We (by which I mean my better half) are in our second season of balcony gardening, and have the following stuff growing:
- strawberries
- tomatoes
- lettuce (little ones, around the tomato plants)
- rocket
- a selection of herbs
- blueberries (these are a long term project, and only gave a handful this year - but delicious!)
I guess anything where freshness is key is worth trying?
We've gotten plants from eBay, which has been a success, and seeds from Thompsons (though I guess it's too late in the season for seeds now).