Introduction
There is a unique sense of joy that comes with seeing the first bright blossoms of a begonia in early summer. These plants are beloved for their ability to brighten up shady corners of the garden with waxy leaves and vibrant, jewel-toned flowers. Whether you are planting them in elegant hanging baskets or using them to edge a garden path, begonias offer a reliable splash of color that lasts until the first frost. At Longfield Gardens, we enjoy these versatile plants because they are as easy to care for as they are beautiful.
One of the most common questions we hear from home gardeners is: Are begonia plants perennial? The answer depends largely on where you live and which type of begonia you choose to grow. While most gardeners in the United States treat them as annuals, nearly all begonias are technically perennials in their native tropical environments. Understanding how these plants grow can help you decide whether to treat them as a seasonal treat or a long-term investment. For an overview of begonia types and growing conditions, see All About Begonias.
This guide is designed for home gardeners who want to understand the life cycle of begonias. We will cover the differences between annual and perennial growth, the specific types of begonias you might find, and how you can help these plants return year after year. By the end of this article, you will have a clear plan for making the most of these charming flowers in your own backyard.
Begonias are versatile, resilient, and rewarding plants that can live for many years if you provide the right winter protection.
Understanding the Life Cycle of Begonias
To understand if begonias are perennials, it helps to start with a few basic gardening definitions. A perennial is a plant that lives for three years or more, often going dormant in the winter and returning in the spring. An annual is a plant that completes its entire life cycle—from seed to flower to seed—in a single growing season and then dies.
In the world of begonias, things are a bit more nuanced. Most begonias are "tender perennials." This means they have the genetic ability to live for many years, but they lack the hardiness to survive freezing temperatures. Because they are native to tropical and subtropical regions in South and Central America, Africa, and Southern Asia, they expect warm weather year-round.
When we plant these tropical beauties in most parts of the United States, the first hard frost of autumn usually kills the foliage. If the ground freezes, the roots or tubers will also die. This is why the vast majority of gardeners buy new begonias every spring and treat them exactly like annuals. However, if you live in a frost-free climate or take steps to protect the plants during the winter, you can enjoy the same begonia for many seasons.
Key Takeaway: Most begonias are perennials by nature but annuals by climate. Unless you live in a very warm region (USDA Zones 9-11), they will not survive the winter outdoors without help.
The Three Main Groups of Begonias
Not all begonias are the same. To determine how to care for yours, you first need to identify which group it belongs to. The growth habit of the plant dictates how it reacts to the cold and whether it can be saved for next year.
Fibrous-Rooted Begonias (Wax Begonias)
Wax begonias are the most common variety found in garden centers. They have small, succulent leaves that feel waxy to the touch and produce clusters of red, pink, or white flowers. These plants have a fibrous root system, similar to most common bedding plants. While they are technically perennials, they are the most difficult to overwinter as "dormant" plants. Most gardeners grow these as annuals or bring them inside as active houseplants during the winter.
Tuberous Begonias
These begonias grow from a thick, potato-like underground stem called a tuber. Tuberous begonias are famous for their large, spectacular blooms that can look like roses or camellias. Because the plant stores its energy in a tuber, it is much easier to save these for the next year. You can allow the plant to go dormant, dig up the tuber, and store it in a cool, dry place until spring. Longfield Gardens’ tuberous begonia growing guide offers additional planting and care ideas.
Rhizomatous and Cane Begonias
This group includes the popular "Angel Wing" begonias and Rex begonias. They are often grown for their striking, patterned foliage rather than their flowers. They grow from rhizomes (thickened stems that grow horizontally) or upright, cane-like stems. Like wax begonias, these are tender perennials. They are most commonly kept as perennials by moving the entire plant indoors to a windowsill when temperatures start to drop.
The Exception: The Hardy Begonia (Begonia grandis)
While most begonias shudder at the thought of a frost, there is one notable exception that acts like a true garden perennial in much of the United States. Begonia grandis, commonly known as the Hardy Begonia, is a remarkable plant that can survive winters in USDA Zones 6 through 9.
