Summer bulbs

If planted up pots of various sizes with summer flowering bulbs including anenomies, summer bluebells, Fressies etc. after flowering should I lift the bulbs and store for next year or can I place the pots with bulbs into my cold greenhouse and overwinter. If I can how should I treat the potted bulbs during storage.

You can leave them in their pots and either let them dry out or keep them barely moist.

I agree, if you keep them in pots then that stops them totally drying out - you do not want that to happen either. A shed full of bulbs is a feast for mice - Freesia esp. I would keep Anemones out in the garden as theya re hardy.