Preservation of bulbs
First, choose the biggest and best-looking bulbs, then get rid of the small bnulbs which may grow around them.
Keep them in a cool place, to avoid them vegetating too soon. Keep them away from frost, in a garage or a basement, for example.
Place them in a small box on newspaper or on sawdust, which protects them from humidity. Be sure not to cover them, so as to allow for a good ventilation, which protects them from diseases. You can place a wire mesh or a net on top to keep rodents away.
Label the boxes correctly, keeping them out of reach of children, who can quickly make astounding mixtures !