Bulbs .....

Good evening folks .......... I have a lot of bulbs - spring and summer flowering - in large pots. I also have a large layered tub but please don't ask me what's in it - I can't remember except I do know I planted them for ongoing spring flowering.

When do I feed the spring flowering bulbs - those that are flowering now? Do I add BFB to each pot as the flowers finish? 

When do I feed the summer flowerers .......... as they're growing on now or after they've finished?

Do I wait until the layered tub has finished completely before giving it its tea?? 

and do I top them all up with fresh compost before they start next year?

many thanks in advance .