What is a Rhizomatous Begonia? Rex begonias are rhizomatous plants that grow from a shallow and knobby rhizome. Feeding your plant monthly during its growing months will keep the leaves looking nice and healthy. Many people collect and display several varieties. Escargot begonias (Begonia rex) are a variety of rex begonia that produces spiral-shaped foliage that curls around at the base of the leaf. The resulting hybrids are often known in the trade only by fancy trade names dreamed up by growers looking to market their plants. Large or gangly plants can be pruned into shape. Learn how to care for the Rex Begonia! Conditions: Considered perennials in tropical and semitropical climates, Rex begonias are frost tender and typically grown as annuals or houseplants in North America. We have roughly 50 different Begonia Rex available. Most rex begonias sold today are named hybrids, although they are not always labeled as such. The original Begonia rex had dark leaves with wonderful silver designs. They also thrive on humidity but don't like direct misting, which encourages powdery mildew. DAILY PLANT CONTENT: https://www.instagram.com/jessypotplants/?hl=en Aptly named, these "kings" of the Begonia tribe display gorgeous foliage in wildly variable patterns, colors (including metallic silver), and even shapes (such as the spiral variety called 'Escargot'). Let’s take a look at the most critical elements of growing the rex begonia as houseplants. Begonia plants from this group have leaves that vary in size and pattern and grow from rhizomes, hence the name. Ideal begonia care requires well-drained soil that has been amended by the addition of organic matter, such as compost and peat moss. Care: Watering “on demand” (or when the soil is dry to the touch) is a great way to keep Rex begonias happy. -Rita Randolph, Rex begonias, Fine Gardening issue #120. Rex begonias (Begonia rex) are tropical plants, prized for their colorfully patterned and intriguingly shaped leaves.Although they are at home in a shady garden, they are also popular as houseplants.Many people collect and display several varieties. Mealy bugs can also be an issue. Begonias such as Begonia Rex and Begonia metallica are popular houseplants grown for their attractive foliage or flowers. Houseplants do best when the temperatures range between 60 and 85 °F. By using The Spruce, you accept our, Parent species from Northeastern India, southern China, and Vietnam, 4 Genera of Bromeliad Plants for Growing Indoors, 10 Varieties of Begonias for Gardens and Containers, How to Grow Wax Begonias (Semperflorens) Indoors, 10 Top Outdoor Garden Plants That Thrive Indoors, Amazon Elephant's Ear Plant Profile (African Mask). Its leaves can vary in form - from hearts, to seashell swirls, to ivy-like forms, and more. This beautiful plant was introduced to c… A systemic fungicide can help. Wax Begonias In the landscape, wax begonias ( Begonia semperflorens ) are most popular, with flowers that keep their rich color, even during the summer. Rex Begonia’s are also called looking glass plants. This group of warm-loving plants was originally found in the forest understory in tropical and subtropical areas. Ideal as houseplants or in hanging baskets, elatior begonias (Begonia x hiemalis) are short-lived but flower prolifically and come in fabulous colours, from hot reds and oranges to softer sherbet-like pinks, lemons and apricots. Rex begonias can also be propagated by pinning a leaf to the bedding mix and making small incisions in the leaf veins or by inserting a leaf (with a petiole) directly into the soil. A Begonia Rex plant, also called a Painted-Leaf Begonia, a Fancy-Leaf Begonia, or King Begonia, is a colorful perennial flowering plant that originally came from India. Spread the love. Crop planning from cell packs: Pot size: Plants per pot (pp) Crop Time (weeks) Despite its exotic looks, Rex begonia is actually easy to grow. Bacterial leaf spot, mildew, and botrytis can occur if the leaves stay wet. The original Begonia rex had dark leaves with wonderful silver designs. It’s better to cluster your plants, so they can create their own humid environment, or use a pebble tray. One interesting and beautiful begonia that's often included with the rex begonias as a foliage begonia is the B. masoniana or iron cross begonia. Rhizomatous begonias such as the rex begonia can be easily propagated by rhizome division during repotting. 