Posted: 19/03/2014 at 11:51
Yes, it's only cabbage white butterflies that will lay eggs on brassicas, and a fine netting cage built over these helps keep them off, as well as keeping pigeons away.
Four of our favourite native butterflies use stinging nettles to lay their eggs and for their caterpillars to feed on. These include the Peacock, Coma, Small Tortoiseshell and Red Admiral.
So it pays to leave some nettles around in quiet corners or natural 'wild' areas to provide a nursery for native butterflies!