Hello Krystian Adult Aglais like flowers, such as Buddleja or Verbena. They will also take sugar water (50:50) or honey (50:50) on cotton wool. They can be a little difficult in a small space, they like to fly. If you want them to lay eggs. I find that I do not put the nettle in too early. let them pair and allow the eggs to mature over a few days and then put the nettle in. Good luck Prem