Help to ID some plants

I started working on my garden, but still don't know all the plants there. Please help me to identify the plant shown in the following pictures taken last year.

From the second picture I need to identify the tall plant in the center. It has a very strong smell.

The plant in the first picture is also shown to the right of the second picture.

The plant in the third picture is growing seems to be invasive and I wonder if it is a weed.

Thanks

 

1. Artemisia ssp.?
2. I'd guess anise-hyssop, Agastache foeniculum.
3. Acanthus?
4. Iris.

 

2 Lemon Balm (Melissa officinalis), ????????????

Liz

 

The third picture could not be acanthus. I think I would have notice it in my garden last year. Any other thoughts?

 

Is not it Geum on the third picture?