I have about 5 different varieties of bulbs that were given to me over the winter...I kept them out in my shed all winter...I have recently looked at them and some of them are really soft now and smell. If I plant them should I be concerned about hurting other plants around them if they have gone bad? Also how far apart should I plant each bulb? Some bulbs are about 3/4" around and others are about 2" around.

Thanks