Galanthus 'Flore Pleno' is the lovely double snowdrop with flowers like the underskirts of a ballerina's tutu. Wonderful scent.
Certain bulbs do better planted in the green, rather than in their dormant state. It's like lifting a clump from your own garden, and very quickly they settle in and will start to flower from next year on. After three years you can then lift and divide your own and scatter them right through your garden, one bulb about 15cm (6in) from the next.