i think the pink tinged thing is Salix caprea.
You need to clear and prepare soil like setting seed for any other plants. That sort don't grow in grass.
Sow and enjoy, let them seed, cut them back and rake a bit and it looks fine in winter. They'll reseed and the perennial will regrow the next year.
no, that will be OK. Strawbs have male and female bits in the same flower.
yep, Phuopsis stylosa
soil is full of assorted organisms, large and small. Part of life, unlikely to be harmful.
I move a few but mostly let them get on with it
That's very sad chicky
Have a look at Tamarix tetranda
I have the aquilegias, I lack the photography skills. but here are some
A. viridiflora in this one somewhere
A real midget,silly little thing, A.discolor
yes, very strong Fritillary. I think it's the leaves rather than the flowers