Do some garden visiting this season, see what you like the look of, then plant in autumn
A few of them are native Sue.
But I agree, most of them are pretty forgiving
I can't see them well enough to give an opinion
Not sure where my money would be in a contest between green alkanet and comphrey Dave
Looks like one of the comphreys
There's a lot of yellow leaf about, do pieris and astilbe come in yellow or are they deprived of nutrition?
That looks a bit dead
I think I'd tackle the nursery you got them from
2litres is a good big pot full. If you teased out the roots and watered them in you should have had no problem.
I don't think you can post photos from a phone, some people use photo storage sites and a link
Not my area of expertise
But you haven't got it too wet have you? Manyof that type of plant like it gritty and dry.
The top one has a sort of over-watered damp look.
The usual problem with these is too much growth. How big were they when you planted them (pot size)?