Do bluebells spread?
Similarly one may ask, do bluebells multiply?
Although the native English bluebell and the larger Spanish bluebell are often grown in gardens, they can multiply and become a nuisance, requiring control. Spanish bluebells can also hybridise with the native form so are best controlled in gardens close to woodlands where the English bluebell is growing.
One may also ask, do bluebells self seed? If planted in the autumn then plant the Bluebell bulbs about 15 cm apart to a depth of about 5 cm. Bluebells can self-seed profusely. They need the winter period to break dormancy. You can plant Bluebell seeds but you need to accept that it may take many years before you see them in flower.
Also to know is, are bluebells invasive?
Like Japanese knotweed, bluebells are sometimes considered to be an invasive species where I live. There may be nothing inherently bad about a specific invasive plant. When it's outside of its native habitat, however, it may grow or spread rapidly and cause environmental or economic problems.
Do Virginia bluebells spread?
Virginia bluebells are excellent interplanted with other blue-flowering plants such as perennial woodland phlox (Phlox divaricata). Virginia bluebells spread readily by seed, moving outward from an original planting at a speed of a foot or two a year.