How to Care for Miniature Begonias. The cross is reddish brown and contrasts nicely with the bright green leaves. â¦ I am a Collector of begonias, the name of this begonia is Begonia Masoniana; it is commonly called Iron Cross begonia. Begonia Iron Cross or Begonia Masoniana This eye catching begonia is known for its distinct iron cross pattern on it's green and red foilage. This begonia is very easy to grow- give it a warm spot, fresh air and keep hydrated. To care for a begonia, figure out if your type thrives best indoors or outdoorsâif you aren't sure, ask someone at your local nursery! This begonia is called a Rhizomatous begonia; it blooms in the winter. A fast decline starting with rotting leaves,mildew showed up. Containers, Greenhouse, Indoor. 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: Itâs most typically found in forests in China, where it will grow up to about 50cm tall. Rex Begonia 'Iron Cross' Regular price $ 15.00 Sale. The plant contains soluble calcium oxalates, which are toxic to cats and dogs. Plant database entry for Iron Cross Begonia (Begonia masoniana) with 13 images and 28 data details. The leaf is light green with a chocolate brown iron cross in the center and a dark brown band around the leaf margin. Problems associated with ingesting the plant, especially â¦ It owes its name to the cruciform pattern on its leaves. Begonias have become popular across the world, both as indoor and outdoor plants (the dramatically flowering ones are a British garden staple). Iron cross begonia, Begonia masoniana. Popular name(s): Iron-Cross Begonia Botanical name: Begonia masoniana Family: Begoniaceae Origin: Asia (China) Height: 20 to 50 centimetres USDA zone: 12 (10 °C) If you think that your animal is ill or may have ingested a poisonous substance, contact your local veterinarian or our 24-hour emergency poison hotline directly at 1 â¦ This rhizomatous plant has textured leaves with tiny hairs. A Note of Caution For Indoor Rex Begonia Care. Some sources say to fill the â¦ Caution: take care with the begonia â donât bend or break delicate stems. Make sure the soil is rich, fertile, and well-draining, since begonias are susceptible to root rot. Above: Like âIron Crossâ, this begonia has thick, pebbled leaves. It is noted for its showy foliage. Iron Cross Begonia (Begonia masoniana) in the Begonias Database - Garden.org New and Unread Tree-Mails The Begonia Masoniana can also function as a â¦ It has large puckered and yellow-green leaves; a chocolate pattern on the leaves resembles a Maltese cross. Its leaves sport thick, chocolate-brown markings which radiate to the leaf margins, resembling an Iron Cross. Indirect light and high humidity will keep it thriving. This spring it has responded with new large healthy leaves. The flowers are small and pink, they look very elegant in any home. Known as Iron Cross Begonia, Begonia masoniana has a bullate leaf that looks akin to toad skin. Begonia âJoe Haydenâ has small satiny dark green leaves with red undersides; it has red flowers in winter. It will grow to 12â tall and can spread 10 16â wide. Begonia variegata is a new rhizomatous species from Yunnan, China. It is easier to grow than a Rex begonia. It is a rhizomatous perennial begonia It is easier to grow than a Rex begonia. If you don't follow our item condition policy for returns, you may not receive a full refund. Sold in 6â containers. Suggested uses. Color may change based off of your humidity and growing conditions. And finally, feeding is vital to get the foliage looking at its best. Begonia masoniana, the iron cross begonia, is a species of plant in the family Begoniaceae, native to southern China and northern Vietnam. Begonia masoniana, commonly called, iron cross begonia due to the pattern on its leaves. African violet potting mix is good for begonias. Then I potted it up into a too large pot. Over 1000 varieties of begonia growing worldwide, the Iron cross Begonia gets its name from the dark black cross shape that appears on its green leaves, which also makes it a perfect foliage for flower arrangements. Apparently this grows under heavy dense forest vegetation in fallen leaf litter.