North facing window box ideas

Hi everyone,

I've got another idea that I need your help with please!

I want to put a couple of window boxes on our north facing living room window sill.

But what, if anything will be happy growing here?

I was thinking cyclamen, maybe trailing ivy, hellebores and winter violas or similar for a bit of colour. Do-able? Any other ideas? And are there any spring bulbs that could cope with full shade?

As always, any suggestions much appreciated.

 

Ornamental cabbage for winter..?

 

They're so pretty, would never have thought of that!