Do Begonias Grow Back? How to Enjoy Them Year After Year

Table of Contents

1. Introduction
2. Understanding Begonia Types and Their Life Cycles
3. Will Begonias Grow Back After Winter?
4. How to Overwinter Tuberous Begonias for Spring Regrowth
5. Growing Back Wax and Fibrous Begonias
6. The Only "Hardy" Begonia: Begonia Grandis
7. Bringing Begonias Back to Life in Spring
8. Simple Care for Consistent Regrowth
9. Troubleshooting Common Regrowth Issues
10. FAQ
11. Conclusion

Introduction

Begonias are a favorite for many gardeners because they provide constant, vibrant color in those tricky, shaded corners of the yard. Whether you love the massive, rose-like blooms of tuberous varieties or the reliable, waxy leaves of bedding types, there is something incredibly rewarding about seeing these plants thrive. Many people treat them as one-season wonders, but the good news is that you can enjoy your favorite plants for many years to come.

At Longfield Gardens, we believe that gardening is most enjoyable when you understand the natural rhythm of your plants. Begonias are technically tender perennials, which means they have the potential to live a very long time if they are protected from freezing temperatures. Knowing how to help them through the winter is the key to seeing those beautiful sprouts return each spring.

This guide will explain which begonias grow back on their own, which ones need a little help from you, and the simple steps to ensure your garden stays colorful year after year. By following a few basic care steps, you can transform these plants from temporary seasonal accents into long-term garden staples.

Understanding Begonia Types and Their Life Cycles

To answer the question of whether begonias grow back, you first need to identify which type you are growing. While they all share the name "begonia," their root systems and growth habits vary significantly. This determines how they handle the winter and what they need to emerge again in the spring.

Tuberous Begonias

These are the showstoppers of the shade garden. They grow from a thick, potato-like underground structure called a tuber. Tuberous begonias, such as the "Non-Stop" or "Illumination" series, are designed by nature to go dormant. In their native climates, they rest during the dry season and grow back when the rains return. In a typical US backyard, they go dormant when the weather turns cold. Because they have a "storage tank" of energy in their tuber, they are the easiest type to save and grow back year after year. If you want a ready-to-plant option, try Begonia Non Stop Mix.

Wax (Fibrous) Begonias

Often called bedding begonias, these are the small, mounding plants you see in garden centers every spring. They have fibrous roots rather than tubers. In tropical climates, they grow year-round as perennials. However, in most of the United States, they are treated as annuals because they cannot survive a frost. They do not have a dormant phase, so to make them "grow back," you actually have to keep them growing as houseplants through the winter.

Cane and Rhizomatous Begonias

This group includes the famous "Angel Wing" begonias and "Rex" begonias. Like wax begonias, these do not have a dormant period. They grow from thickened stems (canes) or horizontal surface stems (rhizomes). While they are often grown as houseplants year-round, many gardeners move them outside for the summer. To see these grow back next year, they must be brought indoors before the first frost.

Will Begonias Grow Back After Winter?

The answer depends heavily on your local climate and the specific variety of plant. Most begonias are tropical in origin and are very sensitive to cold. If the ground freezes in your area, any begonia left outside will likely turn to mush and will not return.

For gardeners in very warm climates (USDA hardiness zones 9 through 11), some begonias may survive the winter outdoors. In these regions, the plants might slow down or lose some leaves during the coolest months, but they often push out new growth as soon as the spring sun warms the soil.

For the rest of us in zones 8 and below, begonias require a little intervention. If you live in a region with frost and snow, you have two main paths:

1. Dormancy: Letting tuberous begonias "sleep" in a cool, dry place.
2. Indoor Growth: Keeping fibrous, cane, or Rex begonias active as houseplants.

Key Takeaway: Begonias are perennials by nature but annuals by climate in most of the US. To make them grow back, you must protect their roots or tubers from freezing temperatures.

How to Overwinter Tuberous Begonias for Spring Regrowth

Tuberous begonias are the most reliable candidates for "growing back" because their tubers act as a natural reset button. If you have a variety with large, spectacular flowers, it is well worth the effort to save the tuber.

Step 1: Wait for the First Light Frost

The best time to start the process is when the weather begins to shift in autumn. A very light frost that nips the leaves is actually helpful—it signals to the plant that it is time to move its energy down into the tuber for storage. You will notice the leaves start to yellow or turn brown. This is a natural part of the cycle, not a sign of failure.

Step 2: The Digging and Curing Process

Once the foliage begins to fade, carefully dig up the tubers. It is best to use a garden fork and stay several inches away from the base of the plant to avoid nicking the tuber. Lift the whole root ball out of the ground or pot.

