Unknown "shrub"

I have come across a "shrub" growing in the lane near me ... it stands about a metre high, it has spear shaped matt leaves with clusters of tiny highly scented white flowers. It seems to spread by underground rhizomes,looks very invasive but the scent is overwhelming .... any ideas. [/img] [/img]

 

could it be Himalayan knotweed (Persicaria wallichii)?

 

Hello, warncliffe, and welcome to GC.

I certainly don't know what it is ... but wouldn't mind having it. That looks more than a metre high.

Sorry, woo, I can't see where it is a Viburnum, highly scented and so small?

Come on folks, ID this beauty.

 

Wharncliffe, is it definiteley a shrub? because to me it looks like a climber, namely Russian Vine. David.

 

I think Swanseadel got it. Himalayan knotweed seems to have that flower, leaf and growth habit.

 

Thanks for the response everyone, definitely not Russian Vine (I once made the mistake of planting that some years ago, never again). As I say it stands about a metre high and there are offshoots appearing everywhere. The mature stems are quite thick (15mm) and "snappy". It was the flowers that first caught my eye and then the very,very strong beautiful scent, by the way its growing in full sun.
I will take a look at Himalayan Knotweed.

 

more on Himalayan knotweed

I think this is definitely it. Rhizome, and invasive. Also i'm sure i read elsewhere that it has a scent.

 

After studying a few books I believe swanseadel has hit the nail on the head, 100% sure now its Himalayan Knotweed ..... a shame really, has I was going to "borrow" a few offshoots to help stabilise a steep earth bank, not now though .... thanks again everyone.