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Home / Seasonal Gardening / Overwintering Plants / Overwintering Begonias: How To Store Tuberous Begonias

Overwintering Begonias: How To Store Tuberous Begonias

By Amy Andrychowicz | 6 Comments

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Some types of begonia plants have tubers (bulbs) which can easily be brought indoors in the fall and stored for winter. Whether you’re growing tuberous begonias in your gardens or in pots, they can be overwintered and grown again next summer. Follow these simple step-by-step instructions for overwintering begonias, and get tips for winter care too.

Overwintering begonias is super easy, especially when they’re tuberous begonias. Storing begonias over winter is a great way to keep your favorite varieties every year, and save some money too. In this post, I’ll show you how to store begonia tubers.

How To Overwinter Tuberous Begonias Indoors

Begonias are very popular and commonly used in annual pots outside during the summer. They’re also great to add summer-long color to your shade gardens.

But did you know that some begonias have tubers which can be easily overwintered?

Not only will you get to enjoy the same beautiful begonia plants year after year, but it will save you the cost of buying new one each year. I discovered this fact quite by accident several years ago.

Bringing Tuberous Begonias Inside For Winter

Just for fun, I brought several of my annual pots into the house in the fall so I could enjoy the blooms for a few more weeks after frost.

Related Post: How To Overwinter Plants: The Complete Guide

Overwintering tuberous begonias in pots

Tuberous begonias can be overwintered in pots

I had planted a spider plant as a filler in one of the pots that also contained a tuberous begonia.

After the begonia dropped all of its foliage, I didn’t have the heart to throw away the spider plant so I decided to keep it as a houseplant over the winter.

Tuberous begonia white flowers

Tuberous begonia with white flowers

During the long winter, I had forgotten all about the tuberous begonia in the pot. To my surprise the next spring it started to sprout new growth.

I was thrilled! It grew just as beautifully that summer as it had the summer before.

Since then, I have added a few more tuberous begonias to my collection. The rose like blooms on these first few beauties (pictures above) are wonderful to bring color to the shade garden under my tree. Begonias bloom all summer long and are very easy to care for too.

Weeping orange begonia tubers plant

This weeping orange begonia is tuberous

The orange weeping one in this picture is three years old and I have never taken it out of the pot it currently lives in. I get so many compliments on this one, it’s definitely worth keeping.

Overwintering tuberous begonias is easy, basically all I do is keep the pots in an area where they won’t freeze during the winter and forget about them until spring.

Not all begonias have tubers though, so make sure you read the tag before you give this a try. If you discover your begonia doesn’t have tubers, you can overwinter it as a houseplant instead. Read this post to learn how to grow begonias.

Tips For Overwintering Begonias

  • If your tuberous begonias are planted in your garden, you can dig up the tubers after frost has killed the foliage and store them over winter. Store dahlia bulbs in a cardboard box filled with peat moss, saw dust, coco coir or wood chips (pet bedding material works great). Or you could use a mix of perlite and vermiculite for storing begonia tubers. Learn all about storing bulbs for winter here.
  • If your tuberous begonia is in a pot, you can bring it inside before frost. Once you bring the plant inside, keep the soil on the dry side and it will slowly start to go dormant by dropping all of it’s flowers, leaves and stems. Once all of the stems and foliage have dropped off, stop watering it.
  • If you prefer, you can leave potted begonias outside and let frost kill the foliage. This will force the plant to go dormant quicker. Once the foliage is dead, cut off all the stems and bring pot indoors for the winter.
Red flowers on mature tuberous begonia

Red flowers on mature tuberous begonia

  • Store potted begonias in a cool dark room, or a room that gets low light. Water sparingly (or not at all) until spring. Do not over water though, or the tubers could rot!
  • The tuber may continue to send out new growth during the winter, but this growth will end up being spindly and weak. Cut off any winter growth before placing the plant back outside.
  • In the spring, move the pot into a bright location outside and begin watering it. You can add fertilizer if desired (it’s hit of miss for me). This is the time to repot the plant if it’s root bound. Here’s more information about bringing plants out of dormancy.

Overwintering begonias is easy, and it’s a great way to save your favorite varieties every year. And now that you know how to store tuberous begonias, you can start a collection!

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More Posts About Overwintering Plants

  • How To Overwinter Coleus Plants Indoors
  • How To Overwinter Brugmansia Plants Indoors
  • How To Overwinter Sweet Potato Vines Indoors
  • Overwintering Dahlias: How To Store Dahlia Tubers
  • How To Overwinter Caladium Bulbs

Share your tips for overwintering begonias, or for how to store begonia tubers in the comments below.


Some types of begonia plants have tubers (bulbs) which can easily be brought indoors in the fall and stored for winter. Whether you’re growing tuberous begonias in your gardens or in pots, they can be overwintered and grown again next summer. Follow these simple step-by-step instructions for overwintering begonias, and get tips for winter care too.

About Amy Andrychowicz

I live and garden in Minneapolis, MN (zone 4b). My green thumb comes from my parents, and I've been gardening most of my life. I’m a passionate gardener who loves growing everything from vegetables, herbs, and flowers to succulents, tropicals, and houseplants - you name, I've grown it! Read More...

Comments

  1. karen clay says

    September 21, 2019 at 1:37 am

    My begonias are in a big planter outside. Do I let the foliage fall off and then repot to a smaller pot and bring them in? Or could I mulch over them real well (I’m in Seattle)? They’re located out of the weather.

    Reply
    • Amy Andrychowicz says

      September 23, 2019 at 1:14 pm

      If you can’t bring the whole pot in, then you can lift the begonia tubers, and store them as described in the “Tips For Overwintering Begonias” section above. Unfortunately, I don’t think begonias would survive the winter outside in Seattle. They are only hardy in zones 10 or above.

      Reply
  2. Christine says

    January 8, 2019 at 9:11 am

    Hi, thanks so much for this great article! I’m about to order some begonia tubers and I’m a bit nervous but excited because I love them. I live in zone 8, do you think they’ll be ok in my garage overwinter? It gets to maybe the 20s in there, maybe occasionally lower.

    Reply
    • Amy Andrychowicz says

      January 15, 2019 at 10:42 am

      How fun, I love buying new plants!! I would not recommend overwintering your tuberous begonias in your garage if it gets that cold. You never want to allow begonias to get below freezing. If the tubers freeze, it will kill them.

      Reply
  3. Carol Giacomin says

    August 5, 2018 at 6:20 pm

    Is this just for tuberous begonias? I have a Rex begonia and a beautiful big leaf begonia that I would like to try to overwinter. Thank you for your help.

    Reply
    • Amy Andrychowicz says

      August 7, 2018 at 9:22 am

      The instructions in this post are just for keeping tuberous begonias, yes. You can overwinter non-tuberous begonias as houseplants. Here’s a post about caring for begonias indoors.

      Reply

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