Before storing them, they need to "cure." This just means letting them dry out so they don't rot during the winter. Place the tubers in a warm, dry, and shaded spot (like a garage or a covered porch) for about a week. Leave the soil and stems attached for now; as they dry, the stems will eventually pull away easily from the tuber.

Step 3: Cleaning and Storing

After a week, gently brush off any remaining dry soil and remove the withered stems. If a stem doesn't fall off with a light tug, give it a few more days. Once clean, place the tubers in a box filled with a dry insulating material. Good options include:

• Peat moss
• Vermiculite
• Wood shavings or sawdust
• Shredded newspaper

Store the box in a cool, dark, and dry location. A basement or an unheated (but frost-free) closet is ideal. Aim for temperatures between 45°F and 55°F.

What to do next: Winter Storage Checklist

• Check your stored tubers once a month to ensure they are firm.
• If you see any soft spots, remove that tuber immediately to protect the others.
• If the tubers look very shriveled, you can give the packing material a very light mist of water, but keep it mostly dry.
• Keep the box away from light to prevent the tubers from sprouting too early.

Growing Back Wax and Fibrous Begonias

Since wax begonias and Rex varieties do not go dormant, they won't grow back if they are left in the garden or stored in a dark box. To see them again next year, you need to treat them as houseplants.

Moving Indoors

In early autumn, before night temperatures drop below 50°F, choose the healthiest plants from your garden to bring inside. It is much easier to start with a plant that is still vigorous. Dig them up and pot them in a high-quality, well-draining potting mix. Because indoor air is often drier than outdoor air, it is a good idea to prune the plant back by about a third. This reduces the stress on the roots while they adjust to the new environment.

Indoor Care for Continued Growth

Place your potted begonias in a spot that gets bright, indirect light. A north- or east-facing window is usually perfect. They don't need much fertilizer during the winter because the shorter days naturally slow their growth. Water only when the top inch of soil feels dry to the touch.

One of the most helpful things you can do for indoor begonias is to provide a little extra humidity. You can do this by placing the pots on a tray filled with pebbles and a bit of water. As the water evaporates, it creates a moist microclimate around the leaves.

The Only "Hardy" Begonia: Begonia Grandis

If you want a begonia that truly grows back on its own without any lifting or indoor care, you should look for Begonia grandis. This is the only species considered "hardy" in many parts of the US (typically down to zone 6, and sometimes zone 5 with heavy mulching).

Begonia grandis looks very much like a classic begonia, with heart-shaped leaves and dainty pink or white flowers. In the fall, the plant produces tiny "bulbils" in the leaf axils. These drop to the ground and sprout the following spring. While the main plant dies back to the ground in winter, the root system survives under the soil. In the spring, it is often one of the last plants to emerge, so don't be worried if you don't see it until late May or early June.

Bringing Begonias Back to Life in Spring

The most exciting part of the process is when your begonias finally start to grow back. For tuberous varieties, this "wake-up call" usually starts indoors about six to eight weeks before the last expected frost in your area.

Waking Up Stored Tubers

In late winter or early spring, bring your tubers out of storage and move them to a warm, bright room. Look for the "hollow" side of the tuber—this is the top where the sprouts will emerge.

1. Placement: Place the tubers on top of a tray filled with moist potting soil. Do not bury them completely; keep the tops exposed.
2. Warmth: They need a bit of heat to get going. A room temperature around 70°F is perfect.
3. Watering: Water very sparingly at first. You want the soil to be damp like a wrung-out sponge, but never soggy. Too much water before the roots have formed can cause the tuber to rot.
4. Growth: Once you see small pink or green sprouts emerging from the hollow center, you can lightly cover the tuber with another half-inch of soil.

Acclimatizing Your Plants

Whether you are moving a tuberous begonia out of its "nursery" or moving a wax begonia back out to the patio, the transition must be gradual. This process is called "hardening off."

Start by placing your plants in a sheltered, shady spot for just a few hours a day. Gradually increase their time outside and their exposure to light over the course of 7 to 10 days. Only leave them out overnight once you are certain there is no risk of frost and the night temperatures are consistently above 50°F.

Simple Care for Consistent Regrowth

Getting begonias to grow back is only half the battle; keeping them healthy throughout the summer ensures they have enough energy to survive the next winter. Success with begonias often comes down to getting a few simple things right.

Right Light and Location

Most begonias prefer "dappled" sunlight. Imagine the light under a tall tree where the sun peeks through the leaves. If they get too much direct, hot afternoon sun, their leaves may scorch or turn brown at the edges. If they are in too much shade, they may become "leggy" (tall and thin) and produce fewer flowers. Finding that "goldilocks" zone of bright but indirect light is the best way to ensure vigorous growth.

