Hi JMaurissen...what sort of light can you provide in your windowsill environment? There's quite a few
plants that are small with beautiful flowers..
If you go to our various threads of 'what's blooming this month'..you will likely see
many plants that fit your bill. and then the fun starts trying to find them! If you live
in an area where there are orchid shows..it's easy to see plants in bloom and pick
the ones you like...but you have to be able to provide the right environment to keep
them alive and rebloom for you.