Although they hide beneath their leaves, red on green left me wondering why I hadn't noticed more of them ?

Their thin membrane hides a syrupy inner liquid.

Reminds me of Miracle Fruit or some other Eugenia

Never seen Eugenia growing here. Too cold!

Pics not clear.
Have tried lightening it.
Are leaves in opposite pairs.
Are berries in pairs.

Probably Lonicera sp.
Flowers can be tiny, hidden under the leaves.

Oops I didn't realize the OP was in the UK. A friend here in town dabbles with Eugenia but its actually too cold here too, just further South in Orlando and Tampa its doable

It was a challenge to photograph, I may need to return.

The leaves do appear to be opposite. @Aleema, this is one of the first things to photograph or note for ID purposes, whether the leaves are arranged in pairs or singly along the stem. If you could try and indicate that when you post pictures it can be very helpful.

I went back again today, how useful are these ?

Much better.
Thanks.
Definitely Lonicera sp.
Need to see the flower to take id further.

There are no flowers at the moment.

I realise that...you will need to wait until next spring and re visit.
It is a spring flowering honeysuckle with tiny flowers.
1st the flowers.
2nd the berries.

Am I too late for the flowers again ?

Yes. The fruit form from pollinated flowers.

You need to be looking for the flowers much earlier....maybe even before the leaves have opened.

You still don't seem to have got the hang of this.
I will try to keep it simple.
ALL plants produce flower.
Some plants can take 100 years before they produce flowers.
FIRST come the flowers .
Sometimes with male and female "bits."
Sometimes they only have male flowers...which carry the pollen on the anther, part of the a stamen.
I remember it as STAMEN = MALE.
Sometimes they only have female flowers...this has something called a stigma to catch the pollen from the male part.
I remember it as STIGMA = MA ( short for mother)

Only after the female part has been fertilised by the pollen from the male do you get a berry eg honeysuckle/or hard nut eg Horse chestnut/ or a seed capsule like a pepper pot eg Poppy / or a fruit with the seeds inside eg apple/ or grass type plant eg wheat /or a winged seed eg sycamore. etc.etc.etc

Some flowers die after they have produced seed.
Other flower and produce seeds every year.

P.S. Not all flowers are pretty with coloured petals....some like the Titan lily are weird and wonderful...and stink
https://en.wikipedia.org/wiki/...
See David Attenborough's video.
https://www.youtube.com/watch?...


https://www.google.com/search?...