What grows in dark/dry areas?
Here's a picture of my house on a bright and sunny day. The front of our house doesn't get the sun until about 5pm and along the front of the house was a disabled access ramp that we've built a small wall and filled with stones so there's no soil either. https://drive.google.com/file/d/0B5_vK1yaxLQ0ZTBOVjZFQXhEX0k/edit?usp=sharing
I've tried a few different pot plants but havn't had much success.
Ideally I'm looking for a few plants that are happy in pots, with limited day light and ideally quite colourful? What should I go for?