How to care for Begonias? The ultimate caring guide for Begonias

Begonias are among the most beloved flowering plants, admired for their vibrant blossoms and lush, decorative foliage. They are versatile plants that can thrive both indoors and outdoors, making them a favorite choice for gardeners of all experience levels. Whether you are cultivating begonias in a garden bed, on your balcony, or as a houseplant, understanding how to care for begonias properly is the key to enjoying their beauty year after year.

Begonias are one of the most popular indoor and outdoor plants due to their beautiful foliage and colorful blooms. They come in various shapes, sizes, and colors, making them an excellent choice for any garden or indoor space.

In this ultimate caring guide for Begonias, we will cover everything you need to know to ensure your plants thrive. From watering and fertilizing to pest control and pruning, we've got you covered. With a bit of knowledge and attention, your Begonias will reward you with vibrant blooms and lush foliage year after year. By following these begonia plant care steps, you will discover how to care for a begonia plant successfully and enjoy continuous blooms. 

Whether you are cultivating begonias in a garden bed, on your balcony, or as a houseplant, selecting healthy begonia bulbs is the first step to success.


How to look after Begonias: tips for bigger flowers

If you are wondering how to look after begonias and get your begonias to bloom bigger, there are several things you can do.

  1. First, ensure that your begonias are getting enough sunlight. They don’t like too much direct sunlight, but they thrive in partial sun/ partial shade. If your begonias are not getting enough light, consider moving them to a brighter location or adding supplemental light.
  2. Secondly, fertilize your begonias regularly. Use a balanced fertilizer every two to three weeks during the growing season, which is typically from spring to fall. Be sure to follow the instructions on the fertilizer package to avoid over-fertilizing, which can damage your plants.
  3. Thirdly, water your begonias appropriately. Begonias prefer moist but well-drained soil. Avoid overwatering, which can cause root rot, and underwatering, which can lead to stunted growth and fewer blooms. Water your begonias when the top inch of the soil feels dry.
  4. Lastly, deadhead your begonias regularly. Deadheading, which involves removing spent blooms, encourages the plant to produce more flowers. Be sure to pinch off the blooms just below the stem to prevent damage to the plant.

If you’re looking after your begonias, they will reward you with vibrant, abundant growth and flowers that bring continuous beauty to your indoor or outdoor space.

closeup begonia


Watering strategies for healthy Begonia growth

Overwatering begonias can be destructive to their growth and health. Watering them every day can lead to root rot, which is caused by excess moisture in the soil. Begonias prefer moist soil, but they do not thrive in standing water.

The frequency of watering begonias depends on several factors, including the type of begonia, the size of the pot, and the environmental conditions. As a general rule of thumb, begonias should be watered when the top inch of soil feels dry to the touch. This may be every few days or once a week, depending on the (weather) conditions.

It's important to note that the type of soil and drainage also play a role in the watering frequency. Begonias prefer well-draining soil that is rich in organic matter. If the soil is too compact or heavy, it may retain moisture for longer, requiring less frequent watering.

 

Pinching Begonias: determining optimal height

Pruning is an important aspect of begonia care that helps to promote healthy growth and ensure an abundant bloom. However, knowing when to prune and how much to prune can be a bit tricky. 

Pruning should be done when the plants are about 8-10 inches tall. It's important to remove any damaged or dead leaves, stems, or flowers to promote healthy growth. Pruning can also help to prevent diseases and pests from taking hold.

When pruning begonias, it's important not to remove more than one-third of the plant at a time. This can stress the plant and hinder its growth. Regular pruning throughout the growing season can help to keep begonias looking neat and tidy, promote fuller growth, and ensure an abundant bloom.

 

Understanding Begonia height and the need for staking

Begonias can grow anywhere from 6 inches to 3 feet tall, depending on the variety. The height of the plant can also be affected by its environment, such as the amount of sunlight and nutrients it receives.

As for staking, it depends on the variety and size of the begonia. Tall varieties that grow above 2 feet may need staking to prevent them from bending or breaking under their weight. Additionally, plants that grow in windy areas may also require staking to keep them upright.

