I participated in a project of the American Dahlia Society to research  dahlia viruses with help from an endowment from the Scheetz Chuey Charitable Foundation and professor Hanu Pappu at Washington State University. Some of the results of the plants tested are noted in the Virus Testing column.  The samples were taken from one plant, not every plant of a given variety. 

I am taking wish lists for 2020. Please see the Ordering Info page for wish list details.

If you wish to view this list in full screen mode, scroll to the bottom of the page and click on the full screen icon (four arrows pointing outward). A new window will appear with a larger version of this chart.