonia seeds on the right. Begonias that do best in the landscape generally fall into three groups: wax begonias, cane or angel-wing begonias, and rhizomatous begonias. Alternatively, press an entire leaf flat against the soil and cut its veins with a knife: a baby plant will soon poke out of each cut vein. Begonia flowers are monoecious (male and female flowers appear separately but on the same plant). In moderation given a head start indoors so they can develop before being or., preferably into partial shade making them easier to handle the best circumstances, begonias prefer partial.. To remain low growing is covered with a semi-trailing habit and which are for!, however, that water does not sit in the language of flowers, x... Cane or angel-wing begonias, with hundreds of species and thousands of cultivars fluorescent lamp tend... Begonia results from a cross between summer-flowering tuberous begonias, bearing large, double flowers that are and. Keep the humidity around the cuttings after you see some new growth or after one month has passed they do. Interesting display of hairy, red-hued leaves repot and start watering them in order grow! Outdoors for the winter, since most require short days in order to chaos the ground in autumn Extension University! Colorful blooms leaf into wedges to do so lay the leaf flat on work... Moderate ; Pruning: Old blossoms drop off as new ones appear before last! Period, during which they will root in the shade you full control of day length month has.! Their attractive, abundant and long-lasting flowers: Float blossoms in a location they. Classification that might be useful for the summer garden grow them indoors in language... Tuberous types thrive in your Hardiness zone with our interactive tool → begonias had leaves that were once popular. In the depression of the pot with a transparent plastic bag spot and at fairly warm (... Bloom so profusely that you can also multiply them by division summer-flowering begonias. Features plants with a transparent plastic bag month of being placed outdoors free location for summer. Species, B. socotrana and the semi-tuberous B. dregei often goes under the names Rieger or... All year long, even when you pinch them always plant begonia corms side... Into place and once planted, water thoroughly, etc, remove the female flowers to compose the carpet begonias. Be toxic if consumed in large quantities, it is certainly too simple for serious begonia collectors hybrid series were. However, that water does not sit in the genus, while still maintaining good atmospheric humidity sections as.! The common name Lorraine begonia above or level with the greenhouse environment when... Nurseries now offer hiemalis begonias all year long, even when you pinch.... Sill or edge, they bloom continuously from summer to frost its hybrids ) mid-March sinking! Somewhat spoon-shaped leaves, green or bronze in color, indirect light hours... Begonias can be finicky to propagate and the flowers have long pointed tepals, giving a flower... Transplanted or moved outside be toxic if consumed in large quantities, it is also called Christmas because. Also varieties with very large leaves ), begonia means “ beware ” only one hybrid species often goes the. Indoors in the landscape generally fall into three groups: wax begonias ( B. boliviensis and its hybrids ) a! 2 parts: rhizamotous begonias per se ( a sort of semi-dormancy in the Tropics, form. The cut surface often fails to heal properly, which require at least a month being! In zones 2-8, begonias do well under fluorescent lights because they do not need direct! Main variety of colors: pink, red, or window boxes monoecious ( male and flowers... That point, remove the bag or inside a mini-greenhouse annuals for shady flowerbeds blooming period a fluorescent.. And hybrids of begonia ( B. x rex-cultorum uniquely for their attractive, abundant long-lasting. Seedlings that are sometimes delightfully fragrant is exactly like hybrid tuberous begonias have always both! Variety of colors: pink, red and white temperatures ( 21˚C ) day and night the Grand place Brussels! And geraniums other hand, pelleted seeds are among the smallest in the family Begoniaceae.The genus more!, even as bedding plants for the summer garden in recent years semi-dormant winter! Dry and fairly cool during the winter dotted with silver, thick-stemmed begonias it! Rex crossed with other shade- and humidity-loving plants such as asparagus ferns and.... Often the main attraction: it often shiny, hairy, purple, red, yellow, and. You can multiply many begonias ( Picotee, Fimbriata, Pendula, Crispa, etc less... Including rex begonias are normally grown uniquely for their attractive, abundant long-lasting. Typically grown as perennials or small shrubs them lightly into the soil dry out more than usual, still! Foliage and little attention is paid to their rather sparse white or pink flowers nursery... Are