To stake a begonia, use a bamboo or wooden stake and gently tie the stem to the stake with a soft string or cloth. Make sure not to tie it too tightly, as it can damage the stem. Staking should be done early in the plant's growth to prevent it from growing crooked or leaning toward the light source.

closeup pink begonia


Fertilizing Begonia plants

When it comes to fertilizing begonias, choosing the right type of fertilizer is crucial. The best fertilizer for begonias is one that is high in phosphorus, as it promotes flower production and helps the plant to develop a strong root system. A fertilizer with an NPK ratio of 5-10-5 or 10-10-10 is ideal for begonias. Fertilizers with organic ingredients such as fish emulsion, bone meal, and compost are also excellent choices as they provide additional nutrients and improve the soil's overall health.

Understanding how often to fertilize begonias allows you to maintain healthy growth without overwhelming the plant. It's important to apply fertilizer at the right time to maximize its benefits. By consistently feeding your begonias with the right begonia fertilizer, you can encourage continuous blooming and lush, vibrant greenery in both indoor and outdoor settings. Begonias should be fertilized every four to six weeks during the growing season, which typically starts in mid-spring and lasts until early fall. Avoid fertilizing during the winter months when begonias go dormant.

 

DIY fertilizer recipes for thriving Begonias

While there are plenty of commercial fertilizers available, making your own homemade fertilizer can be an inexpensive and natural alternative. Here's how to make homemade fertilizer for begonias.

  1. Compost tea: compost tea is an excellent source of nutrients for begonias. To make compost tea, fill a bucket with compost and add water. Let it sit for a few days, stirring occasionally, until the water turns brown. Dilute the compost tea by mixing one part tea with three parts water and use it to water your begonias.
  2. Epsom salt: epsom salt is rich in magnesium and is an excellent source of nutrients for begonias. Dissolve one tablespoon of Epsom salt in a gallon of water and use it to water your begonias once a month.
  3. Banana peel: banana peels are rich in potassium, which is essential for begonias' growth and blooms. Simply bury a few banana peels around your begonias, and as they decompose, they release nutrients that your plants can absorb.
  4. Eggshells: crushed eggshells are a good source of calcium, which is essential for begonias' growth and strength. Simply crush a few eggshells and sprinkle them around your begonias.

In conclusion, making homemade fertilizer for begonias is easy, inexpensive, and a natural alternative to commercial fertilizers.

 

Dividing Begonias: step-by-step guide

As begonias grow, they can become crowded and may need to be divided. Dividing begonias is a simple process that can help to keep them healthy and vibrant.

The best time to divide begonias is in late winter or early spring. To begin, remove the plant from its container or garden bed and gently shake off any loose soil. Look for areas where the plant has naturally separated into sections and gently pull them apart. If the roots are too tightly packed, use a clean and sharp knife to carefully divide the plant into sections, making sure that each section has at least one stem and a healthy root system.

Once you have divided the plant, replant each section into a new container or garden bed, making sure to give them plenty of space to grow. Water the newly planted sections thoroughly and place them in an area with partial shade for a few days to help them adjust to their new environment.

soft pink begonia


Impact of avoiding Begonia division

Dividing begonias is a crucial process to ensure that they continue to thrive and bloom. But what happens if you don't divide your begonias?

If you don't divide your begonias, the plants will become root-bound, meaning that the roots have outgrown the pot, and there is no more room for growth. This can cause the plant to become stressed, leading to yellowing leaves, stunted growth, and poor flowering. Over time, the plant's root system can become compacted, making it difficult for the plant to absorb nutrients and water, which can result in root rot and eventually death.

If you’ve planted your begonias in the garden, then you’ll be fine. 

 

How to care for Begonias outside in your garden

Gardeners who enjoy colorful and lively garden displays often want to know how to care for begonias outside. When planted outdoors, begonias can provide striking flower beds, borders, or hanging baskets that instantly enhance any landscape. To succeed with outdoor begonias, it’s important to choose an appropriate location. How to care for begonias outdoors involves placing them in areas where they receive morning sunlight and afternoon shade, as direct sun during the hottest parts of the day can damage their leaves. The soil should be kept moist yet well-drained, and applying a layer of mulch can help retain soil moisture while moderating temperature fluctuations around the roots. Regular watering is especially crucial during periods of dry weather, and a consistent fertilization routine will encourage more frequent and vibrant blooms. Proper care will ensure your outdoor begonias provide months of dazzling color, from late spring well into the first frost, creating a lush and welcoming garden environment. For more detailed guidance on planting schedules, check our blog on when to plant begonia bulbs.


