The Garden is open 9 am-8 pm daily (except Thursdays, 9 am-4:30 pm) through August 31. Garden grounds are open, but access to buildings is limited. See details below.
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.
During the summer of 2018, the Garden was involved in four major trialing efforts:
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. This year 11 seed propagated and 3 vegetatively propagated entries will be evaluated against 26 comparisons for a total of 40 different plant varieties. 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 in our Partnership Garden (below the Stumpf Belvedere) and in the Children’s Gardening Patch (near the Stumpf Hobbit House).Learn More
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 11 national sites in the A.R.T.S. ® program. The Look for A.R.T.S. ® winning roses in garden centers in the upcoming years.Learn More
This trial includes 20 hybrid tea and floribunda roses in 4 replicated blocks, equaling 80 plants total. These roses are treated similarly to the A.R.T.S. ® roses except they get mulched for winter protection. These roses are trialed for three years (after which a new group is planted) and evaluated monthly by our horticulture team. The trial’s goal is to provide homeowners and retailers with trouble-free hybrid tea and floribunda roses that look great with minimal care. The Earth-Kind® rose trial is located to the east of the Magnolia Grove behind the Matthew Schmidt Garden. Green Bay Botanical Garden is the only northern test site for this trial in the country.Learn More