Fertilizing established bulbs

by Sally
(Saratoga Springs)

When do I fertilize established bulbs...tulips, daffs and grape hyacinth? Planted them with bone meal originally, and I'd love to keep them great looking instead of digging them up and replacing. Thanks for any tips.

Doug says that he only feeds them when he applies compost to the garden (in spring or fall). Spring flowering bulbs are not big feeders. Lack of blooms is related to other things (detailed in some depth here on questions already) and not usually feeding.