"The wingspan can reach 76 mm. These butterflies are found from the tundra areas to the subtropics. Females lay one egg each on nettle leaves, which serves as a food for hatched caterpillars. Before turning into a chrysalis, they fold the nettle leaf into a "bag" and entangle it with a silk thread. Unlike many other butterflies, red admirals prefer gum from trees and the juice of rotting fruit to nectar". (wiki)
Butterfly invasion continues for several days. They are everywhere:
on a Physocarpus opulifolius bush,
on a drainpipe,
on a water barrel,
on a greenhouse,
on an old towel,
on a Elaeagnus argentea bush, etc.
I've taken macros to see a head and a body of Red Admiral. Watching close I guess it looks like an alien.
Here is a vase with Callistephus and Cineraria leaves: