Posted: 21/09/2014 at 10:42
Snowdrops 'au naturelle' are fine, but if they are fully dehydrated to be sold as bulbs it is difficult to get them going again; that is why they are sold 'in the green' soon after flowering.
Bulbs do need feeding to build up for the next year. A bulb is simply a storage vessel. The best time to feed is when they are in full growth. From when they first emerge until they flower. As soon as they start to die back it is too late.