Do Begonias Grow Back Every Year?
The short answer is yes—most begonias can grow back every year, but only if you give them the right care and growing conditions. Whether your begonia returns depends on the type you have, your climate, and how you handle it when cold weather arrives. Understanding the difference between perennial and tender begonias is the key to keeping them alive for multiple seasons.
Do All Begonias Come Back Every Year?
No, not all begonias come back on their own. Begonias are tropical and subtropical plants, which means they cannot survive freezing temperatures. In areas where winter temperatures drop below 50°F (10°C), most begonias will die if left outside. However, in warm climates like USDA zones 9 through 11, many begonias act as true perennials and return year after year without any extra effort.
The confusion happens because begonias are often sold as annuals in garden centers, even though they are technically tender perennials. With a little planning, almost any begonia can be kept alive through winter and replanted the next spring.
Which Types of Begonias Are Perennial?
The answer depends on the begonia species and your hardiness zone. Some types are naturally more resilient than others. Here is a quick breakdown of the most common begonia types and their perennial potential.
| Begonia Type | Perennial in Warm Climates | Can Overwinter Indoors | Common Growing Style |
|---|---|---|---|
| Tuberous begonias | Yes, in zones 9–11 | Yes, store tubers | Hanging baskets, shade gardens |
| Wax begonias | Yes, in zones 10–11 | Yes, bring pots inside | Bedding plants, borders |
| Rex begonias | Yes, in zones 10–11 | Yes, as houseplants | Indoor foliage plants |
| Angel wing begonias | Yes, in zones 10–11 | Yes, as houseplants | Indoor or patio containers |
| Rhizomatous begonias | Yes, in zones 9–11 | Yes, as houseplants | Indoor foliage plants |
Tuberous begonias are the most common type that gardeners save from year to year. They grow from underground tubers that can be dug up, stored, and replanted. Wax begonias are often treated as annuals in cold climates, but they are actually tender perennials that can survive indoors with enough light. Rex begonias and angel wing begonias are usually grown as houseplants and will live for years if kept in the right conditions.
How Do You Overwinter Tuberous Begonias?
Overwintering tuberous begonias is straightforward and has a high success rate. Follow these steps to save your tubers for next season.
- Stop watering when the first frost threatens. Let the soil dry out naturally. This signals the plant to enter dormancy.
- Cut back the foliage after it has yellowed or after a light frost has killed the leaves. Leave about 2 inches of stem attached to the tuber.
- Dig up the tubers carefully. Brush off excess soil but do not wash them. Washing can introduce moisture that leads to rot.
- Dry the tubers in a warm, airy spot for one to two weeks. Place them on a tray or screen so air circulates around them.
- Store the tubers in a box or paper bag filled with dry peat moss, vermiculite, or wood shavings. Keep them in a cool, dark place where the temperature stays between 40°F and 50°F (4°C–10°C). A basement or garage works well.
- Check occasionally for signs of rot or shriveling. Remove any tubers that feel soft or mushy.
- Replant in spring after the last frost date. Start tubers indoors in pots about six to eight weeks before transplanting outside.
Common mistake: storing tubers in a plastic bag or in a location that is too humid. Moisture is the main cause of tuber rot during storage.
Can Wax Begonias Come Back Every Year?
Yes, wax begonias can come back every year, but they need different treatment than tuberous types. Wax begonias have fibrous roots instead of tubers, so you cannot dig and store them the same way. Instead, you have two good options.
Option 1: Bring the whole pot indoors. Before the first frost, move your wax begonia container into a bright room. Place it near an east- or west-facing window. Water sparingly through winter, only when the top inch of soil feels dry. The plant may drop some leaves and look leggy, but it will bounce back in spring after you prune it and move it back outside.
Option 2: Take cuttings. In late summer, cut 3- to 4-inch stem tips from your healthiest wax begonia. Remove the lower leaves and place the cuttings in a glass of water or in damp potting soil. Roots usually appear within two to four weeks. Grow the new plants indoors through winter, then transplant them outside after the last frost. This method gives you fresh, compact plants for spring.