Watering Wisdom

Begonias have succulent stems, which means they store a fair amount of water within the plant itself. Because of this, they are much more likely to suffer from overwatering than underwatering.

• The Finger Test: Always check the soil before watering. If the top inch is still moist, wait another day.
• Drainage is Non-Negotiable: Whether in the ground or a pot, begonias need soil that lets water move through quickly. If their roots sit in water, they can develop rot very quickly.
• Water the Base: Try to keep the leaves dry. Watering at the base of the plant helps prevent powdery mildew, a common fungus that looks like a dusting of flour on the leaves. For more growing tips, see How to Water Your Plants.

Feeding for Energy

Because we want these plants to grow back next year, we need them to build up a "savings account" of energy in their roots or tubers. A balanced, water-soluble fertilizer applied every two to three weeks during the growing season will provide the nutrients they need. Stop fertilizing in late summer (around August) to encourage the plant to start winding down for its winter rest.

"The secret to begonias that return year after year is a balance of patience and protection. By allowing the plant to signal its own dormancy in the fall and giving it a gentle head start in the spring, you can enjoy the same beautiful flowers for a decade or more."

Troubleshooting Common Regrowth Issues

If your begonias aren't growing back as vigorously as you hoped, it is usually due to one of three things: moisture, temperature, or timing.

My Tubers Didn't Sprout

If you've brought your tubers out of storage and nothing is happening after three weeks, check the temperature. Begonias are tropical and won't wake up if the room is too chilly. Try moving them to a warmer spot, such as on top of a refrigerator. Also, ensure you haven't planted them upside down! The "indented" or hollow side should always face up.

The Plant is Growing Back, but it's Very Thin

This is almost always a light issue. If the new growth is stretching toward the window and looks pale green, it needs more brightness. Move it to a sunnier window or use a simple grow light to give it the energy it needs to grow thick, sturdy stems.

Leaves are Falling Off Right After Moving Outside

This is often a sign of "environmental shock." If the change in temperature or light was too sudden, the plant may drop its leaves in protest. Don't worry—as long as the stems are still firm, the plant will usually grow a new set of leaves that are better adapted to the outdoor conditions. Keep the plant in the shade and be careful not to overwater while it recovers.

FAQ

Can I leave my begonias in the ground over winter?

Only if you live in a frost-free climate (Zone 9-11) or if you are growing the specific "hardy" variety, Begonia grandis. In most of the US, the freezing ground will destroy the root system or tuber, meaning the plant will not grow back in the spring. If you need help with zone timing, check the Hardiness Zone Map.

How long do begonia tubers last?

With proper care and winter storage, a begonia tuber can easily live for 5 to 10 years, and sometimes even longer. As the tuber gets older, it will grow larger and often produce more stems and flowers each season.

Do I need to prune my begonias before they grow back?

For wax or Rex begonias being kept as houseplants, a light pruning in autumn helps the plant manage the move indoors. For tuberous begonias, you don't need to prune; simply wait for the foliage to die back naturally and then remove the dry stems before storage. If you want more general care guidance, visit Garden Basics How To.

When is the best time to replant stored begonia tubers?

You should start them indoors about 6 to 8 weeks before your last frost date. They should only be moved to the garden once the soil has warmed up and the risk of frost has completely passed, which is usually around the same time you would plant tomatoes.

Conclusion

Begonias are some of the most rewarding plants in the garden, offering a variety of colors and textures that few other shade-loving plants can match. While many people view them as temporary, the reality is that they are hardy survivors when given the right winter protection. Whether you choose to store tubers in a cool basement or keep a wax begonia on a sunny windowsill, the effort you put in during the autumn pays off in a big way when spring returns.

At Longfield Gardens, we want to help you make the most of every plant in your yard. By understanding the simple needs of your begonias—well-drained soil, dappled light, and protection from the cold—you can create a garden that grows more beautiful with each passing year. If you have questions about what to order or how your plants will ship, review our Shipping Information and About Us pages.

• Identify your type: Know if you have tuberous, wax, or hardy begonias.
• Protect from frost: Move plants or tubers before the temperature drops below freezing.
• Practice patience: Give stored tubers plenty of warmth and light to wake them up in spring.
• Water wisely: Always check the soil moisture to keep roots and tubers healthy.

Keeping begonias from year to year is one of the easiest "wins" in the garden. It saves money, allows you to grow larger and more impressive specimens, and creates a wonderful sense of continuity in your landscape.

Ready to start your begonia journey? Explore our collection of premium tubers and find the perfect varieties to bring lasting color to your home and garden. For even more inspiration, browse Design Tips for Shady Gardens and reach out through Contact Us if you need help choosing the right plants.