Hi
Pots are great for bulbs and if you do a bit of planning you can get something in flower much of the year.
Things like sparaxis and oxalis for summer, nerines and autumn crocus for later in the year, snowdrops , hyacinths, mini daffs such as jetfire, and dwarf tulips or anemones for spring.
Or very low maintainace would be house leeks , they always look lovely and you dont really have to water them.
Or else something simple like four crystal palace lobelia, or some californian poppies (you should be able to sow both of these direct onto the compost surface.
Or how about strawberries they can look quite pretty or if its a warm patch you could try a chillie. they are very decorative once they have fruit on them.
Good luck
x sunloving