Biennal Plant Seeds

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Biennial Plant Seeds for Long-Season Garden Colour Biennial plants follow a two-season life cycle, usually producing leaves and roots during their first year before flowering and setting seed in their second. This growth pattern makes them a valuable choice for gardeners who want to build layered, long-lasting borders, cottage gardens and naturalized planting areas. Growing biennials from seed rewards a little patience. Many varieties establish quietly in their first season, overwinter, and then produce impressive flowers the following year. Some may also self-seed and continue appearing in the garden over time. Browse the biennial plant seeds below, or explore our wider flower seed collection and perennial plant seeds for more long-term garden options. Biennial Plant Growing Information Growing Detail General Information Life Cycle Usually two growing seasons First Year Vegetative growth, root development and establishment Second Year Flowering, seed production and completion of the life cycle Sun Varies by species, though many prefer full sun to partial shade Sowing Method Direct sow outdoors or start in containers depending on the variety Best Uses Cottage gardens, perennial borders, naturalized areas, pollinator gardens and cut flowers What Is a Biennial Plant? A biennial plant normally completes its life cycle over two growing seasons. During the first year, it focuses primarily on producing roots, stems and leaves. After experiencing a cold period, the plant typically flowers during its second season, produces seed and then completes its life cycle. This makes biennials different from annuals, which grow and flower in a single season, and perennials, which can return for several years. For a deeper explanation of these plant life cycles, read our guide to annual vs. perennial plants for Canadian gardeners . Why Grow Biennial Flowers From Seed? Biennials are useful for creating continuity between annual flower beds and permanent perennial plantings. Once establ