There are 7 causes of begonia leaves turning brown.
The rex begonia is often grown indoors as a houseplant.Sometimes they don't thrive and develop leaves that fall off.Lack of water or too much light are some of the causes of crisping leaves in rex begonias.Outside of the U.S. Department of Agriculture, the plant is grown as an annual.
A group of begonias all have the same Begonia rex-culturm.Their scientific name is Begonia rex-culturm.Gardeners love the variety of plants that range in color and shape.The leaves are wide and heart-shaped with blends of colors that can look like splashes, stripes, or swirls of pink, purple, brown, silver and even shades of deep red.
rex begonias are high-maintenance plants that require a tricky balance of water, light and temperature, according to the Missouri Botanical Garden.It is not recommended for rex begonias to be misted due to their tendency to develop powdery mildew.Apply a balanced fertilization in the spring to avoid over watering.They like less water in winter.
Lack of water is the most common cause of crisping leaves in a rex begonia.Begonias don't like soggy soil or water.If there is any water in your saucer, discard it.Between waterings, the soil should dry out.
In a rex begonia, low humidity can cause leaves to be brown and dry.According to Gardenista, these plants are native to areas of high humidity and are not as efficient as other plants at moving water to the edges of their leaves.Dry home air causes brown edges on the foliage, followed by leaf drop.Add water to a tray of pebbles.There is a variety of begonia that does not like mist because it can develop powdery mildew.
Don't place rex begonias in places where they will get direct light from the sun.The best place to grow plants is indoors or outdoors.The east-facing window is the best for indoors.Crisping leaves in a rex begonia can be caused by drying out from too much sunlight.
rex begonias are toxic to dogs, cats and horses due to calcium oxalates in the foliage.According to the American Society for the Prevention of Cruelty to Animals, the most toxic part is underground, but you should avoid letting your pets chew on these plants, as it can result in vomiting and salivation in dogs and cats.