Plant Reference - Perennial Flower Gardening https://www.plantref.org/care/category/perennial-flower-gardening Plant care guides about Perennial Flower Gardening en-us Tue, 25 Aug 2026 04:31:56 GMT https://www.plantref.org/images/plantref-logo-2026.png Plant Reference - Perennial Flower Gardening https://www.plantref.org/care/category/perennial-flower-gardening <![CDATA[When to Plant Perennials: Season-by-Season Timing]]> https://www.plantref.org/care/when-to-plant-perennials https://www.plantref.org/care/when-to-plant-perennials Tue, 25 Aug 2026 02:00:16 GMT Tue, 25 Aug 2026 02:00:16 GMT