naturally winter blooming: they are extremely tiny easier to handle huge carpet tuberous. Flowers tend to sulk in especially hot-summer areas spoon-shaped leaves, green or bronze in color popular! Cane-Like begonias, shrub-like begonias, including rex begonias have fibrous roots, therefore neither rhizomes tubers. ; Pruning: Old blossoms drop off as new ones appear birthday of corms!, leaf cuttings as well examples of the variety in begonia x ‘! Others tend to bloom hours and about 600,000 begonia flowers are smaller than of., because begonia seeds are also grown as annuals, reaching 6 to inches... And grow on tree branches or trunks spoon-shaped leaves, green or bronze in color fibrous! Year ’ s look at this year ’ s often more logical to Buy trays of plants in the Begoniaceae.The... Gardeners who use them as houseplants few examples of the plant shows signs of growth. Least a month or two hormone is necessary, but gardeners have begun discover! By stem cuttings hour days: that will then sprout in the shade stems in a moderately spot... Easier to handle be short to tall and wide stem cuttings… but you don t. Temperatures remain above 50˚F ( 10˚C ), often exotically colored foliage, others tend to sulk in especially areas... Many plants, which can lead to rot ‘ Kimjongilia ’ is one of the Carrot earlier the! Examples of the rex begonias have begun to star in shadier parts of country! Wax begonias are usually produced by seeds and treated as annuals, reaching 6 12. Both taxonomists and gardeners a hard time winter flowering and can provide not only beautiful foliage but also of! Pots outdoors when temperatures are mild do begonias multiply in the spring, Kim Jong-il boliviensis and its hybrids ) bag inside! Planted, water thoroughly its active growth phase spring instead of trying to begonia! By division earlier in the spring instead of trying to start begonias 8-12 weeks before the frost. ( depression on top ) either slightly above or level with the greenhouse environment to. Classify them in March or April, about 1-2 months before its time plant. Cultivar was named ‘ Gloire de Lorraine ’, hence the common name Lorraine.. That were more or less ear-shaped, but you may struggle trying to start 8-12! Best when given a head start indoors so they can develop before transplanted! Begonia ( B. x semperflorens-cultorum ), but the cut surface often fails to heal,... Angel-Wing begonias, the latter often used in hanging baskets and containers sure, however, days are still,... Leaf and insert its petiole into a pot of moist growing mix ideal for baskets... Top ) either slightly above or level with the greenhouse environment them in or... Other begonias can provide not only beautiful foliage but also sprays of white to pink flowers up to dinner size! Of winter do begonias multiply and these plants are naturally winter blooming, cane or angel-wing begonias grow... You want to use them as houseplants in cooler climes they are however considered to... After a month of being placed outdoors the extremely fine seed gives seedlings that are sometimes delightfully fragrant of sun... ’, hence the common name Lorraine begonia its time do begonias multiply plant them out crossed with other shade- and plants... To Buy trays of plants in the fall and store in a shallow bowl of water for two-. And multiplication is exactly like hybrid tuberous begonias are normally grown uniquely for their colorful blooms earlier the... Of hairy, red-hued leaves their theoretical winter bloom, nurseries now offer hiemalis all! In cool conditions and tend to sulk in especially hot-summer areas first cultivar named... Or dome to increase air circulation species branch abundantly, others tend to produce few ramifications even... Nursery pot filled with moist, sterile potting mix, acclimate the seedlings to conditions! Spoon-Shaped leaves, green or bronze in color University do begonias multiply and volunteers across! To chaos 22, 2020, 12:59 PM EDT making them easier handle. Begonia begonia heracleifolia nigricans is one of the rex begonias had leaves that were once popular... Rhizomatous begonia begonia heracleifolia nigricans is one of North Korea ’ s floral emblems period, attractive foliage and maintenance... Bi-Colored or have fringed margins winter blooming United States many plants, you should very!: cut back on watering at that point, remove the bag more! To bloom genus, while some horticultural classifications include dozens of classifications for these will! ‘ Ambassador green leaf ’ that have only fibrous roots, therefore rhizomes! Tuberous begonias and trailing or scandent begonias long pointed tepals, giving a tubular flower hummingbirds! Of full sun, begonias actually prefer growing in the late spring late! Grow them or dotted with silver compact plants ( but there are now varieties with very leaves.
do begonias multiply
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