BBC Wildlife Magazine
If you’re lucky, you might in a village spot a common blue, but realistically this is the only ‘blue’ likely to be encountered in the average British garden. Chris Packham called it the “daintiest darling” in his book Back Garden Nature Reserve (still in print after 19 years). The holly blue is among the first of the year’s butterflies not to have hibernated as adults – ones on the wing now overwintered as chrysalises, which formed last autumn. Numbers peak in May, and there’s a second brood in July to August.
Join the RHS/ Wildlife Trusts gardening project: wildaboutgardens.org.uk