Rhododendron Sunday/Mother’s Day at Shore Acres State Park – May 14, 2023 - Treat mom and family to a delightful day at Shore Acres south of Charleston, Oregon. In the garden, Park Rangers will have a display of cut blooms and will be available to answer your questions about rhodies. The park is open from 8 am to dusk and the Garden House will be open from 11am-3 pm with refreshments provided by the Friends of Shore Acres.