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. Award-winning Begonia 'Benitochiba' is an evergreen, rhizomatous perennial of upright habit, mostly grown for its elegant foliage of large, palmately-divided silvery leaves adorned with dark green markings along the veins. Marked by dramatic colors - often a mix of green, pink or burgundy - the Rex Begonia can also include metallic shades of grayish silver. And that’s without producing many flowers like other Begonia species. Some Tuberous Begonia you might like: Dragon Wing series, Hanging Basket series. In dry climates or indoors in winter, provide moisture in the air by misting plants with a spray bottle, placing pots on wet pebbles in a tray, or keeping plants in a greenhouse. Rex begonias are grown specifically for their attractive foliage, and are almost exclusively indoor container plants. It needs bright but indirect sunlight and the soil should always be moist. Use an organic water soluble houseplant fertilizer once every four to six weeks through spring and summer. Rex begonia care indoors can be a little tricky, but it is certainly possible to grow beautiful specimens if you understand the plant’s needs. Begonias have a reputation for being difficult. Use liquid fertilizer weekly at quarter strength or at half strength every two weeks. Growing begonias takes a bit of patience, skill and knowledge to get the most out of this fun flower. In their natural habi Do not over-fertilize. More infos: the black leaves are from a cultivar named Begonia × rex-cultorum “Dark Mambo”. Water when soil is dry to the touch. Debra LaGattuta is a certified master gardener with decades of experience with perennial and flowering plants, container gardening, and raised bed vegetable gardening. Cane types will go dormant if the temperature gets too cool. Because it's a relatively short houseplant, Rex begonia is perfect for desks and tabletops where is wildly colorful, variegated foliage makes it a perfect contrast against other houseplants. Rex: Rex begonias are entirely their own class of begonia.They are rhizomatous, meaning they typically grow horizontally and … Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board. They are grown for their gorgeous blossoms and spectacular leaf shapes and colors. Rex Begonia Care Instructions Temperature: Average room temperatures of 55 - 75°F (13 - 24°C) are best suited for Begonias...and no less than 55°F, and typically no more than 85-90F Light: This plant is not in favor of all day direct sun, however, an East facing window will suit a Rex beautifully. Great American Cities ‘Houston Fiesta’ By using The Spruce, you accept our, 10 Top Outdoor Garden Plants That Thrive Indoors, 10 Varieties of Begonias for Gardens and Containers. Rex begonias are sensitive to temperature and humidity changes. The leaves grow on short leaf stalks, from the underground rhizome. The advice given here will help guide you to growing success. It needs bright but indirect sunlight and the soil should always be moist. Another option is to use a complete fertilizer (23-19-14 is a good balance) in the spring every two weeks at 1/4 strength. Commonly grown as a houseplant for its foliage, these begonias are also known as painted-leaf or fancy-leaf begonias. Painted-Leaf begonia may reach a height of 10″ to 26″ inches. The Rex Begonia has a somewhat unfair reputation that it is difficult to take care of. It is grown for its large colorful leaves rather than its small pink flowers. They are rhizomatous, meaning they typically grow horizontally and with shortened stems. Ongoing care for your rex begonia includes watering that allows the soil to nearly dry but retain moisture. Some types of rex begonias go into dormancy during the winter. Every three months, apply a controlled release fertilizer. How to Care for an Escargot Begonia Plant. To avoid these issues, be sure your begonias are in well-drained soil and water them sparingly. Fertilizing your Begonia when temperatures are below 58 degrees Fahrenheit will do more harm than good. Rex begonia ceases growing if the temperatures fall below 58 °F – be mindful in the winter months. Another option is to use a complete fertilizer (23-19-14 is a good balance) in the spring every two weeks at 1/4 strength. -Rita Randolph, Rex begonias, Fine Gardening issue #120. Fancy-leafed begonias produce dramatic, large leaves streaked, veined, or splashed in shades of silver, pink, purple, cream, green, or burgundy. A peat-based potting mix is ideal for containers. Botanical Name: Begonia rex hybrids A long-time favorite of house plant lovers, Rex Begonia is grown for its colorful, textured