My post over on Fiskars.com is about pruning your fruit trees. What fruit trees are you growing on your balcony?
The time to prune your deciduous fruit trees is when they’re dormant, which means December or January in mild climates like Southern California. I only have three fruit trees, and one of them is a blood orange (citrus trees are evergreen, not deciduous), so it’s easy for me to get all my pruning done in December. But if you have lots of fruit trees, or if you are just too busy in December, by all means, wait until January.