Which plant is best for all seasons outdoor?
Evergreen flowering perennials will keep their green foliage all year, long after the blooming season is over. Many herbs are particularly known for being great practical flowering plants with evergreen foliage, such as lavender, rosemary, and salvia, among others. Perennials. Perennials return year after year, making them a long-term investment for continuous blooms. They often require less maintenance once established and help create structure in the garden. Many perennials bloom at different times, which will offer a steady showcase of flowers throughout the seasons.