Biennials are the wonderful plants that fill the gap between the last of the flowering bulbs and the first flush of hardy annuals and perennials in the garden. Favorites include Sweet William, Foxglove, Canterbury Bells, and Lunaria (commonly known as Money Plant).
I have two varieties of biennials growing in my cutting garden - they didn't bloom last year but had good growth and looked like very healthy plants. This year they are almost ready to bloom in my garden, and I can't wait to see the results.
Here are two informative articles about biennials - including when to start them from seed, the best varieties for cutting, and tips for getting the longest vase life from them.
Biennial Article from The Denver Post
Biennial Article from Floret Flowers
Shown in photo: foxglove