Browse resources Displaying 1 - 3 of 3 resources Credit: adynue - stock.adobe.com (Cropped from original) Caring for roses and dahlias in Oregon Learn about planting, pruning and landscaping with these beautiful flowers. Feb 2024 | Collection Credit: Valerii Honcharuk - stock.adobe.com (Cropped from original) When should I prune my roses? Q: I live in the Willamette Valley near Salem. Old timers say Presidents Day is the time to prune roses. True?A: View answer | View all featured questions Credit: Jennifer Alexander (Cropped from original) General care for hydrangeas Look to this hydrangea how-to for advice on soil, water, pruning and more. Learn a simple pH trick that will turn blooms from pink to blue. Kristin VanHoose | Jun 2018 | Article Peer reviewed (Gray level)