Rose Trials

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

This trial includes 15 shrub roses in 4 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. The roses are evaluated monthly by our horticulture team. The Garden is one of 11 national sites in the A.R.T.S.® program. Roses are trialed for two years, after which a new group is planted. Look for the trial site next summer, and look for A.R.TS. ® winning roses in garden centers in the upcoming years.

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Earth-Kind® Rose Trial

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 will get mulched for winter protection. This year the plants were simply established. Data collection will begin next year and continue for three years total. 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 Garden is the only northern test site for this trial in the country.

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