foliage. As such, they do best in large, relatively shallow pots where the rhizome has room to spread. Eventually, you'll figure out the right balance. Rex Begonia Features: An Overview. Decrease fertilizing when fall arrives and stop in winter. Rex Begonia fertilizer. It is grown for its large colorful leaves rather than its small pink flowers. Flowers tend to be inconspicuous and are … In this article, we will go through everything you need to care for a Rex Begonia and provide some easy tips that will help you succeed. Rex Begonias are not difficult to divide and propagate, which comes in handy as individual plants usually don’t have a very long lifespan. Rex begonias Also known as king begonias, Rex begonias have the name for good reason. There are many different cultivated varieties, sporting large leaves with streaks, spirals or veins, and often with splashes of silver, pink, purple green and burgundy. Rex begonias (Begonia rex) are tropical plants, prized for their colorfully patterned and intriguingly shaped leaves. Avoid soggy conditions, but do not allow plants to wilt. Give Rex begonias a diluted dose of organic, soluble food every four to six weeks during the growing season. Most varieties of begonia cannot survive temperatures below 45 °F (7 °C). The Begonia rex is one of the most beautiful houseplants out there. Adjustment Period: Some begonias respond to the shock of moving indoors by dropping and regrowing some or all of their leaves. Plants will vary and the only way to know what your plant wants is to watch it, once it has adjusted to its new surrounding. Rex Begonia Care – Temperature and Humidity. If planted in the garden (a relatively rare occurrence), rex begonia is grown as an annual in all but the warmest climates. Rotate the plant frequently to expose it to equal light on all sides. The colorful blooms and bright leaves are a beautiful addition to most gardens and shouldn't be shied away from by beginner or advanced gardeners. When the rhizome begins to butt up against the sides of the pot, however, it's time to repot into a fresh pot with fresh soil. This plant is susceptible to fungal infections, mainly bacterial leaf spot. Begonia rex is sensitive to temperature changes and to temperatures below about 60 degrees Fahrenheit (16 Celsius). Begonia Rex Care Size and Growth. It can be challenging to find just the right conditions for rex begonia to display its best leaf color. You can cut back on water during their dormant period in the winter, watering only when the pot dries out. Every three months, apply a controlled release fertilizer. Shop online today. In most cases, a spray form of pesticide will take care of the issue. Begonias (Begonia spp.) Jon VanZile is a Master Gardener and the author of "Houseplants for a Healthy Home.". Full sun to partial shade. A Begonia rex needs fast-draining soil. The forms sold commercially are carefully cultivated varieties of the B. rex species native to parts of eastern Asia. They look great outdoors in shady tropical gardens, but the most popular way to display rex begonias is to collect and group them together, each in its own pot. Begonia rex is the basis for many hundreds of hybrids, and its forms are too numerous to count. Rex begonia offers colorful foliage and is one of the most interesting indoor plants around. Although Rex begonias are sure to bring a bit of an exotic and tropical appeal to your indoor spaces, use caution where you decide to place them. CareProvide organic, sharp-draining soil in shade with lots of humidity. This is an extremely popular Rex hybrid begonia. A Note of Caution For Indoor Rex Begonia Care. If the rhizome still has room to grow in its pot, the begonia should be considered happily potted. Series: Begonia Rex Dibs™ & Bewitched® Recommended Containers: 6” to 12” pots and mixed patio containers. They require a bit more care than your average houseplant, but the variegated, colorful leaves add a bit of life to any indoor environment. Provide the plant with plenty of bright indirect sun, but keep it out of direct sunlight. Begonia Rex Dibs™ boast high vigor and quick crops times compared to all other Begonia Rex lines. The cultivar offers a wide range of colors, textures, and shape. Give rex begonias bright light through a window, and water only when top inch of soil is dry. You can feed your potted plants monthly with any good houseplant food. Related plants How to grow Begonia × hiemalis from cuttings Rex begonias can be very demanding of just the right amount of