Yes I think you're right about the root, Leif
That threw me for a minute
If it's in a bog garden it might be an astilbe but it looks a bit yellow.
The top of the shoots in one looks like bindweed but the bottom of the plant looks odd. Can you put on a few more photos.
I agree Lonicera nitida.
I think I'd make that a bit narrower, taper it in towards the top a bit. I would expect it to make a hedge again and you might as well start with a good shape
I don't recognise that at all but I'll push you up to the top of the forum
put the seeds in a bag of moist compost/vermiculite and put them in the fridge for 6 weeks. Keep an eye on them, they may germinate in there. I sow them early in a cold GH, much easier
Unlikely anything from Tenerife needs fridge treatment.
I can't see any lily beetles on mine. Dove was here this morning and she's good at finding them if they're there
That looks like Mahonia aquifolia. That will seed itself without assistance
I'm don't which hellebore that is, can you get a photo of the leaves?