Mystery plant

Hi, Im new to this forum and need help please

We moved into this house 3 years ago and have done a lot to the garden and every now and again we find a plant that wasn't there the year before!

Can anyone tell me please what this one is? The plant is about 4 foot high and growing in sun (although I think there is one further down the garden in semi shade)

The flowers are tiny, especially compared to plant and leaf size. I have no idea!

I asked this question for  a very similar flower last week and was told figwort, but the second picture has different leaves, more similar to a salvia. Hopefully the person who helped me will pop in later.

Still definitely Figwort - leaves do vary a bit.

http://www.google.co.uk/search?q=www.&hl=en&rlz=1C1SVEE_enGB425GB425&prmd=imvnsz&source=lnms&tbm=isch&sa=X&ei=gwcIUN7OK6WO0AX-rpzLBA&ved=0CEwQ_AUoAQ&biw=1366&bih=643#hl=en&rlz=1C1SVEE_enGB425GB425&tbm=isch&sa=1&q=figwort+plant&oq=figwort&gs_l=img.1.1.0l4j0i5l2j0i24l4.2825.4323.0.7039.7.7.0.0.0.0.88.481.7.7.0...0.0...1c.IUJiOsEkqJU&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=32005a6303b5dc02&biw=1366&bih=643

Thank you Kate, do you have a link to your question please?

Thank you Dovefromabove, certainly looks like it!

As I said in answer to Kate's query, it's the first 'new' plant that I learned to identify on school nature rambles as a child, so it's implanted in my memory.  It was used in the past to treat skin conditions. See http://medicinalherbinfo.org/herbs/Figwort.html

http://www.gardenersworld.com/forum/plants/salvia-sclarea/4449.html

Dovefromabove I am still trying to find a home for it

Mine has insinuated itself between the echinaceas, and as it matches the colour scheme there, it will be allowed to stay

I shouldn't think the usual garden centres are intentionally selling figwort, unless labelled as a wild plant/herb.

Silverfairy, this is what mine looks like now, planted it last year .....

That's quite a magnificent specimen you have there Penninepetal!! Mine has multiple stems too, but not quite on a par with yours