Found this browsing online, sounded interesting for those that have limited gardening space.
http://www.amazon.com/Vertical-Garde...s_154606011_75
Vertical Gardening - Bountiful Harvest in Small Places was written by Don Evans, an avid gardener who enjoys things a little "different" in his garden. Designed to be concise and simple, with detailed plans and instruction on building Vertical Planting apparatuses from everyday materials found in any backyard and local hardware shop - and certainly won't break the bank.
Inside you'll find...
A look at the idea behind Vertical Gardening, whether as a focal point in an existing garden layout, or as a means to enjoy gardening in tight spaces.
Buying a Vertical Tower - the things to look for, and the additional items you may need.
How to build a Flower Tower - An inexpensive, easy to maintain and colorful item that will surely be the focal point in your garden, & the envy of all your visitors.
How to build a Strawberry Tower - Enjoy unlimited fresh Strawberry's, and enough for the entire family, all from the harvest of just one of these beauty's.
How to build a Herb Tower - Imagine enjoying the freshest of fresh herbs right from out your back door. No more dried herbs for you, after all nothing beats fresh!
How to Build a Vegetable Tower - Yes, you can grow vegetables vertically, but of course you have to pick your species. (Plan on buying your sweet corn from the market still - some plants of course aren't meant to be grown in a tower!)
Building a Potato Tower - Turn a handful of seed potatoes into 20 lbs of fresh potatoes in an area of no more than two square feet!
Vertical Gardening - Bountiful Harvest in Small Places is great for all gardeners who are looking for ideas to brighten up an existing garden, maybe create awesome Flower Tower sentinels to grace a deck, or for those looking for some fresh herbs perhaps, but have limited space. The possibilities are endless.