Agree with Pansyface's ID - I think 3 is Cotinus 'Royal Purple', the Smoke Bush, and 4 is Viburnum davidii. Could 5 be a Euphorbia? Don't think it's rosebay willowherb...
Since 2019 I've lived in east Clare, in the west of Ireland.
The last looks like one of the euphorbias or spurges. Be careful if it is as the sap can cause irritation and burns if it gets on your skin, especially in sunlight and it can be very dangerous if you get it in your eye.
For the others, if you google "RHS+plant name+cultivation" you can often find info on what they do, how big they get, when to prune etc.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
So pleased to be of help. Amazing what kids can do on computers nowadays. Puts me to shame. Many thanks for your comments @Pansyface, @Fire and @Pauline7. Love the flowers Pauline.
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For the others, if you google "RHS+plant name+cultivation" you can often find info on what they do, how big they get, when to prune etc.
Agree with others.
5 Looks like Euphorbia mellifera.
https://www.google.com/search?q=euphorbia+mellifera&client=firefox-b&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi63Ov2wcHbAhXpI8AKHUsSBeAQ_AUICigB&biw=1920&bih=943