It’s best to discard the plant and start over with a healthy one. Around 1850, this species was introduced into cultivation and rapidly became popular as a houseplant. Leaf cuttings of certain types such as Begonia masoniana and B. rex hybrids may be taken in May or June. This can be done by tip cutting, by rhizome, or by leaf cuttings. These are herbaceous perennial plants with watery stems and mainly asymmetrical leaves i.e. Remove dead leaves promptly and keep the soil surface free of debris to avoid disease problems. Simply put a leaf cutting in a mixture of moist peat moss and perlite and wait for it to root. A table displaying which months are best to sow, plant and harvest. Rooting cuttings to form new plants is basically a type of cloning. Being that the plant is rhizomatous, it is important to pay close attention to the soil and root care to ensure the plant has the best chance of proper development. The resulting hybrids are often known in the trade only by fancy trade names dreamed up by growers looking to market their plants. Signs of a problem usually show at the base of the plant first where black, mushy lesions develop on the lower leaves and stems. Using Root Division . 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). I've been experimenting with propagating begonias for a few years but never knew I could water root a leaf until last year. Rex and rhizomatous group: - Most of the rex groups are evergreen, rhizomatous begonias, though some have a tuberous character. Leaf cuttings are the easiest method of propagating rex begonias. The easiest and most straightforward way to propagate rex begonias is by whole leaf cuttings. Columbus, OH . They grow from rhizomes underground, hence the name. By BBC Gardeners' World Magazine. Divide the rhizome to develop more new plants. Then place the leaf with its top surface uppermost on a seed tray of sandy cuttings compost. Divide a Rex begonia when it begins to outgrow its pot or once the plant is at least three years old if you want to add more begonias to your houseplant collection. Contents. She explains the process: Rhizomatous cuttings. Most rhizomes can be rooted directly into your potting mix without any special considerations. How to Propagate Rex Begonias. About the Rex Begonia. Select a healthy leaf. Begonia Rex Propagation Steps. When the soil is kept too wet, root rot can develop in Rex begonias. This method involves cutting leaves in multiple places across leaf veins. To make new copies of begonia hybrids, cuttings are the only way they can be reproduced. The easiest method to turn one Rex Begonia into two (or more) Rex Begonias is by dividing the rhizome. Propagation: Propagate by leaf cuttings, stem cuttings, or rhizome division. Photo - Eve81/Shutterstock.com . Propagating Rex Begonia. There are different methods of propagating begonias based on their group category. We’re going to walk you through how to propagate using root division. Rex Begonias are not difficult to divide and propagate, which comes in handy as individual plants usually don’t have a very long lifespan. Is Rhizomatous Begonia Different from Tuberous Begonia? Most rex begonias grow from rhizomes on or near the soil surface, and have shallow feeder roots. Growing Rex Begonias Indoors. Wedges of leaf tissue that contain at least one main vein take root in moist, warm soil, creating a tiny plantlet that then grows into a new plant. Tuberous begonias produce a fleshy tuber at the base of the stem, similar to a bulb. Rhizome cuttings are a type of stem cutting. This species is typically propagated by leaf cuttings. Propagating a Begonia rex doesn’t have to be difficult. Does anyone know how I could propagate this plant using … These plants were noted for their dark leaves with prominent silvery grey bands. The rhizome is cut apart and divided in order to propagate new plants. Like cane, shrub and other stem cuttings however, you do have to use cutting with nodes. Known most for their ornately shaped and colored leaves, rhizomatous begonias (those growing from swollen underground stems called rhizomes) propagate readily from leaf cuttings. Propagation by cuttings is done by obtaining … Joan enjoyed growing Rex begonias so much she began propagating them herself. Before cutting a rex begonia leaf to propagate … Rooting tips (the plant tops) is simple, and can be done in much the same way as rooting tip cuttings for other plants (see, for example, the lesson on kohleria).). Propagating begonias is actually quite simple and easy. Rhizomatous begonias have similar roots to normal plants but produce large puffy rhizome out of which the roots grow. By dividing/propagating plants you can continue to enjoy them throughout the years. I have a somewhat large Rex Begonia Plant and I am in need of two. Rex Begonias are beautiful tropical foliage plants, but they are expensive to buy. They are actually a type of rhizomatous begonia. Dip each piece into hormone rooting powder and shake off the excess. Let the soil dry between waterings and avoid overwatering as it may cause fungal diseases or rot. Begonia Rex-cultorum group, (bah-GO-nyah). Rex begonias (Begonia Rex-cultorum group), with their large, colorful leaves, can be propagated from leaf cuttings or seeds. Tuberous and rhizomatous begonias can be propagated through their tubers and rhizomes. Unlike many begonias that people are familiar with, this one isn’t known for its large, colorful showy flowers. Above: Begonia rex ‘Red Tango’ mixes well with other shade- and humidity-loving plants such as asparagus ferns and geraniums. We’ll also teach you how to propagate this plant using leaf cuttings. Cut off the leaf stalk, then, using a sharp blade, carefully cut through the major veins, spacing cuts about 2.5cm (1in) apart. It has a high success rate, and new plants are formed in about 6 months. Choose newly matured leaves. The leaf pieces are laid flat on the planting medium, and plantlets will form along the cut edge. Rhizomatous begonias sprout from a thick, fuzzy stem-like structure, or rhizome, which grows on the surface of the soil. A rhizome is a thickened stem from which leaves arise. While their flowers are insignificant, their foliage is like a royal robe with purple, pink, maroon, pewter, silver and shades of green splashed on the foliage in dazzling combos. Different Types of Rex Begonia Plant . Begonias can also be propagated directly through seeds. It’s usually an easy process if you know what steps to take. I'd like to propagate this plant, but don't have 6 months to do a leaf cutting propagation technique. Begonia Leaf Cuttings Easy Propagation Method Begonia Leaf Cuttings are the easiest way to propagate these plants such as the beautifully foliaged Rex types as they really have no significant stems to work with. How to Care for Rhizomatous Begonias. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; To do; To do: J Do not To do in January F Do not To do in February M Do not To do in March A Do not To do in April M Do not To do in May J … Interestingly, Rex begonias are tolerant of juglone toxicity produced by black walnut trees. After seeing how one of our local begonia club members did almost all her propagation that way and knowing I have had problems with this particular begonia, I gave it a try and became a champion on this method. Prevention is as easy as following a proper watering schedule and water only when the top of the soil is dry. This article will describe the various ways to propagate begonias through cuttings. Rex begonias don’t mind being a bit root bound, but repotting each spring is beneficial to the plant. Most rex begonias sold today are named hybrids, although they are not always labeled as such. The Rex cultorum group originated from an Indian species, Begonia rex. The leaves grow on short leaf stalks, from the plant’s underground rhizomes. The first thing you do is to dig up your Begonia rex plant. The escargot begonia is a one of the most popular Rex Begonia hybrids. Propagate by seed or tip cuttings. You may get several cuttings depending on the size of your leaf. The reason for this is its stunning spiral-like pattern on its leaves that look like the tiny snails. As such, it gets its nickname. More infos: the black leaves are from a cultivar named Begonia × rex-cultorum “Dark Mambo”. Martin's Mystery was my first back in Feb '06. 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