Woodland plants

Hello,
The curb between my house and road is woodlandy - 3 lime trees and 1 copper beech, with holly and laurel shrubs, the odd fern plus ivy ground cover (and until recently nettle and bramble). I'm wanting to add in a few plants to brighten it up, although accepting it will always look fairly wild.
I've bought some bulbs - bluebells, snowdrops, miniture daffs, crocus - that will go in this month. Is there anything else anyone can suggest? I've got a bright pink Calico Bush in my garden that looks gorgeous and having read it's a woodland plant I though I'd see if I can propogate a bit of that and push it in. Which made me think is there anything else similar that'd look as lovely.
Soil is clay. Needs to be low maintanence. Novice gardener so feel free to suggest "obvious" things
Thanks very much
Posts
Please ignore this post as a duplicate in error (PC got stuck when submitting and I pressed the submit button again...)
Some native primroses would look beautiful in spring as would some perennial Geraniums for summer colour. I'm sure other will have suggestions too.
Foxgloves, hostas, tiarellas, brunnera, pulmonaria - but add plenty of good, moisture retentive material to the soil before planting these last two.
Dicentra is a lovely woodland plant
Brilliant - thanks everyone. I'm going to treat myself to an enjoyable hour this weekend looking up plants and making some choices. I think foxgloves are a definite, and Dicentra (flowers look weird!) and Soloman's Seal and maybe Cyclamen.
I posted my query twice by accident and Jean Riley put the following link on the other post:http://www.beautifulbritain.co.uk/htm/nature/woodland_flowers.htm
and I'm tempted by the wood anemone and celandine. Plus rhododendrons seem to grow well in my area so might add one of those.
So much to choose! I'll select a few and plant and then maybe add more in a year or so when I see how they get on.
I hadn't heard of woodland seed so think that maybe worth a go and see what seems happy.
Thanks everyone!
Noodle