The Whetstone Park of Roses September 3, 2015June 5, 2021 | Sarah Doyle The Whetstone Park of Roses showcases 11,000 roses, but also has a Heritage Garden, Earth-Kind Rose Garden, Herb Garden, and a Perennial Garden. The park is easily accessible by the #2 COTA bus. Get off at the Glenmont Ave. stop and walk west. Visit website.