The Organge-tip Butterfly uses a variety of plants for laval food, including Cuckooflower (Cardamine pratensis), Garlic Mustard (Alliaria petiolata), Hedge Mustard (Sisymbrium officinale), Turnip (Brassica rapa), Charlock (Sinapis avensis), Hairy Rock-cress (Arabis hirsuta) and Winter-cress (Barbarea vulgaris).
The Orange-tip also lays its eggs on Honesty (Lunaria annua) and Dame’s-violet (Hesperis matronalis) in gardens, although the larval survival on these plants is poor.
The Garden Cross Spider (Araneus diadematus) in these images prey on insects that land on the flower, including Orange-tip Butterflies and their eggs. The spider hides in the remains of a nearby dried plant stem connected to the Cuckoo flower by strands of silk. When an insect lands on the flower, the spider senses it and attacks along the thread; whatever it manages to catch, it wraps in silk and stores in its larder.