water, food, and humidity. Keep the plant moist, but avoid overwatering. Whether you are gifted with a green thumb or not, our guide will help you grow the perfect houseplants. Its leaves can vary in form - from hearts, to seashell swirls, to ivy-like forms, and more. Cane type (Angel Wing) begonias and the Rex or foliage begonias are also good indoor plants. Rex Begonia Features: An Overview. They cannot tolerate freezing, and some types of rex begonias go into a dormant period during the fall. The leaves of the rex begonia … Angel wing: Also known as cane begonia, this type has long stems with "joints" on them.As the name suggests, these begonias have leaves that look like angel wings. Rex begonias require regular water, but be careful not to over-water them. Don’t feed at all during the winter. When planting directly in the ground, a moist, well-drained location is optimal and mulch will keep the roots shaded. are available in many different varieties, including Rex, wax, tuberous and cane-stemmed types. Ideal daytime temperatures are around 70 degrees Fahrenheit, nighttime temperatures around 60 degrees, and a constant humidity level around 50 percent. Propagating Rex Begonia. Begonia Rex Plant Care; Plant Care Houseplants Plants Begonia Rex Plant Care. Handle slugs and snails by placing slug bait near your plants. Let the soil surface become dry to the touch before watering. Begonia rex should be watered when the soil or pot feels dry, but don’t wait until the plant starts to wilt. Outdoor Begonia Care. The outer edges of the leaf may appear dark green while the inner parts are a … Rex Begonia. Shop online today. January 13, 2019 0. Whilst, there are some guidelines you need to follow, it can be relatively easy for the plant to thrive. Alternatively, if your area is too cold, consider growing yours as a houseplant or in an outdoor container that can be brought indoors in cooler weather. Learn how to care for the Rex Begonia! Among the various types of begonias, Begonia rex is one of the most beautiful and stunning plants. In terms of growing, they like rich, well-drained soil and detest soggy feet. It produces oval or heart-shaped fancy leaved begonias with interesting coloration. Rieger: This category of begonias is winter-flowering. The snail curl pattern is accentuated by the spiralling green, silver and chocolate colors, creating a most arresting display. Be sure your garden beds or containers meet the requirements of the rex begonia. The soil should be porous. Begonias are herbaceous succulent plants that hail from the tropics. Latin Name Pronunciation: b eg-own'ee-uh . Decrease fertilizing when fall arrives and stop in winter. If you don’t get frost where you live, wait until the plant shows signs of decline—wilting, browning, shedding of … Begonias do not grow or use fertilizer efficiently below 58°F. As a result, you might find the same crosses named two different things in different garden centers. Rhizomatous Begonia (Rex Begonia) Rhizomatous Begonias are herbaceous plants cultivated mainly for their foliage. Sometimes called painted-leaf begonias or fancy-leaf begonias, these plants are known for their showy, sometimes jaw-dropping leaf coloration. Rex begonias (painted leaf begonias) may not be the easiest plant to grow indoors, but with the proper know-how, you’ll succeed in growing a thriving plant that will add liveliness and color to any indoor space. Use a porous potting mix in a relatively shallow pot, and feed the plant regularly. Rex Begonia Care – Temperature and Humidity. Rex Begonias are admired for their fabulous foliage. This Rex Begonia indoor care guide covers all you need to know to better understand the Begonia species and how to care for Rex Begonia plants indoors. Rex begonia hybrids have been developed to have unusual markings, leaf shapes, and colors. With velvety pink, light green, and black leaves, a healthy Rex has almost an ethereal look. Their distinct foliage makes them a popular houseplant, but they can be finicky. If you’re overwintering Rex begonias, they might need misting or a little help from a humidifier. Although a blooming plant, its flowers are so small … Rex Begonia Plant – Care, Growing, Watering, Propagation read more » Rex begonias are often troubled by mildew and botrytis fungal disease. Rex begonias prefer light, rich soil. Rex begonias do best in moderate temperatures (60 to 70 degrees Fahrenheit) and moderately high humidity (around 50 percent). You can keep them happy as houseplants or store them dormant over