when to pronounce begonia tubers dead

crazyforcorelli(z5 utah)March 20, 2005

I'm having trouble waking up five begonia tubers, and I'm wondering if I should just give up and pronounce them dead.

I overwintered three of the tubers, and these are all quite small -- about the size of a quarter; the other two are large tubers (4 inches or so) that were purchased only a few months ago (from Hirts.com). Two of the small tubers are the "On-top" variety, but I don't know what the third is; the large tubers are a Skagum and a Daffodil-type.

I've had all of these in my 66-degree laundry room for 3 weeks, and they haven't broken dormancy. I even gave them a hot-water bath about a week ago(following the directions given on the Canadian Begonia Society's webpage). They're being stored in individual bags in a cardboard box. All of the tubers are firm; there are no mushy spots.

Am I doing anything wrong? Do the tubers need light to break dormancy? Is there any way to determine if they're dead? Or should I just stop being an impatient newbie?

Thank you for reporting this comment. Undo
kdjoergensen

Try to place them on top of a pot of damp, warm peatmoss sphagnum (e.g. with bottom heat, etc). Place the tubers up-side-down (the hollow side down, rounded side up). Leave them at 75F for 2-3 weeks, and they should sprout. check every few days. once they sprout, turn them right side up (hollow side up) and plant them as normal.

    Bookmark   March 20, 2005 at 9:28PM
Thank you for reporting this comment. Undo
crazyforcorelli(z5 utah)

I'll get right on it! Thanks!

    Bookmark   March 20, 2005 at 10:23PM
Sign Up to comment
More Discussions
Eyelash begonia
I was given a mini eyelash begonia yesterday. I have...
Winnie12
Care instruction for a Dragon Wing Begonia
Hi I just bought a Dragon Wing Begonia at the grocery...
tkhooper
New to Begonias and wondering what I have
I was at the Philadelphia Flower show and couldn't...
savannaicus
Anyone have b.grandis bulbils for swap or SASE?
I would very much like to try these if anyone has a...
rredbbeard
Begonias in Miracle Gro Orchis mix?
So I was bored today and decided to replace 2 of my...
Nick Robinson
Sponsored Products
Hook, Line, and Sinker Shelf
| Dot & Bo
Bolla Bronze One-Light Bath Fixture with Amber Matte Glass
$153.00 | Bellacor
Eva Zeisel Candlestick Set
Design Within Reach
Flip Folding Trolley by Kartell
$1,100.00 | Lumens
Set of Four Personalized Contemporary Wine Glasses
Grandin Road
Global Views Angle Cut Stainless Steel Wall Cube - 9.91580
$197.50 | Hayneedle
© 2015 Houzz Inc. Houzz® The new way to design your home™