I think this is a tansy but don't find anything like it.

The leaves don't look quite like any Tansy I've seen...

It could be Artemisia vulgaris , ORIENTAL LIMELIGHT

http://www.perennials.com/plan...

Thanks Jolana your right on the money!

That is a really pretty plant. Does is have an odor? My experience with Artemisia is sagebrush.

Daisy

I don't recall an odor but it was invasive when in the ground, in my yard. I had to keep it in a pot with a tray
It is beautiful!!

I've seen several large patches of it here in areas where it doesn't get much water after the rains stop so it may be extra vigorous where it is better watered. I never gave it a good look before because it never looked very good and it's planted on it's own. It may have been the only thing that survived there. Too pale for a stand alone centerpiece for me. It does look very pretty at the moment for sure. I'll give it the smell test tomorrow.

Smelled it! Not very much scent at all. Perhaps as it matures it will be more aromatic. This patch has Salvia greggii planted in with it. I might try some of it but keep it a small accent.

I had this once and it spread like crazy and has thick almost woody type stems that are very hard to get rid off, it is beautiful though and drought tolerant.

Oh! I could grow this in my yard... Yeh!

it probably would do well for you.