When I saw this larva in the garden on a cultivated Malva sylvestris (common mallow / apotekerkattost), I didn’t imagine this was a painted lady / tistelsommerfugl (Vanessa cardui), but it turns out that mallows (Malva spp.), other members of the Asteraceae and comfrey (Symphytum) can all feed the larvae!
It’s been a long wait, but I can finally taste a few mulberries….both my bushes which are about the same age started producing after about 15 years, although neither tree had been looked after and had been more or less left to themselves. Both are in shady parts of the garden. I hadn’t really believed that they would produce berries, hence the neglect! I think they are both white mulberry / hvitmorbær (Morus alba), but one has red berries. I did have a purple-berried white mulberry at one stage so it could be this!