winter, as you would with other tender bulbs. Rex Begonias are admired for their fabulous foliage. This beautiful plant was introduced to cultivation in 1952 and has puckered leaves with a dark cross in the middle. They also need high humidity (at least 50 percent) to do their best. Rex begonia ceases growing if the temperatures … Rex begonias can be temperamental and you just have to find the right conditions and balance for your plant. Rotating potted rex begonias will keep the plants full and stocky. The petiole is the stalk that attaches the leaf blade to the plant stem. Houseplants do best when the temperatures range between 60 and 85 °F. Cut the leaf into wedges to do so lay the leaf flat on your work space. The vast majority of begonias offered in the trade are hybrids and thus cannot be accurately propagated from seed. Rex Begonia leaves also grow in purple, cream, pink, and silver. The American Begonia Society calls Begonia rex “the showboat of the begonia world.” That may be, but the king begonia, or Begonia Rex Cultorum Group as they are more formally known, may just be my Achilles’ heel: a plant that simply will not thrive for me, however much care and attention I lavish on it. Almost all begonia species will readily sprout from leaf-tip cuttings. The soil should be porous. Remove dead leaves promptly and provide good air circulation. Rex begonia plants have calcium oxalate, which is toxic to dogs and cats. Rex begonias (painted leaf begonias) may not be the easiest plant to grow indoors, but with the proper know-how, you’ll succeed in growing a thriving plant that will add liveliness and color to any indoor space. Rex begonias are grown for their colourful, dramatic foliage. And that’s without producing many flowers like other Begonia species. Plant profile of Begonia rex on gardenersworld.com. Get it free when you sign up for our newsletter. As with all begonias, don't soak the soil of newly potted plants, but do keep it lightly moist and warm. The Begonia rex is one of the most beautiful houseplants out there. The rex begonia is a native of Southeast Asia. A group of two or three pots of these little beauties will brighten any room. Be especially careful of directly spraying the leaves, as standing water will encourage powdery mildew, which is a disaster on a plant that is cultivated for its beautiful foliage. Too much food will make for a scraggly plant, so pay attention and adjust the feeding to suit your variety. Rex begonias like bright, indirect light year-round. We have roughly 50 different Begonia Rex available. Ongoing care for your rex begonia includes watering that allows the soil to nearly dry but retain moisture. Marie Iannotti is an author, photographer, and speaker with 27 years of experience as a Cornell Cooperative Extension Horticulture Educator and Master Gardener, The Spruce uses cookies to provide you with a great user experience. The plant contains soluble calcium oxalates, which are toxic to cats and dogs. Outdoor Begonia Care. In this article, we will go through everything you need to care for a Rex Begonia and … Rex begonia (Begonia rex-cultorum) is a semi-tropical perennial plant normally grown as an outdoor container plant or houseplant. 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. Even the best specimen plant can only be expected to thrive for a few years. It’s not necessary to fertilize most plants during the winter because they’re doing less growing and many go dormant. A Begonia Rex plant, also called a Painted-Leaf Begonia, a Fancy-Leaf Begonia, or King Begonia, is a colorful perennial flowering plant that originally came from India. Rex Begonia leaves also grow in purple, cream, pink, and silver. The wax begonia is a very popular plant because they are typically very easy to care for, but they still need to have special attention before winter hits so that they can survive the cold. Because it's a relatively short houseplant, Rex begonia is perfect for desks and tabletops where is wildly colorful, variegated foliage makes it a perfect contrast against other houseplants. The leaves are large and multicolored. Rex begonias are rhizomatous begonias. Begonia Rex is a popular and well-known tropical Begonia plant variety. Because these are primarily foliage plants, careful cultivation is important to realize their full beauty. The small pale pink flowers are an added bonus. These plants do require high humidity (more than 50 percent), which means it can be difficult to maintain rex begonias indoors over the winter.