How much of a threat is the Spanish bluebell to our indigenous type?
Virginia Bluebells, Illinois Extension
Why we should grow native bluebells
InYourGarden: The shrubs you should NOT prune in early spring
Campanula rotundifolia (Bluebell bellflower)
California Bluebell Seeds – West Coast Seeds
Virginia Bluebell Maryland Native Plant
RHS - latest news, breaking stories and comment - The Independent
RHS - latest news, breaking stories and comment - The Independent
English Or Spanish Bluebells – Susan Rushton
Gardening: Why we should learn to love weeds