I have these daisies in several spots in my garden - I don't know what variety they are. They reseed quite freely (but are easy to get rid if they're in the wrong spot) so I keep spreading them around. They bloom pretty much all summer, although they have the most blooms right now. Deadheading them will mean more flowers right until fall (and also less seeds). They sometimes look ragged in the heat of summer so I cut them way back into the foliage, and they bounce back with more blooms in a few weeks.
They're about 3 ft tall in flower, but don't need staking. They're not classified as drought tolerant but I don't give them any extra water and they do all right (if I cut them back).