Unlike its tropical cousins, the Hardy Begonia is perfectly happy to stay in the ground when the snow falls. It features beautiful heart-shaped leaves with olive-green tops and striking red undersides. In late summer, it produces airy clusters of delicate pink or white flowers.
If you want a begonia that returns every year without any extra work, this is the variety for you. One interesting habit of this plant is that it is a "late riser" in the spring. It often doesn't emerge from the soil until late May or early June, so it is a good idea to mark its location so you don't accidentally plant something else on top of it while you are doing your spring cleaning.
What to do next:
- Identify if your begonia has a "potato-like" tuber or thin, thread-like roots.
- Check your USDA Hardiness Zone to see if you are in a "frost-free" area (Zones 9-11).
- Decide if you want to store your plants for winter or simply start fresh next year.
How to Overwinter Tuberous Begonias
If you have fallen in love with a specific tuberous begonia, you don't have to say goodbye when autumn arrives. Storing the tubers is a simple process that allows you to enjoy larger, more vigorous plants each year. As the tuber grows older, it often produces even more impressive displays of flowers.
At Longfield Gardens, we recommend waiting until the first light frost has touched the foliage before you begin the storage process. The cold snap tells the plant it is time to go dormant and pull its energy down into the tuber.
- Dig it up: Once the leaves have yellowed or been hit by a light frost, carefully lift the tuber from the soil using a garden fork. Be gentle, as the tubers can be brittle.
- Clean and dry: Remove the wilted stems and shake off the excess soil. Place the tubers in a warm, dry, and shaded area for about a week. This "curing" process helps the outer skin toughen up, which prevents rot during storage.
- Store in a breathable medium: Place the dry tubers in a cardboard box or a paper bag filled with slightly damp peat moss, vermiculite, or wood shavings. Do not use plastic bags, as they trap moisture and will cause the tubers to rot.
- Keep it cool: Store the box in a dark place that stays between 40°F and 50°F. A cool basement or a crawl space is usually ideal.
- Check in: Give your tubers a quick look once a month. If they look shriveled, mist the packing material slightly with water. If any look soft or mushy, discard them immediately.
Key Takeaway: Tuberous begonias are the easiest varieties to keep as perennials. Storing the tubers over winter is a simple way to save money and grow even larger plants the following season.
Keeping Begonias as Houseplants
If you are growing wax begonias, Rex begonias, or Angel Wing varieties, you cannot store them as dry tubers. Instead, you can keep them as perennials by transitioning them into your home. This is a great way to keep your favorite colors alive and even enjoy a bit of indoor greenery during the dark winter months.
The secret to success is timing. Don't wait until it is freezing outside to bring your plants in. Begonias are sensitive to sudden changes in temperature. When night temperatures begin to consistently drop below 55°F, it is time to move them.
Start by checking the plants for any "uninvited guests" like aphids or fungus gnats. A gentle spray with a garden hose or an application of insecticidal soap can help ensure you don't bring pests into your living room. Once the plants are clean, move them to a spot that receives bright, indirect light. A north or east-facing window is usually perfect.
During the winter, begonias grow much more slowly. You should reduce your watering and stop fertilizing entirely until you see new growth in the spring. The air inside homes can be quite dry, so placing the pots on a tray filled with pebbles and water can help provide the humidity these tropical plants crave.
Right Plant, Right Place: Setting the Stage for Success
Whether you treat your begonias as annuals or perennials, their performance depends on getting the basics right. We often say that "right plant, right place" is the most important rule in gardening. If you provide a begonia with its ideal environment, it will be much more resilient to pests, diseases, and weather changes. Longfield Gardens’ begonia shade guide explains how light, soil, and drainage affect performance.
Light Requirements
Most begonias are famous for their love of shade, but "shade" can mean many things. Most varieties prefer dappled sunlight or "bright shade." This means they want to be in a spot that is bright enough to read a book comfortably, but out of the direct, scorching midday sun. If the leaves of your begonia look pale or scorched, they are likely getting too much sun. If the plant is leggy and isn't blooming well, it might be too dark.
Soil and Drainage
If there is one thing that will cause a begonia to fail, it is "wet feet." Begonias have succulent stems that hold a lot of water, which makes them very susceptible to rot if the soil is soggy. Whether you are planting in the ground or in a container, ensure the soil is loose and drains quickly. For containers, we recommend using a high-quality potting mix and ensuring the pot has plenty of drainage holes.
