"Crater Lake National Park's limited growing season means blooms have a short window, roughly July to October. But those months alone make Crater Lake one of the best national parks for wildflower views. The flora stretches from low-elevation forests up to the towering Mount Scott stratovolcano, the park's tallest point. See the vibrant hues via Lady of the Woods Trail, Annie Creek Canyon Trail, and Discovery Point Trail." - Travel + Leisure Editors