Return to the Gesneriad Forum | Post a Follow-Up

Gloxinia 'Evita' - overwintering rhizomes

Posted by eric_oh 6a (My Page) on
Tue, Sep 29, 09 at 18:49

I grew this plant in a subtropical border this year, and just harvested about 25 rhizomes, ranging from 2-10 mm in length.

Do these store well in vermiculite moistened with a few drops of water over the winter, or do I need to maintain viable rhizomes some other way?

Follow-Up Postings:

RE: Gloxinia 'Evita' - overwintering rhizomes

Eric -

I am green from envy. What a cool plant! I saw it at the Gesneriad convention - and loved it.

I think your method is the best. I use a little sprinkle of Captan to keep fungus at bay and keep and eye on rhizomes so they won't go dry.


RE: Gloxinia 'Evita' - overwintering rhizomes

Here's the advice I gave to the same question when it was posted in the Tropicalesque forum:

Gloxinia nematanthodes is now Seemannia nematanthodes. This is a great species that I've grown for several years, both in the ground and in containers. It has a very long blooming period and has held up well to summer heat and humidity. They do best with some direct sun during the day, but appreciate mid-day shade.

I keep Seemannia (and Achimenes) rhizomes bone-dry over the winter, usually stored in a small amount of dry potting mix. As long as you keep them cool and dry they will stay dormant for several months. If you give them any moisture at all, you risk (a) rot or mold and (b) premature sprouting. They will eventually start sprouting regardless of what you do, but even then they will be okay for a few more weeks. I usually start them under lights indoors in early spring and put them out once the weather has warmed up a bit (usually early May).

Here are a couple of photos of S. nematanthodes growing in a couple of different places:


Seemannia nematanthodes

RE: Gloxinia 'Evita' - overwintering rhizomes

John - you break my heart. Just for this it is worth considering moving to DC.

In our very dry climate - I keep an eye on the baggies with rhizomes and add 1-2 drops of water every so often - otherwise they dry to crisp. Achimenes though keeps the best in last year pots.

On the other side - if something starts sending shoots - I just pot it - no way I can grow gesneriads outside anyway - so I do not need to time them to the spring.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Gesneriad Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here