Research & Trials Overview

At Green Bay Botanical Garden we not only evaluate all of our new plants throughout the Garden, but we also evaluate some specific trial plants all season long. As the Garden grows, we have become more involved with the horticultural science side of gardening. The trialing we perform allows our visitors and members to see new plants before they are released – to get them on their purchase list – and to ask local garden centers to supply them. Our trialing allows local garden centers and growers to see the plants perform in a garden setting which may help determine if they are worthy of adding to their garden center’s inventory.

In 2022, the Garden was involved in two major trialing efforts:

All-America Selections (AAS) Trials
American Rose Trial for Sustainability or A.R.T.S.®

Annual & Perennial Trials

All-America Selections (AAS) Trials

Green Bay Botanical Garden is one of about 80 trial gardens in the United States that compares breeder’s entry plants against the most commonly grown industry standards of that particular plant. The entry plants are compared and rated against the comparison plants throughout the trial, and then a score sheet is sent into AAS at the end of the evaluation period. Our results are tabulated along with those from the other trial gardens to determine if the entry plant is worthy of an AAS designation. Look for AAS plants and seeds when shopping this season to get proven performers into your garden.

The All-America Selections Trials and display beds can be seen behind the Magnolia Grove (Schneider Family Grand Garden).

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Rose Trials

American Rose Trial for Sustainability or A.R.T.S.®

Trialing Roses in Titletown and Brewer Country: How the American Rose Trials for Sustainability® Trialing Partnership Sprouted Between Two Wisconsin Botanical Gardens

This trial includes 20 shrub roses in 3 replicated blocks, equaling 60 plants total, which were planted and watered for a few weeks to establish them. After that, the shrub roses received no supplemental water, no fertilizer, no pesticide treatment, and no winter protection. The idea is to find beautiful flowering roses that require very minimal care and are not susceptible to insects and disease. These roses are trialed for two years (after which a new group is planted) and evaluated monthly by our horticulture team. The A.R.T.S. ® trial is located to the east of the Magnolia Grove behind the Matthew Schmidt Garden.

Green Bay Botanical Garden is one of 23 national sites in the A.R.T.S. ® program. Our data is compiled with other test sites to determine the best sustainable roses for our climate zone (Dfb Humid Continental [Cool Summer] Climate). The Look for A.R.T.S. ® winning roses in garden centers in the upcoming years.

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