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Call This Houseplant Rex – Begonia That Is

Begonia Rex

Begonia Rex

Ask the Expert:
Do you know the name of this house plant? Can you identify this house plant. I would like it’s name and any other information you may have on it. Thank you! Linda

Plant Expert Reply:

It is a little hard to tell from the picture but it looks as if you have a Rex Begonia. This herbaceous perennial is only hardy in zone 10 to 11 and therefore treated more as an annual or houseplant.  This houseplant needs high humidity and well-drained soil. You will need to be careful not to over water this plant.  If the roots remain soggy for too long, they will rot. You, also, need to fertilize it quite often during the growing season. Fertilizing should begin in spring and end in the fall.  I recommend a balanced fertilizer just slighlty higher in nitrogen that is water soluable every two weeks.  Rex Begonias need lots of bright filtered light. The optimum day time temperature is in the 70 degree range and the night temperature is in the 60 degree range.  Most normal household temperatures will be sufficient. 

Good Luck with your plant and keep me posted.


  1. This is actually not a rex begonia but one of the many B. bowerae types.

  2. I thought Begonia browerae leaves were fringed with hair thus the common name Eyelash begonia. But, I didn’t see the typical long hairs on the leaves. Sometimes it is hard to make an identification from a picture. Thanks for the alternative identification. At least we both agree that it is a rhizomatous begonia.

  3. richard lewis says:

    looks like begonia bowerae var. nigramarga.

  4. I think this might be a rex begonia but I’m not sure which one? Can you help with a name?

    Thank you!

    Attached Image: begonia1.jpg

  5. Hello Susan, I have looked high and low for an I.D. for you; unfortunately I’ve come up empty handed. It does appear to be some type Rex begonia hybrid. There are hundreds of varieties of these plants so an identification is not that easy. However, I have forwarded your picture to the American Begonia Society to see if they can help us solve this mystery. I will email you when I get a response.

  6. Where can you buy that plant?
    Thank you.

  7. Jeffrey Balch says:

    Hi Renee. You should be able to find a Begonia Rex at your local nursery or greenhouse. If they don’t have one in stock, they should be able to help you find one!

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