long-blooming bulbs?

Are there any long-blooming bulbs besides day lillies that can take partial shade?

Bluebells - Hyacinthoides are great for shade as are Anemone nemerosa and blanda, Winter Aconite, snowdrops and Daffs will all cope with shade (and some will spread like wildfire) or are you looking for later blooming bulbs?

I"m looking for bulbs that have a longer blooming season. Not just a quick flash in spring. Since I wrote this I looked in the center of Brent and Becky's Bulbs catalog and there is a list of all the bulbs and when they bloom and it gave me what I wanted to know. Thanks.

I have a dahlia in partial shade. It gets pretty sprawling but it still blooms.