Watering Habits
The best way to water a begonia is to wait until the top inch of soil feels dry to the touch. When you do water, apply it directly to the soil rather than over the leaves. Getting the foliage wet can lead to powdery mildew, a white fungal growth that looks like flour dusted on the leaves. Keeping the leaves dry and ensuring good airflow around the plants will keep them healthy all season long.
What to do next:
- Check the drainage of your pots; add extra holes if water doesn't flow out quickly.
- Observe your garden at noon to see which areas are protected from the hottest sun.
- Practice the "finger test" for watering: if the soil is damp, wait another day.
Choosing the Best Varieties for Your Needs
Because begonias are such a large family of plants, you can find a variety for almost any decorative need. Selecting the right type from the start makes it easier to achieve the look you want.
If you want a low-maintenance border or a "carpet" of color, wax begonias are your best friend. They are tough, tolerate a bit more sun than other types, and their flowers are "self-cleaning," meaning you don't have to pinch off dead blooms to keep them looking tidy.
For hanging baskets or window boxes where you want a "spiller" effect, look for trailing tuberous begonias. The Hanging Begonias collection includes cascading options suited to containers and shaded porches.
If you are more interested in interesting textures and patterns, Rex begonias are the superstars of the foliage world. Their leaves can feature swirls of silver, purple, pink, and deep green. They are often grown in mixed containers as a "foliage filler" but are equally stunning when grown alone in a decorative ceramic pot.
Common Myths About Begonias
When searching for information on begonias, you might come across some conflicting advice. Let's clear up a few common misconceptions.
Myth 1: Begonias are completely shade-loving. While they don't want the hot afternoon sun, most begonias actually bloom better with a little bit of morning light. A few hours of gentle sun helps the plant produce the energy it needs for those big blossoms.
Myth 2: You must use special "begonia fertilizer." While specialized fertilizers exist, most begonias do perfectly well with a balanced, water-soluble fertilizer applied at half-strength every two to four weeks during the growing season. We suggest avoiding high-nitrogen fertilizers, which can lead to lots of leaves but very few flowers.
Myth 3: Begonias are hard to grow. Begonias are actually some of the most "set it and forget it" plants for the shade. As long as you don't overwater them and keep them out of the direct sun, they generally take care of themselves. They aren't prone to many pests, and they don't require the constant deadheading that many other annuals do.
Growing Begonias as Perennials in Warm Climates
If you are lucky enough to live in USDA Zones 9, 10, or 11, you can treat almost all begonias as true garden perennials. In these regions, the plants can stay in the ground year-round. However, even in warm climates, begonias appreciate a bit of a "rest" period during the winter.
In the southern parts of the US, winter often brings drier air and slightly cooler nights. You may notice your begonias stop blooming or drop a few leaves. This is normal. During this time, reduce your watering and hold off on fertilizing. As the days get longer and the temperatures rise in the spring, the plants will naturally kick back into high gear.
Even in warm zones, it is a good idea to have some frost cloth or old blankets on hand. On the rare night when temperatures dip toward freezing, a quick covering can save your plants from leaf damage.
Troubleshooting Your Begonia Growth
Even with the best care, you might run into a few hurdles. Usually, the solution is simple and involves a small adjustment to the plant's environment.
If your begonia leaves are turning yellow and falling off, it is often a sign of overwatering. Check the soil—if it feels like a wet sponge, let it dry out completely before watering again. If the stems feel soft or mushy near the soil line, rot may have set in. In this case, it is best to remove the affected plant and improve the drainage in that area for future plantings.
If the leaves look healthy but there are no flowers, the plant might be in too much shade. Try moving your container to a slightly brighter spot. If the plant is in the ground, you might need to trim back some overhanging branches to let in more light.
Finally, keep an eye out for slugs and snails. These garden visitors love the succulent leaves of begonias as much as we do. If you see jagged holes in the foliage, a simple non-toxic slug bait or a shallow saucer of beer can help keep your plants safe.
