Claire WhitakerBy Claire Whitaker

Updated November 2026

Are begonia plants perennials? Most begonias are tender perennials, meaning they live for more than two years but cannot survive freezing temperatures. Many common types, including wax begonias and tuberous begonias, behave like annuals in colder climates. Whether a begonia comes back depends on its species, your USDA hardiness zone, and how you handle it over winter.

Why Begonias Are Considered Tender Perennials

A perennial is a plant that lives three or more seasons. By that definition, begonias qualify. Their stems, roots, or tubers can persist for years under the right conditions. The catch is that most begonias come from tropical and subtropical regions, including parts of South America, Africa, and Asia. They have no built-in defense against frost, so a hard freeze kills the top growth, and in many cases the entire plant.

Shopping for one? See our guide: Perennials for Zone 6b: 10 Best Picks for Every Garden (2026).

Gardeners sometimes call these plants “tender perennials” to separate them from hardy perennials like hostas or daylilies, which can handle winter ground temperatures well below freezing. The distinction matters most when you are deciding whether to plant a begonia outdoors or keep it in a container you can bring inside.

The Main Factors That Decide Whether a Begonia Returns

Three things determine whether a begonia behaves as a perennial in your garden.

  • Species and type. Rhizomatous begonias, such as Rex begonias, and cane-type begonias can live for years indoors or in mild climates. Fibrous-rooted wax begonias (Begonia semperflorens) are often grown as annuals, though they can persist in frost-free areas. Tuberous begonias store energy in a tuber and can regrow from it the following spring if the tuber is protected from freezing.
  • Hardiness zone. Begonias generally thrive in USDA zones 9 through 11 as perennials outdoors. In zones 7 and 8, some tuberous or cane types survive with mulch or lifting. In zone 6 and colder, most begonias need to be treated as annuals or overwintered indoors.
  • Winter conditions. Even in mild regions, wet, cold soil can rot tubers and rhizomes. Good drainage matters as much as temperature.

How to Keep Begonias Alive Through Winter

If you want your begonias to return, the approach depends on the type you are growing. The general principle is to protect the living tissue from cold and excess moisture.

  1. Identify your type. Check whether the plant has fibrous roots, rhizomes, or a tuber. A quick look at the base of the plant usually answers this.
  2. Bring tender types indoors before frost. Cane and rex begonias can be moved into a bright window before nighttime temperatures fall below about 50°F. Acclimate them gradually over a week to avoid shock.
  3. Lift tuberous begonias in fall. After the first light frost blackens the foliage, gently dig up the tubers. Brush off the soil and let them dry for a few days in a shaded, airy spot.
  4. Store tubers properly. Pack them in dry peat, vermiculite, or wood shavings. Keep them in a cool place, roughly 40 to 50°F, away from freezing. Check monthly and discard any that have soft spots.
  5. Restart in spring. Pot tubers in barely moist medium around late winter, placing the hollow side or sprouts facing up, and move them to warmth and bright indirect light.
  6. Reduce watering in winter. Indoor begonias need less water when growth slows. Overwatering is the most common cause of rot during the cold months.

Practical Tips for Growing Begonias as Perennials

  • Plant in well-draining soil amended with perlite or bark. Soggy roots are a frequent cause of decline.
  • Give most begonias bright, indirect light. Too much direct sun scorches leaves, while too little leads to leggy growth and few flowers.
  • Mulch heavily in zones 7 and 8 before the first hard freeze to insulate the root zone.
  • Label your tubers or pots so you know which types are dormant and which are still active during winter.
  • Take stem cuttings in late summer as a backup. Begonia cuttings root readily in water or moist medium and give you insurance if the parent plant fails.

What We’d Use

For a simple setup that supports overwintering, a good quality peat-free potting mix with added perlite drains well and suits most begonia types. Owners often report better results with a small grow light during short winter days, which helps indoor begonias keep their foliage.

View on Amazon improves drainage in heavy mixes and reduces the risk of root rot during dormancy.

View on Amazon is useful for packing dried tubers because it holds a small amount of moisture without staying wet.

Can begonias survive a light frost?

Most begonias cannot. Even a light frost can blacken leaves and stems. Some hardier cane types may recover from brief light frost if the roots are protected, but it is safer to cover or move them.

How long do begonias live?

With good care, rhizomatous and cane begonias can live for many years, sometimes a decade or more indoors. Wax begonias grown outdoors in cold climates usually last only one season.

Do begonias come back every year?

Only in frost-free or mild climates, or when tubers and rhizomes are stored and replanted correctly. In colder zones, most begonias need to be replaced or overwintered.

Why did my begonia die back in winter?

Cold temperatures, wet soil, or both are the usual causes. Check whether the roots are soft before assuming the plant is dead. Healthy tissue is firm and pale inside, while rotted tissue is dark and mushy.

Can I grow begonias as houseplants year-round?

Yes. Many types, especially rex and cane begonias, adapt well to indoor conditions. Provide bright, indirect light, good airflow, and humidity around 50 percent if possible. Consult a local extension service if you notice persistent problems.

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Claire Whitaker

About Claire Whitaker

Claire Whitaker is part of our editorial team and reviews and edits our plant care Q&A guides, checking product details against manufacturer specifications and owner feedback.