How to Care And Grow For Flowering Begonias (Rieger Begonias)

There are many different types of begonias, but the flowering begonia is a popular choice for gardeners. These plants produce beautiful flowers in a variety of colors, and they are relatively easy to care for.

Begonias are a large group of flowering plants that include many different species and hybrids. They are known for their showy, brightly-colored flowers and are popular garden plants. Begonias are native to tropical and subtropical regions and typically prefer warm, moist conditions. Many species of begonia are grown as houseplants.

NameRieger begonia
Botanical NameBegonia x hiemalis
Size12″-18″ tall and wide
Bloom TimeWinter, but can vary
Flower ColorOrange, yellow, white, or pink
Native AreaCentral and South, Africa, southern Asia
Toxicitypeople and pets

How to Grow Flowering Begonias

There are a few things to keep in mind when growing Rieger begonias. They prefer filtered light and consistent moisture, but cannot tolerate wet feet. Be sure to plant them in a well-drained potting mix and water them when the soil surface begins to dry out. These begonias also benefit from regular fertilization.

Apply a balanced fertilizer every 2-3 weeks during the growing season. Rieger begonias are tender plants, so they must be brought indoors before the first frost. Move them to a cool, bright location and reduce watering until the leaves begin to yellow and drop.

How to Care Rieger Begonias

Rieger begonias are a type of plant that is closely related to the Begonia family. These plants are known for their beautiful flowers, which come in a wide range of colors including white, pink, red, and orange. Rieger begonias are typically easy to care for and can be grown both indoors and outdoors.

When caring for a Flowering Begonias, it is important to make sure that the plant gets enough light. These plants do best in bright, indirect sunlight. If the plant is not getting enough light, the leaves will begin to turn yellow. It is also important to ensure that the plant gets enough water. The soil should be kept moist, but not wet. The plant typically needs to be watered about once a week.


Rieger begonias need light to grow, but too much light can scorch their leaves. They do best in bright, indirect light, such as that from a north- or east-facing window. If you can’t provide bright, indirect light, you can grow Flowering Begonias under fluorescent lights.


One of the most important things to remember when watering your Rieger begonias is to never let the plant sit in water. Begonias are sensitive to root rot, so it is important to make sure that the plant is not sitting in water. The best way to water your Flowering Begonias is to water them from the bottom up. Fill a tray with water and set the plant in the tray. Allow the plant to soak up the water for about 15 minutes and then remove it from the tray.


The ideal temperature for Rieger Begonias is between 68 and 72 degrees Fahrenheit. They can tolerate some variation in temperature, but should not be exposed to temperatures below 60 degrees Fahrenheit or above 75 degrees Fahrenheit.


To maintain healthy Rieger begonias, it is important to keep the humidity level high. These plants prefer an environment with 60-70% humidity.


Rieger begonias are a type of plant that thrives in well-drained, sandy soil. The soil should be amended with organic matter, such as compost, before planting. Once the begonias are established, they do not need much fertilizer.


Fertilizers for Rieger begonias are a beautiful addition to any home, and they are relatively easy to care for. However, like all plants, they need the right nutrients to thrive. The best fertilizer for Flowering Begonias is a slow-release fertilizer that will provide them with the nutrients they need over a long period of time. There are many different brands of slow-release fertilizer on the market, so be sure to choose one that is specifically designed for begonias.


Regular pruning is essential for keeping Rieger begonias healthy and looking their best. Prune begonias back to about one-third their height after they bloom in late summer or early fall. Trimming off the spent blooms will encourage the plant to produce more flowers. You can also cut back any leggy or overgrown areas of the plant.

Propagating Rieger Begonias

Start by taking a 4-inch cutting from a healthy Rieger Begonia plant. The cutting should have at least two leaves, and it’s best if it also has a bloom or bud. Fill a planting pot with a light, well-draining potting mix, and make a hole in the center of the mix with your finger. Dip the end of the cutting into the rooting hormone, then insert it into the hole in the potting mix.

