This guy is long winded,but his ideas are really great! I just bought 20 10 liter buckets on eBay to try the idea out. I will put tomatoes into the buckets. I'll mulch the tomatoes with straw to help save moister. And I can add a little of my compost tea to the water. This will feed the tomatoes when they take in the water. I am sure this idea will work well. You could do this on any balcony. Very cool idea for any small garden.