Excessive red pigment develops in infected leaves. Their main quibble with modern homes is dry air, Booman tells me, causing brown edges on the foliage followed by leaf drop. And if all doesn’t go well? Austin, Texas-based architect Hugh Jefferson Rando, Boxed in by boxwood? A popular Begonia for good reason. It's common name is "Iron Cross Begonia." This species likes medium light and high humidity. A sunny windowsill with a thin curtain is the best type of spot. Eventually, those leaves rot and then fall off. Apply a fungicide to protect plants. Shelter my iron cross begonia Put your begonia back inside - it is afraid of freezing! Booman has been working to breed rex begonias with good salt tolerance, a tendency to hold their leaves over winter, and novel leaf pattern or intense leaf color. According to the University of Illinois Extension, rex begonias with crispy brown leaf margins are usually suffering from low humidity levels. You can increase humidity by running a humidifier in the room with the plant or by placing its pot on a shallow tray filled with water and pebbles. Bulbs are intended to withstand low temperatures. Begonia 'Iron Cross' (Begonia masoniana) This New Guinea species is a must for any indoor collection. Booman advises feeding with a soluble houseplant feed once a month, April through August, at a concentration of 180 parts per million nitrogen. Grows compactly without getting spindly. The leaf has the brown iron cross in the center, which is outlined with green Then there is a wide creamy colored band that runs to the margin. For more inspiration: Finally, don’t miss Best Houseplants: 9 Indoor Plants for Low Light. Too much water rots the roots off the plants, especially at cool temperatures, e.g. General Description. Rex begonia (Begonia rex-cultorum) is a notoriously high maintenance frost tender perennial commonly grown indoors as a houseplant. Growing Requirements for Iron Cross Begonia Plants Iron Cross Begonias are perennial, rhizomatous plants that grow from 8"-15" tall with 6" leaves. Overwatering and underwatering can both cause wilted, discolored foliage. Booman agrees: “People see the tropical appearance of the leaves and assume they must water it like a pothos or philodendron. If your rex begonia develops crispy brown leaves, its likely a sign that the plant's cultural conditions are less than ideal. They could grow up to 20 inches tall with leaves that have dark brown patterns in each leaf. It is the Iron cross pattern on the foliage that makes this such an attractive foliage plant. Gardenista’s members-only directory of landscape architects and garden designers. See more of our favorite tropical plants in Tropical Plants 101 and more indoor plants with exotic foliage in Houseplants 101. 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. This beautiful coloration is set against solid green with an overall coarse, pebbled texture. Begonias are succulent plants with stems that are mostly water, which makes them very sensitive to moisture and fungus. Clicking through to the retailer that sells the product may earn us a commission. Your begonias will make new buds and flowers all season long. Your resource for finding the best storage and home organization solutions for every room in the house. Plant database entry for Iron Cross Begonia (Begonia masoniana) with 13 images and 28 data details. Iron Cross - $8.99. Heading somewhere? Synonyms Begonia 'Iron Cross' . Petals show brown spots or transparent blotches where water drops have soaked in. Pinching off flower buds will promote bigger, … According to the University of California IPM Program, improper irrigation is among the most common causes of damage in plants. Family Begoniaceae . Tag us using #gardenista. Other common names Iron Cross begonia . Shade to partial shade, temp. It makes a statement wherever its grown! It is not as hardy as a bulb. Above: Like ‘Iron Cross’, this begonia has thick, pebbled leaves. Family Begoniaceae (Begonia Family), University of Arkansas Cooperative Extension: Houseplants -- Begonia, Missouri Botanical Garden: Begonia Rex-Cultorum, University of California IPM: Water Excess or Deficiency, Yellow Leaves on a Kalanchoe Blossfeldiana. Begonia masoniana is a very popular species rhizomatous begonia from China. All rights reserved. These plants are the ‘cacti of the humid jungles’. It has a very attractive blistered texture. The cross itself is a deep reddish brown, the remaining foliage in a bright mid green, textured to add further interest. The Gardenista editors provide a curated selection of product recommendations for your consideration. iron cross begonia begonia masoniana. This large class is marked by multiple stems that are soft and green rather than … Its leaves sport thick, chocolate-brown markings which radiate to the leaf margins, resembling an Iron Cross. Rex begonia requires a well draining, porous soil mix. The roots are very fine and delicate. They are mainly cultivated for their foliage and usually grown under glass or in frost free environments. Indoor plants require bright, indirect light. The leaves are at least 12″ wide and long. This plant is also called the ‘iron cross’ begonia. Plan your trip with our destination guides to our favorite public gardens, hotels, restaurants, and shops. Hint: When your blooms begin to turn brown on the edges that flower is ready to fall off. Roundish leaves, with a slight spiral, are silver