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Metrolina Greenhouses runs a large field trial at its location in Huntersville, NC.
The zoo opened a new off-grounds trial garden that allowed trialing of more varieties, as well as being able to plant and evaluate different petunia varieties in garden beds.
A layout change in 2021 allowed cultivars of the same genus to be trialed side-by-side for easier comparison.
It was a great year for Mast Young Plants trials, with ideal weather and great plant quality right up to the end of the season.
A wetter-than-normal spring and an unusually hot summer put the varieties in the Colorado State University to the test.