Looks like Mugwort (Artemisia vulgaris). It looks slightly variagated so could have been planted as the cultivar 'Oriental Limelight'. Interesting plant as it's one of the relatively few wind pollinated members of the daisy family. Its probably of not much interest as a garden plant though being wind pollinated, the florets (flower clusters) are reduced and are not showy at all so I will leave that decision to you.

Thanks I think Im gunna keep it its quite nice to look at looks after itself just needs keeping under contril !

It dies back each year but comes up from underground creeping stems again in spring.

I've had no luck keeping 'Oriental Limelight' from one year to the next, I found it's just not hardy enough to survive even a Cornish winter.

Oooh - er, Beattie, and there was me moaning because it didn't say 'invasive' on the label! I've been digging out loads of roots and it's still coming up in the middle of my Anthemis...:-((((

Perhaps I should blame our slugs and snails. I reckon we have more grams of mollusc per cubic metre than anywhere except the home of African Land Snails. Things I used to be able to grow relatively easily in Herts just disappear overnight here.
Theory 2 - it rots in our extremely wet winters?

Can't imagine the very deep roots rotting...I get snails here, but few slugs for some reason. Just think yourself lucky that you haven't got yet another thug!

I really could do without this one - I've been cutting it back every few weeks this year..I'm thinking of attempting its removal altogether. :-((

The leaves make a good insect repellent, but not on anything edible.

How, Tug? Make a 'soup' of them in water?

In a blender with water and a little olive oil and organic soap, strain it through cheesecloth, then spray it on. I don't recommend it for use on edibles, because it is poisonous to people, but no long term environmental effects, because it's very biodegradable. Sachets of dried leaves make good organic "mothballs", too.

Oh well - can't do that because my Kenwood mixer is dead...I don't think it can be mended, either. :-((

Arrgh! Somehow, the old way with a mortar and pestle just doesn't cut it!

I was given the most fab presant the other day, herb scissors and I thoroughly reccomend them. They have 4 blades either side so, 8 in all and they cit up leaves very fine!

Glad you mentioned the herb scissors - I was looking at some the other day and wondering if they worked. I use a wooden concave board and chopper thingy......

Herb scissors? Never heard of them, sound fantastic, wonder where I can get some. Anything that saves all that faffing about chopping them rather inefficiently with a knife...
This plant can be used with lavender and sage to make a good clothes moth repellent too but should be dried first.

Just google multi-bladed herb scissors Bamboo - loads of hits, Amazon amongst others.......strangely not Lakeland though. I saw them somewhere like Aldi, Lidl or Netto on one of their special offers and stupidly didn't grab them.

But the chopper thing works well too.