Gently press the potting mix around the base of the cutting. Water the soil, then place the pot in a bright location but out of direct sunlight. Keep the soil moist, but not soggy, and in 4-6 weeks your cutting will have rooted and be ready to transplant into a larger pot.

Growing Rieger Begonias From Seed

Rieger begonias are gorgeous flowering plants that add a touch of elegance to any garden. While they can be a bit finicky, these plants are relatively easy to grow from seed. Here is a brief guide on how to do it:

  • Start by collecting some fresh begonia seeds. You can do this by carefully removing the seeds from a ripe begonia fruit.
  • Once you have your seeds, plant them in a small pot or tray filled with moistened seed-starting mix.
  • Place the pot or tray in a warm, sunny spot and keep the soil moist. In about two weeks, you should see little seedlings poking through the soil.
  • Once the seedlings are a few inches tall, transplant them into individual pots filled with potting soil.
  • Keep the plants in a warm, sunny spot and water them regularly. In a few months, you should have beautiful blooming begonias!

Potting and Repotting Rieger Begonias

To pot or report a Rieger Begonia, start by Choosing a pot that is only 1-2″ larger in diameter than the current pot. Begonias do not like their roots to be disturbed, so a pot that is too large will stress the plant. Preparing the pot with a fresh potting mix is important to aerate the roots and allow for drainage. Gently remove the plant from its current pot, being careful not to damage the roots. Carefully tease out any tangled or matted roots, then place the plant in the new pot.

Fill in around the plant with fresh potting mix, being careful not to bury the stem. Tamp down the mix gently to firm it around the plant. Water well to settle the mix and help the plant adjust to its new home.

Common Pests

There are several common pests that can affect Rieger begonias, including aphids, mealybugs, whiteflies, and spider mites. These pests can cause damage to the leaves and flowers of the plant, and can also transmit diseases. Management of these pests typically includes the use of insecticidal soaps or oils, as well as regular monitoring and removal of any infested leaves or flowers.

Common Diseases

There are several common diseases that can affect Rieger begonias. These include root rot, powdery mildew, and leaf spot. Each of these diseases can be detrimental to the plant, so it is important to be on the lookout for them.


Rieger begonias are a type of begonia that can be overwintered indoors. They require less light and water than other begonias, making them ideal for overwintering. When bringing them indoors, cut back on the amount of water and fertilizer you give them. Allow the soil to dry out between watering. Place the begonias in a sunny spot, but out of direct sunlight.

Common Problems

Arranging begonias in a way that showcases their delightful colors and patterns can be fraught with challenges. Here are some of the most common problems people have with begonias, and some suggestions for overcoming them. People often have trouble with begonias wilting, leaves turning brown, and flowers falling off. To overcome these problems, it is important to understand the plant’s needs and provide the proper environment and care.

Wilting: Begonias need moist soil, but they cannot tolerate soggy conditions. Be sure to water deeply and allow the soil to dry out somewhat between waterings. If the leaves begin to wilt, it is a sign that the plant is not getting enough water.

Brown leaves: Begonias need bright light, but too much direct sun can cause the leaves to turn brown. If this happens, move the plant to a shadier spot. Too much water can also cause leaves to turn brown, so be sure to check the soil before watering.

Flowers falling off: Begonias produce beautiful flowers, but they can be delicate. To prevent flowers from falling off, make sure the plant has enough water and is not in a drafty location.


Which begonias bloom all year?

There are a few types of begonias that bloom all year, including the rex begonia, the angel wing begonia, and the semperflorens begonia.

What are the benefits of growing flowering begonias?

There are many benefits to growing flowering begonias. They are easy to grow, they are low maintenance, they bloom continuously, and they are available in a wide variety of colors.

Do you cut back begonias after flowering?

Some people choose to cut back their begonias after flowering, while others let them grow naturally. Ultimately, it is up to the individual to decide what to do with their plant.