What About Rex Begonias and Angel Wing Begonias?
Rex begonias and angel wing begonias are grown primarily for their colorful leaves and graceful stems rather than their flowers. These types are easy to keep alive year after year because they adapt well to indoor life. In warm climates, they can stay outside year-round. In cold climates, treat them as houseplants.
Keep them in bright, indirect light. Direct sun can scorch their leaves, especially for rex begonias. Water when the top inch of soil feels dry, and reduce watering in winter when growth slows. Maintain humidity by placing the pot on a pebble tray or using a small humidifier. With these simple steps, these begonias can live for many years.
Do Begonias Come Back If You Leave Them in the Ground Over Winter?
Only if you live in a frost-free climate. In USDA zones 9 through 11, most begonias can survive winter outdoors. The ground does not freeze, and the plants simply go dormant or keep growing slowly. In zones 8 and colder, leaving begonias in the ground over winter almost always kills them. Even a light frost damages the soft stems and leaves, and a hard freeze destroys the roots or tubers.
If you are unsure about your zone, check your local frost dates. Any area where temperatures drop below 40°F (5°C) for more than a few hours is too cold for begonias to survive in the ground.
Common Mistakes When Trying to Regrow Begonias Year After Year
Many gardeners accidentally kill their begonias while trying to save them. Avoid these common pitfalls.
- Digging up tubers too early. Wait until the foliage has naturally yellowed or been hit by a light frost. Digging too early means the tuber has not stored enough energy for next season.
- Storing tubers in a wet environment. Damp storage causes rot. Always dry tubers thoroughly before storing, and use dry storage material.
- Watering overwintering begonias indoors. Most begonias need very little water during winter dormancy. Overwatering leads to fungal diseases and root rot.
- Not providing enough light indoors. Begonias kept as houseplants through winter need bright, indirect light. A south-facing window or a plant grow light helps them stay healthy.
- Cutting foliage too low. When cutting back tuberous begonias, leave a short stub. Cutting into the tuber itself can introduce bacteria and cause rot.
How to Tell If Your Begonia Tubers Are Still Alive in Spring
In early spring, check your stored tubers before planting. A healthy tuber feels firm and slightly heavy for its size. The skin should be dry and intact. Look for small pink or white buds starting to emerge from the top or sides. That is a good sign.
Discard any tuber that feels soft, spongy, or mushy. Tubers that have shriveled severely may still sprout if you soak them in room-temperature water for a few hours before planting. If a tuber has visible mold or smells sour, throw it away. Do not plant damaged tubers because they will likely rot in the soil.
Can You Grow Begonias from Seeds or Cuttings Instead?
Yes, you can start new begonias from seeds or cuttings, but these methods are less reliable for getting the same plant back each year. Seeds produce plants that may look different from the parent, especially with hybrid begonias. Cuttings are a better way to clone your favorite plant.
For cuttings, use a sharp, clean pair of pruning shears to take a 3- to 4-inch stem cutting. Remove the lower leaves and dip the cut end in rooting hormone powder for faster results. Place the cutting in a small pot filled with moist potting soil for begonias or in a glass of water. Roots should appear in two to four weeks. Once rooted, transplant to a larger pot and grow as normal.
What Is the Best Time to Plant Begonias for Yearly Growth?
The best time to plant begonias outside is after the last spring frost when nighttime temperatures stay above 50°F (10°C). For tuberous begonias, start them indoors six to eight weeks before the last frost. This gives them a head start so they bloom earlier and store more energy for next season.
Plant tubers with the indented side facing up and the rounded side down. Cover them with about an inch of soil. Water lightly and keep the pot in a warm spot around 70°F (21°C). Once shoots appear and the weather warms, you can move them outside.
If you are replanting stored tubers from last year, inspect them first as described above. Use fresh begonia tubers if some did not survive storage.
How to Decide Whether Your Begonia Will Come Back Next Year
The best way to know if your begonia will return is to identify the type and check your climate. If you live in a warm region with mild winters