How to care for Begonias indoors as houseplants

Indoor plant enthusiasts often ask how to care for begonias indoors, since these plants are excellent houseplants that add life and charm to any room. When grown inside, begonias need bright, indirect light to thrive; placing them near a window with filtered sunlight works best. Direct sunlight passing through glass can scorch delicate leaves, while insufficient light can lead to leggy and weak growth. Indoor begonias should be kept in warm rooms away from drafts and sudden temperature changes. Maintaining humidity is also important; placing a small tray of water nearby or using a humidifier can create a suitable microclimate for optimal growth. Allow the top inch of soil to dry slightly between waterings, which prevents overwatering and root rot. With these indoor care practices, your begonias will remain lush, vibrant, and healthy, adding a beautiful touch of greenery and colorful blooms to your home for months on end. If you want to explore a full guide on how to grow begonias, including propagation and detailed growth tips, this resource is invaluable.

How to care for Begonias in pots and containers

If you have limited garden space, knowing how to care for begonias in pots can help you enjoy these beautiful plants anywhere, from patios to balconies and even indoor windowsills. Container-grown begonias require special attention to ensure their soil remains healthy and well-drained. Start by selecting a container with proper drainage holes to avoid waterlogging. Fill it with a high-quality potting mix enriched with compost to provide adequate nutrition. Plant the begonias about 6 inches apart, leaving enough room for air circulation and growth. Container-grown begonias often require more frequent watering than those in garden beds, as pots can dry out more quickly, especially during warm weather. Regularly check the soil and adjust watering as needed to keep it evenly moist. Another advantage of container planting is the flexibility to move your begonias to optimize light exposure, allowing you to enjoy a stunning display of colorful blooms wherever you place them, both indoors and outdoors.

 

Post-flowering care for Begonia plants

When begonias have finished flowering, it's essential to deadhead them by removing the spent blooms. This process promotes the growth of new buds and keeps the plant looking tidy. Deadheading also prevents the plant from wasting energy on producing seeds, redirecting that energy to the growth of new blooms.

If you live in an area with a mild climate, such as USDA hardiness 9-10, you can leave the begonias outside. In the wintertime, cover it up with some extra mulch to protect them from the harsh temperatures. If you live in an area with a colder climate, you should dig up your begonias and store them indoors. Store them in a cool, dry, and dark place such as a basement or garage. An ideal temperature would be 40-50 degrees Fahrenheit.  

 

Wintering Begonias: leaving them in the ground

The answer depends on your location and climate. Begonias are native to tropical and subtropical regions, and they prefer warm temperatures and high humidity. If you live in a region with mild winters, where the temperature does not fall below freezing (such as USDA hardiness zone 9-10), you can leave begonias in the ground year-round. 

However, if you live in an area with harsh winters (USDA hardiness zone 8 and below), it's best to dig up your begonias before the first frost and store them indoors over the winter. This will protect the bulbs from freezing and ensure their survival for the next growing season.

To store begonias over winter, dig up the bulbs and gently remove any excess soil. Allow the bulbs to dry in a warm, dry place for a few days. Once dry, store the bulbs in a cool, dark, and dry location, such as a basement or garage, until it's time to replant them in the spring.

pot with pink begonia


Begonia care tips for yearly return expectations

Finally, here are some essential begonia care tips that every gardener should keep in mind for thriving plants that will return yearly. Begonias are considered perennials in warmer climates, where they can survive year-round. They are hardy in USDA hardiness zones 9-10. Within these climate zones, you can leave Begonias outside year-round and they come back every year. 


However, in colder regions, begonias are grown as annuals and will not survive the winter. This goes for USDA hardiness zones 8 and below. Within these climates, you must dig up the Begonias and store them indoors over the winter (see paragraph above). You can plant them again the next spring and so on. By implementing these comprehensive care strategies, your begonias will remain healthy, producing abundant flowers that add lasting beauty to your garden and home.