Humble Nettle, Pretty Flowers, and a plea

This looks like a cultivar of the yellow archangel (Lamium galeobdolon), gele dovenetel in Dutch. Its leaves have a pattern in white on them, and its flowers are yellow and tiny, but quite pretty:

^{Olympus Stylus 1s, 240mm, ISO100, f5.6, 1/1000s}

Even though this particular species has been cultivated for gardens, most people think of nettles and dead-nettles as weeds and will remove them when they see them.

It is, however, a good idea to leave some standing, as some very pretty butterflies lay their eggs on them. It is understandable you would be horrified if you saw this in your well-kept garden, a whole family of black caterpillars on a stinging nettle:

^{Olympus Stylus 1s, 42mm, ISO400, f8, 1/100s}

But consider: these are the caterpillars of the European peacock (Aglais io), dagpauwoog in Dutch, and you do want those in your garden:

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/500s}

In many regions, butterflies are having a hard enough time as it is, so leave some of those nettles for them and enjoy the butterflies.