I have seen them on an east side with only morning sun and in the south and west where they get full afternoon sun. They bloom wherever but really prefer full sun! There is this green leaved version plus a gray leaved version. I prefer the green over the gray(and I usually love leaves that are other than green) because often they revert to green anyway. The plant grows pretty fast; about 3 feet in one year and up to about 5 feet. They bloom when you wouldn't think a daisy shouldn't; Autumn through Spring here in SoCal.
What is great about Euryops is that if it gets too big, just whack it back! It takes to cutting down to bare stems. Try that on a Marguerite and you'll be sorry, it'll be dead(I know from experience). Sometimes the young plants can get rangy. Just cut each stem and 2 stems will come out making the plant bushier.
Enjoy the sunny daisy flowers of Euryops!