Overwintering dahlia tubers

J. Denys Bourque jdbourq@yahoo.co.uk
Tue, 23 Oct 2012 04:21:47 PDT

Dear Bulb Enthusiasts,
I thank all who provided advice on overwintering dahlia tubers. I 
carefully dug the plant out [this was easy as I had planted it in a 6 
in. pot with plenty holes in the bottom and buried the pot to the rim]; 
cut the stem at 6 in.; let in dry for several days in my shed; and now 
have it inside to further dry before storing it for the winter as 

Only, the elongated roots radiating from the crown are a bit soft or spongy, the same for the roundish bulges below it [I don't know how the latter are called].  

Is this normal, or am I doing anything incorrectly? 

As further info, we had a good frost [-2 C ; 29 F] - not a freeze - two 
days before I uplifted the plant, but the ground did not freeze.

I'd be grateful for any advice.


J. Denys Bourque
Saint-Jacques, NB   CANADA 
US Zone 4 ; Canadian Zone 3a

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