Id this perennial please

[AncientAzalea]

Ends up covered in lovely yellow flowers and I want to get one for my mum but can't remember what it is!

Looks like ludwigia palustris

Looks like St John's Wort to me.

Agree St John's Wort (hypericum) 

Just googled and don't think it's either of those but thank you.

Or ludwigia - never heard of it before!

Maybe a better photo?

It's sort of a trailing plant.

Some kind of fushia?

Lysimachia

None of these are right from what I can tell. Will post again when it flowers! Thank you all.

It looks like a self sown Mimulus. Sometimes they can last through the winter, if sheltered.

It looks like a fushia to me

Could it be a type of honeysuckle?

A fuchsia doesn’t have yellow flowers.

Lloks a bit like a Japanese honeysuckle.

Are the flowers like this:

www.gardenia.net/plant/lonicera-japonica

I also thought honeysuckle

@rainbowunicorn has it. Lysimachia congestiflora.

It's a hypericum of some description, e.g.www.thompson-morgan.com/p/hypericum-orange-flair/45050TM

Hypericums have much larger leaves which are much more shrub like that the soft leaves in the photo. The stems are woody too. Lysimachia.

Might it be a Potintella?
www.gardendesign.com/shrubs/potentilla.html

Not honeysuckle. I love the one I have in my garden! I'm checking each suggestion so thank you x

Whoop! Found it. This photo is exactly it although a couple of the images on google search didn't look right.
Thank you all.

Thank you

They don’t call it yellow loosestrife for nothing. Tough as old boots and quite invasive. It will take over a flower bed.

It's been pretty well behaved so far! Three years in there I think and it's stuck to its corner!