Here's a couple of sites for bulbs that will work in shaded areas.....
If the pups like to dig up stuff be careful with bulbs. A lot are deadly. I love Lily of the Valley but it is poisonous for dogs.
You know your bleeding heart will die back completely soon, right? It will look like it has disappeared. Then next year it's back and doing well.
Any time I am being too yacky tell me to back off mf.
Gardening, regardless of what my poor gardens look like right now, is one of my favourite things to do.