As we edge towards July, look out for the bellflowers or campanulas. Spectacular in high summer, they have been taken into the garden and given us Canterbury Bells etc Nettle-leaved Bellflower grows in woodland margins and betweeen paving slabs on my patio. Clustered Bellflower is a plant of the chalk downs Giant Bellflower is to be found in northern Britain Harebells flower from now until September