Trial Gardens 2020

Tahoma Trial Garden 2020

Tahoma Trial Garden 2020
Photo by Bob Schroeder


The American Dahlia Society sponsors public trial gardens at locations across North America.  Another group of excellent new cultivars were evaluated in our ADS Trial Gardens in 2020. 

The results table (coming soon) shows the scores for each cultivar in each of the trial gardens.  

You may also see photos from some trial gardens by visiting our photo gallery.

Trial Garden Entry Forms for 2020 are available in two formats:  pdf   docx


Report from the Trial Garden Co-Chairs

(To be added)


* The Derrill W. Hart medal

Awarded to the cultivar that has the highest average trial garden score in the Trial Gardens located across the United States and Canada as an AA or A (Classes 0001-1515); B (Classes 2001-2515); BB (Classes 3001-3515); M (Classes 4001-4515); Ball, MiniatureBall, or Pompon (Classes 6001- 6215); ST(7001-7515) or NX(7601-7615); and Waterlily (7301-7315). The highest 3 scores (from individual Trial Gardens) are used to determine the highest average. In case of ties, duplicate awards will be awarded.

** The Evie Gullickson medal

Awarded to the cultivar that has the highest average Seedling Bench Evaluation score and the highest average Trial Garden score as a PE, AN, NO, CO, O, S, MS (8001-9715).