with a green center and green edging. The leaves are oval shaped, and green with a brown iron cross pattern on the leaf blade. Botanical Name: Begonia masoniana Iron cross begonia leaves are easily recognizable. Sensational plant with bright green leaves with an 'iron cross' marking in dark brown. Avoid overhead sprinkling. Puckered, pebbly-textured bright green leaves (to 8" long) have decorative dark chocolate brown center markings which resemble the Iron Cross … The one-stop sourcebook for the considered home, guiding readers artfully through the remodeling and design process. Remodelista, Gardenista, 10 Easy Pieces, Steal This Look, 5 Quick Fixes, Design Sleuth, High/Low Design, Sourcebook for the Considered Home, and Sourcebook for Considered Living are ® registered trademarks of Remodelista, LLC. If you see brown, crispy leaf edges, give the plant more humidity. Begonias (Begonia spp.) Wishhart holds a Bachelor of Arts in fine arts and English literature from the University of California, Santa Cruz. Identify the cause of the fickle plant's distress and make the necessary adjustments to help the plant recover so it can exhibit the striking foliage rex begonias are famous for. Fibrous rooted cultivars have small brown leaf spots.Some cultivars exhibit no symptoms despite heavy infection. This lovely variegated variety was one of the seedlings. Bronzed or water-soaked areas develop on leaves of some cultivars. Remove mealybugs by dipping a cotton swab in rubbing alcohol and using it to wipe off the pests. Leaf drop—provided it occurs outside the growing season—doesn’t necessarily signal death. The leaves of this New Guinea species sport thick, chocolate-brown markings which radiate to the leaf margins, resembling the German Iron Cross. 45 to 95 degrees, 10 to 12in. Rex begonias have high humidity needs, requiring levels around 50 percent or more. © Copyright 2020 Hearst Communications, Inc. Most commonly brown leaf tips or brown edges on leaves are … Care. But don’t overwater, either, as this is the number-one mistake with so many houseplants, rex begonias included. Begonia masoniana (Iron cross begonia) is a perennial, rhizomatous indoor house plant and can grow up to 20 inches tall. 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). The small pink-flushed, white flowers, borne in erect panicles, are an added bonus. Flowers are insignificant. Snails, slugs and caterpillars love juicy begonia leaves. Iron Cross Rex Begonia Plants produce stunning, bristly, light green leaves with thick, chocolate-brown markings that resemble iron crosses. Dormant leafless plants take on the appearance of a pile of snakes coiled on the soil, as the twisted old rhizomes wait for a signal from the sun that longer days have returned, making it safe to push out new leaf growth again.”. Keep water levels low enough that they do not touch the bottom of the pot. It is one of the begonias I collected first along with the Iron Cross begonia. I warned him I had quite a few questions about humidity levels, fertilizer requirements, water quality, how much to water—Are there special watering techniques?—and possibly more. Most begonia types, except for some hybrids, prefer partial shade. But don’t despair if your once-glorious rex became a shriveled mess over winter. Move the begonia plants or plant a vine on a trellis, set up a shade cloth, or grow taller vegetation near the plants. That’s because many cultivars have profound winter dormancy. All Gardenista stories—from garden tours and expert advice to hand tools and furniture roundups. The soil must be allowed to get light in weight, almost dry, before they are watered again. It has large leaves with red veins and the edges are curly and frilly like foam! Shrublike begonias. SOURCEBOOK FOR THE CONSIDERED HOME Remove any fruit loaded with seeds, damaged leaves, and put the hotpot behind a bay window not necessarily sunny - the sun in the morning is enough. The Royal Horticultural Society in the UK carried out extensive trials in 2006, giving the coveted Award of Garden Merit to 25 of the dozens of varieties they grew. Iron cross begonias are only cold hardy in zones 10 and 11. Too much sunlight can lead to fading and wilting of the leaves, and continued excessive sunlight can cause the edges of the begonias' foliage to turn brown. Here are the three AGM varieties the testers liked best. Though rex begonias love warm weather, they will not grow well in full sunlight. I don’t know whether to laugh or cry about the fact that I’ve probably composted a few dormant begonias in my time, but it’s also worth noting that key to these survival strategies is the moist air that the plants find in their native climes: The Begonia rex species from which all the plants were bred comes from Assam, northern India. Make sure it does n't completely dry between waterings shady part of the pot that enjoy the... Can also function as a houseplant leaving these same salts at the pores to. Can ’ t necessarily signal death, especially at cool temperatures, e.g erect,. Dormant in winter these same salts at the pores Iron crosses expert advice to hand tools and furniture roundups cold... From scratch or upgrading an outdoor space editors provide a curated selection of recommendations! Recommendations for your consideration rex begonias in the center pattern resembling Maltese cross on green background and salts! 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