what to plant with "little lamb" hydrangea- please recommend

Am racking my brains, Zone 3 must be very cold in the winter, and then I realise you're in Canada! Keep thinking of things but not too sure they'll survive the degrees of cold you get there. Hope to get back to you after checking one or two. And I don't know if you use the Latin names there - they don't seem to in America. Let's hope you can understand and interpret anything I come up with. First one that comes to mind is a Spiraea - Goldflame in particular, deciduous, yellow/pinky leaves, orangey looking when they first appear, flat pink heads of flowers end May/June, but am not sure if it'll tolerate your winters. Need to consult my books!

Yes, actually the one to the left of the hydrangea is a spirea but not too sure what variety. It does very well here.
The one on the right is a potentilla but I'm not too fond of it. They tend to plant a lot of those here in parking lots.
I have a few books and the internet so no worries about using Latin names:)
Oh and yes, it does get pretty cold here in the winter, haha, but you'd be surprised at what can survive. We can always shovel snow over it for insulation!
Thanks so much!

The Spiraea I referred to is one of my favourites because I love the leaves. I think the leaves are probably more important than the flowers on any shrub - these only last a fortnight anyway. Strikes me you need something evergreen in that bed too, otherwise very bare in winter. How do Euonymus varieties do there? E. fortunei and its cultivars are the hardiest. And what about grey leaved shrubs like Senecio, though that's now been rechristened Brachyglottis, very unlovely name. Skimmia? You'll need a couple to get the berries, male and female, or there is one, reevesiana, that's self fertile, but I never find it grows too well. Lavender? Cotoneaster, though you'd need to be careful which one because they can spread so much. Coloured stem cornus, such as C. alba 'sibirica' or C. stolonifera 'flaviramea' - these get big, but the idea is you prune them back hard because it's only the new stems which are coloured. For purple leaves, though deciduous, Berberis thunbergii atropurpureum 'nana' and there's a small red leaved variety, can't remember it's name. Hope this helps. Have a look at my photos in my profile for how good just having different shaped and coloured leaves can look.

Okay, done some more research, having thought about the fact that evergreens, whilst necessary, will probably just be under snow all winter! The following seem to be okay for zone 3: Acer, Deutzia, Prunus cistena, Syringa microphylla and possibly Pieris, which is evergreen, of course. I notice, though that Hydrangea is listed as down to zone 6 in my book! Have fun.