Yes

Different varieties vary, but they can be a bit tender though.

They are sub-shrubby by nature (Argyranthemum) but are best renewed with cuttings periodically to produce new plants. If kept for a year or two, they develop very woody stems and look untidy. As said above though, most are rather tender and cold winters will kill them so taking cuttings now for next year and over wintering them is always a good idea.

The other plant confusingly also called a Marguerite (common names eh?) is Leucanthemum vulgare better known as the Ox-eye Daisy and is a perfectly hardy perennial that dies back to it's roots.

Leucanthemum vulgare and that is what I was thinking of - mother had in her garden and it grew for donkey's years. Common names really don't help anyone!