Now I really like this idea for the popular growing tomatos upside down - from
Frecklewonder blog. She writes
her husband built an official upside-down-tomato-grower's-structure of sorts.
I've seen the tutorials for 'how to' but I really like this diy idea; clean, clear and definite and I Want This in my yard!

Cut some holes in the bottom of the buckets to plant the tomatoes, and hang them in a sunny spot! The rain will water the tomatoes from the top of the bucket, and you can easily water them yourself if the weather is not cooperating.