You can plant them in the ground in the garden or a nursery bed or keep them potted up with appropriate level of winter protection for the bulbs in your climate. I usually just plant them when ever I want simply because they are so hardy in my zone 3 gardens. If my gardens are quite over crowded I put them in a nursery bed otherwise they get tucked into an appropriate spot. Earlier this spring I found a bunch on top of the ground too and poked them into the only thawed patches of garden I could spot.
