Posted: Yesterday at 10:41
I think Punkdoc may have put his finger on it. Most annual bedding plants like full sunshine all day.
Fuchsias and trailing begonias are happy with some shade, but they still need quite bright light.
This might be helpful http://gardening.about.com/od/gardendesign/qt/SunExposure.htm
Work out how many hours of direct sunlight your pots and baskets get, and then when you buy your plants look at the labels and talk to the nurseryman or ask at the garden centre.