Posted: 25/04/2014 at 11:32
Lots of plants there that willcome up and flower this year. I'd just wait and see.
If you want forget me nots next year you need to let at least a few set seed, they're biennials
Nettles are perennial and usually need controlling rather than preserving. You'll have them seeding for years.
I can't see yellow rattle in your photo. AS long as mine goes as well as it usually does I can send you some seed later in the season.