Some kind of Daisy

We bought this plant earlier this year, and have forgotten its name. It has flowered constantly so we are very happy with it.
I am doing an online photography course run by Emma Davies this is one of the exercises, stacking. Something I have never tried.
It's a macro shot using 5 images of the same subject focused at 5 separate points then stacked and blended on the PC, I used Photoshop. It took me a while to get the hang of it, but it was worth the effort I think.