Plant ID please: what does this front garden have to offer?

I have a new project this year. Nearby is a front garden that fascinates me since living here in Wiltshire. Whenever I pass the front garden, something is happening. I noticed over the years that the owner literally clears the garden only once a year (if that is true, I will find out), and leave everything else grow and flourish.
Therefore, I opened a new discussion and I will definitely need your help over the year to identify the one or other plant.
Currently, the daffs show their green and will be ready in March, the rose shows tiny buds, and some other stuff is coming, including two (2) weeds.
This one is showing flowers, but what is it? I have seen it before in pictures, but I don't know the name.

Many thanks in advance for your contribution.
Therefore, I opened a new discussion and I will definitely need your help over the year to identify the one or other plant.
Currently, the daffs show their green and will be ready in March, the rose shows tiny buds, and some other stuff is coming, including two (2) weeds.
This one is showing flowers, but what is it? I have seen it before in pictures, but I don't know the name.

Many thanks in advance for your contribution.
I ♥ my garden.
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There are several varieties.
I live in west central Scotland - not where that photo is...
I ♥ my garden.
There's loads round here as they're suited to the climate, but they'll grow in most locations. One along the road from me is around 10 feet in height, but they can also be pruned.
I live in west central Scotland - not where that photo is...
And why don't you strike up a conversation with your neighbour? He/she/they will be able to tell you much more than we can. Face to face human contact is better than all this virtual friends stuff on forums.
"Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
I live in west central Scotland - not where that photo is...
@bédé They live around a mile far, and I don’t know many people who love to get up at 7 on a Saturday/Sunday morning just because a German knocks on the door asking once a month what that particular plant is. I walk daily 3 miles and passing that garden is only possible by walking the main road.
I ♥ my garden.
Now, I need your help.
My eye caught this below, and I promised her to ask you what this could be. She hadn't seen that before.
Being a German, I think immediately of the worst, Japanese Knotweed, but the internet shows a different type of shoot, more greenish.
Do you know what this is? It comes up along the border.
Thanks in advance.
I ♥ my garden.
In the sticks near Peterborough