Dahlia tuber looking odd
I have just taken my few dahlias out of their terracotta pots ready to go into winter storage in the garage. One of the clumps looks very strange. The 'shoulders' - from which the stems grew, have a very granular surface and are creamy in colour. Gentle pressure with a fingernail removes small lumps of the stuff. All the tubers lower down look and feel perfect.
I would have posted a pic, but my phone's camera isn't working