Their ornamental flower heads persist over several weeks, which can extend the life of perennial flower beds and borders and ...

Once planted, they will then return to flower each year as they're perennials. Which? Gardening magazine grew a range of popular varieties to see which would ... How late can you plant allium bulbs?

Do allium bulbs multiply? Alliums are perennial plants that will return year after year. While they are slow to multiply, alliums will eventually start forming smaller offsets on the original ...