Using Begonias in Landscape Design
Because begonias come in so many shapes and sizes, they are a designer's dream. They are excellent for creating "rhythm" in the garden. By repeating the same color of wax begonias along the front of a border, you can lead the eye through the landscape.
In containers, begonias work beautifully in the "Thriller, Filler, Spiller" arrangement. An upright Angel Wing begonia makes a fantastic "thriller" in the center. Surround it with the colorful foliage of a Rex begonia as a "filler," and finish with a trailing tuberous variety as the "spiller." For additional ideas, see Longfield Gardens’ begonia container guide.
If you have a dark corner under a large tree where grass won't grow, begonias can turn that "problem area" into a focal point. Because their roots are relatively shallow, they don't compete heavily with the roots of large trees. Just be sure to add a layer of compost to the area before planting to give them the nutrients they need.
Realistic Expectations for Your Garden
Gardening is a partnership between you and nature. While we provide the best bulbs and plants, factors like your local soil, the amount of rainfall you receive, and unexpected cold snaps all play a role in how your garden performs.
If you decide to try overwintering your begonias, remember that it is a skill that gets better with practice. Don't be discouraged if a few tubers don't make it through their first winter. Each season is an opportunity to learn what works best for your specific microclimate. Whether your begonias live for one spectacular summer or return for five years, the beauty they bring to your home is always worth the effort.
At Longfield Gardens, we stand behind the quality of our plants. We work with experienced growers to ensure you receive healthy, high-quality bulbs and tubers that are ready to thrive. If you ever have a question about how your plants are performing, our team is always here to help you find the best path forward.
Conclusion
So, are begonia plants perennial? The answer is a resounding "yes"—with a few conditions. While most of us treat them as annuals due to our cold winters, these plants have a natural ability to live for years. Whether you choose to plant the hardy Begonia grandis for a permanent garden fixture, store your favorite tubers in the basement, or bring your wax begonias inside as houseplants, you have many options for enjoying these flowers year after year.
Gardening should be a source of relaxation and beauty, and begonias are the perfect partners for a low-stress, high-reward landscape. By getting the basics of light, water, and drainage right, you can ensure your begonias put on a show from the moment they are planted until the first frost.
- Identify your begonia type to determine its winter needs.
- Ensure excellent drainage to prevent root and stem rot.
- Consider overwintering tubers as an easy way to save money and grow larger plants.
- Use the Hardy Begonia if you want a plant that stays in the ground year-round.
"Begonias prove that you don't need a high-maintenance garden to have a beautiful one. With just a little bit of shade and the right amount of water, they offer a consistent, vibrant display that few other plants can match."
We invite you to explore the wonderful world of begonias and see just how much life and color they can add to your home. When you're ready to start your next garden project, we are here to provide the quality plants you need for success.
FAQ
Can begonias survive a frost?
Most begonias are very sensitive to cold and will suffer damage if temperatures drop below 50°F. A light frost will usually kill the foliage of wax and tuberous begonias, though the tubers can survive if they are dug up promptly. The only common exception is the Hardy Begonia (Begonia grandis), which is hardy down to USDA Zone 6.
Do I have to deadhead begonias to keep them blooming?
One of the best things about wax begonias and many modern hybrid varieties is that they are "self-cleaning." This means the old flowers fall off on their own, and the plant continues to produce new ones without any help from you. Tuberous begonias may benefit from the occasional removal of spent blooms to keep the plant looking tidy, but it isn't strictly necessary for bloom production.
Can I grow begonias in full sun?
Most begonias prefer partial shade or filtered light. However, some newer varieties, like the Surefire series, are bred to handle more sun. Generally, begonias with darker or bronze foliage can tolerate more sunlight than those with bright green leaves. In northern climates, they can handle more sun than they can in the hot, intense heat of the South. For more detail, read the begonia light guide.
Why are the leaves on my begonia turning brown at the edges?
Brown, crunchy edges are usually a sign of low humidity or leaf scorch from too much direct sunlight. If your plant is indoors, try placing it on a humidity tray. If it is outdoors, ensure it is protected from the harsh afternoon sun. It can also be a sign of underwatering, so check to make sure the soil is staying consistently moist but not soggy.
