Want to add a garden but have limited space? This pyramid-shaped planter provides 36 linear feet of planting area, yet its base is compact enough to sit nicely on a deck or patio. Fill it with flowers, herbs or vegetables--its unique tiered design allows for easy access and lets light reach all of your plants.
Good ideas on putting compost and ways to heat under the plants as well.
I like my added on greenhouse. Irma helped me plan. I like to have fresh veggies in the winter.
INFOGRAPHIC: How to successfully grow an herb garden
Free Solar Greenhouse Plans Blueprints for a DIY Lean-to Greenhouse Utilizing Passive and Active Heating Techniques fro http://www.hobby-greenhouse.com/FreeSolar.html
The Lean-to Six from Gabriel Ash-- website shows blueprints of several different style greenhouses