I only got the plants as root cuttings last summer. They are not mature enough to flower at the moment, I would have thought. They grow naturally along side Cephalotus, so I treat then the same but in shallower pots. I over wintered them at work this year under 2 T5s. But this year I'll keep them in the greenhouse and bring them in to the house if we get below 0 temps over night.
Here is a link you might find useful.
http://ngcarnivorousplants.blogspot.com/2014/02/drosera-hamiltonii-growing-guide.html?m=1