Rex Begonias grow well in a broad pH range, but prefer more acidic media; pH 5.7 to 6.2 is optimal in peat-lite soils. No shading is required when producing Rex Begonias during the winter months or in regions with naturally occurring lower light levels.
Even the fancy rex begonias and tuberous begonias will grow in water, and only a single leaf is necessary to start a whole new plant. It may take a couple of months for roots to form, and it's wise to perform weekly water changes to Read more
Will tolerate dry air but prefer high humidity. Avoid misting, which can lead to problems with powdery mildew.
Rex begonias need a high level of humidity – 50 percent or more – but not too much water and no fertilizer during winter. Grow plants in shallow pots and provide lots of light without direct sun, which can burn the foliage. During winter, rex Read more
INDOOR PLANT TO PURIFY THE AIR – This Rex Begonia indoor plant will make use of its effective air-purifying qualities to revitalise and freshen up the atmosphere around it. Then, for continued growth and progression, water the plant once a week when the soil is Read more
During winter, rex begonia may drop many or all of their leaves as they enter a dormant period. Continue to water, but very lightly, until the plant produces new leaves in spring.
These regal beauties give a long season of pleasure flourishing outdoors when nighttime temperatures are above 55°. Rex begonias are striking enough to go solo in a container. Outdoors, rex begonias like part- to deep shade, ordinary potting soil, and water when the top inch Read more
Hardy in U.S. Department of Agriculture zones 6 through 11, depending on the cultivar, begonias (Begonia spp.) do not require deadheading to thrive. Rather they self-clean by dropping spent flowers on their own, says the University of Illinois Extension.
A Begonia rex needs fast-draining soil. The soil should be porous. It needs bright but indirect sunlight and the soil should always be moist.
The most common cause of brown leaf edges is that your Begonia is incredibly dry. Your Begonia likes consistent moisture. Do not allow more than the top half of the soil to dry between watering.
Overwintering: Rex begonias make excellent houseplants and can easily be overwintered indoors. To supply plants with adequate humidity, place containers on a tray of gravel, where runoff water may collect, evaporate, and raise the air-moisture level. Avoid placing plants near drafts.
A Begonia rex needs fast-draining soil. The soil should be porous. It needs bright but indirect sunlight and the soil should always be moist. The original Begonia rex had dark leaves with wonderful silver designs.
Overwatering is the main cause of mold problems in rex begonias, and waterlogged soil will cause mold attack in a short time. Rexes like humid air but do not like wet foliage. Leaving water pooled on the leaves over night or misting in the evening Read more
semperflorens, sem-per-FLOR-enz) the fleshy leaves and flowers are edible raw or cooked. They can have a slight bitter after taste and if in water most of the time, a hint of swamp in their flavor. Sauteed alligator with Begonia sauce might be a musty challenge Read more
With their beautiful canopy of leaves, and a wide array of colorful bloom and foliage options, begonias are becoming widely popular once again. And with good reason – this old-time classic flowering annual has all-season lasting bloom power!
Generally, the rex begonia indoors prefers relatively cool temperatures, moist soil and humid conditions. Rex begonias do well in bright indirect light. Some direct sun is okay for short times, especially if it is from an eastern window that has morning sun, which is gentler.
Rex-cultorum Begonia Leaves The leaves are heart-shaped and are the most striking foliage producers. The leaves can be bright red, green, pink, silver, gray and purple in vibrant combinations and patterns. The leaves are slightly hairy and textured adding to the interest of the foliage.
Rex begonias require minimal pruning unless long, bare stems require cutting back, or you'd like to create a fuller plant. Using clean pruning snips simply cut the stem back to the base and the remaining portion should sprout new leaves and stems. Pinching the tips Read more
Caterpillars and earwigs cause similar damage to slugs and snails. They eat small, rounded holes in the begonia's leaves. You are likely to find damage to your begonia plants both day and night with these pests, rather than only in the morning. You can control Read more
Yellowing leaves, particularly affecting the lower leaves first. Brown leaf tips despite good humidity and soil moisture. Leaves dropping from the plant, often with soggy, limp petioles. Your begonia is wilting despite the soil feeling wet to the touch.
