Biennial Seeds

Explore a fantastic selection of biennial seeds at Johnsons – perfect for adding late spring and early summer colour to your garden. From the eye-catching spires of foxglove seeds to fragrant Sweet Williams, biennials are some of the most beloved of all British flowers. These hardy beauties spend their first year growing lush foliage and sturdy roots, bursting into bloom the following season.

Biennial flower seeds are incredibly satisfying to grow – they’ll reward your patience with the most spectacular, long-lasting flowers, many of which make gorgeous additions to indoor displays and bouquets. Browse our full range of biennials below.

17 products

Teasel Seeds

£3.79

Sweet Rocket Mixed Seeds

£3.79

Sweet William Single Mixed Seeds

£2.59

Wallflower Blood Red Seeds

£3.79

Cynoglossum Mystery Rose Seeds

£3.79

Foxglove Alba Seeds

£3.49

Stock Excelsior Mixed Seeds

£3.79

Clary Blue Denim Seeds

£4.89

Foxglove Seeds

£3.79

Foxglove Apricot Delight Seeds

£3.79

Honesty Purple and White Seeds

£3.49

Canterbury Bells Cottage Mix Seeds

£3.49

Wallflower Scarlet Bedder Seeds

£3.49

Sweet William Indian Carpet Mix Seeds

£3.49

Canterbury Bells Cup & Saucer Mix Seeds

£2.59

Forget Me Not Indigo Seeds

£3.49

Wallflower Single Mix Seeds

£3.49

Explore Our Biennial Flower Seeds

Our hardy biennial seeds will reward you with a magnificent floral show in their second year after sowing. Flowering from May to July, biennials are invaluable in beds and borders, where they bring much-needed colour after spring bulbs have faded – but before most perennials begin to bloom. Choose from many beautiful varieties, including wallflowers, forget-me-nots, dianthuses, and more.

Buy Hardy Biennial Seeds Online

Brighten your beds and borders or grow a glorious cut flower garden with Johnsons’ high-quality flower seeds. Whether you choose biennial seeds, perennials or annual seeds, you’ll enjoy unbeatable germination rates, strong growth, and beautiful blooms. Order today for fast UK delivery – 100% satisfaction guaranteed!