Although generally Drosera do not require extremely high humidity to produce their typical dew, this is one species which prospers under dim and very humid conditions. I prefer the use of live moss, and grow mine in a shallow undrained glass bowl. This encourages the roots to reach the surface where they form abundant offsets. The moss grows in a mound, and the individual new rosettes poke out of it. As the moss grows, so grow the plants. I refill the bowl as soon as any drying of the moss is noted so it stays quite wet.
Although the plant will grow in other conditions with some care to acclimization, I have never found that it grows as well as via this method. I have seen better colored plants grown in full sun, and this is worth trying for if you have a surplus of plants. It takes a bit of attention to get tthe plant to where it can grow outside a terrarium, but it is possible.