All popular types of begonias—including rex, tuberous, rhizomatous, or semperflorens—are safe bets.
However, gardeners should be aware that despite its alluring appearance, the begonia can be surprisingly toxic if eaten. Cats and other small mammals are especially vulnerable to the effects due to the relatively small amount of begonia that will need to be eaten in order Read more
Rex begonias prefer to grow in a fairly evenly moist soil. However, you must have a good balance because these plants can easily be prone to root rot. A good rule of thumb is to allow the top inch or so (2.5 cm.) to dry Read more
Common Problems With Rex Begonias The soil is too dry or too wet. The soil is not draining enough. The plant needs more light, but not intense light. The humidity levels are too low (but don't mist the plant because rex begonias do not like Read more
Begonias can be cut back to within 3 inches of the soil to revitalize them, if necessary, but pinching and pruning is not the end of the story. Sterilize pruning tools with household disinfectant spray before and after use.
Rex begonias headline the show for months on end in any shade garden, especially when grown in containers. These plants prefer shaded, humid conditions and rich, aerated soil like that found on the forest floor. Too much water and fertilizer is the kiss of death Read more
Overwatering and underwatering are the most common causes of a begonia wilting. Begonias wilt quickly once their soil dries out, but maintaining excessively wet soil can also result in dramatic wilting due to root rot. Temperature stress, transplant shock, pests, and disease can also cause Read more
Rex begonias grow well in a broad pH range but prefer a more acidic media. A range of 5.7 to 6.2 is considered optimal in peat-based soils. Feed with a balanced fertilizer at 100- to 150- ppm nitrogen. The optimal soil EC is 0.8 to Read more
Rex begonias grow at a medium speed, but they like a pot with room to grow, so you won't need to worry about repotting too often.
Rex begonias do well in bright indirect light. Some direct sun is okay for short times, especially if it is from an eastern window that has morning sun, which is gentler. For periods of the year where the sun is strongest, or if you live Read more
Answer: While rex begonias and many other houseplants prefer high relative humidities, misting is ineffective unless you're prepared to mist the plants several times a day. Also, rex begonias are not fond of water on their foliage.
Botrytis Leaf Blight You can also treat the problem with a homemade fungicide made up of 1 tablespoon of baking soda, 1 small squirt of a non-degreasing dishwashing liquid (helps the product stick to the begonia) into one quart of water. Shake well and spray Read more
Never Allow Rexes To Dry Out These begonias demand moisture from the soil – top to bottom of the pot. At no time should the mixture be drippy wet. Do not allow the pots to sit in water for any length of time, as this Read more
Rex begonias are one of the easiest houseplants to care for and happy in many conditions. But they will also let you know if they feel that their water, light, and soil conditions are a bit off for their liking.
Potting and Repotting Rex Begonias Rex begonias are rhizomatous plants that grow from a shallow and knobby rhizome. As such, they do best in large, relatively shallow pots where the rhizome has room to spread. If the rhizome still has room to grow in its Read more
Rex Begonias have rhizomatous stems, fuzzy leaves and stunning foliage. Waxy-leaved begonias (e.g., bedding) have tuberous stems, waxy leaves and are grown more for their flowers than leaves. A close-up of plant hairs on a Rex Begonia demonstrates a classic deer resistant feature that some Read more
Whether grown in containers or in the ground, begonias thrive in slightly acidic soil with a pH of 5.5 to 6.2 and lots of organic matter. In these conditions, begonias have maximum access to the nutrients behind their beauty.
Whiteflies, spider mites, thrips, fungus gnats, shore flies and mealybugs all bother begonias. You can control these pests with insecticidal soap.
Outdoors, a Rex Begonia can be grown as long as night temperatures remain above 50 degrees. They are excellent porch plants and look stunning displayed in any mostly shady garden.
Rex begonias are herbaceous perennials in zones 10-12 so they are treated as annuals or houseplant specimens in Connecticut. Rex begonias do produce delicate flowers but are usually grown for their spectacularly colored and intriguingly textured leaves.