Posted: 19/05/2014 at 10:49
hello i plant 4 plate sized dalhias from the range back in early april and there is no sign of any growth should i leave it for another month before i check the tuber to see if its rotted or not
Where did you plant them? I need to start mine off in the greenhouse in pots - most are not a good few feet tall now. I would never start them directly outside in the borders, as they take a long time for the right temperatures to develop for them to grow well then flower.
You can tell when they have rotted as the brown rhizomes will turn to mush or be hollow.