Notes on what plants can grow where:

1. leafy vegetables like lettuce, cabbage, and greens do well in limited sunlight, making good choices for partly shady areas.
2. More Sunshine ( or lighting) consider: tomatoes, peppers, potatoes, beans, carrots, radishes. Or vine crops like squash (need support to not break), pumpkins, and cucumbers ( but the container must be deep enough to accommodate them in terms of size).
3. Peas: green peas or English peas. 
4. Tomatoes: can be trained up a fence, or can grow upside down
5. cucumber: this is a great plant for vertical planting. The tendrils look for vertcal things to grab onto. 
6. Beans: all beans come in either pole or bush varieties. pole beans would be good in a vertical wall layout
7. consider bell peppers, and lima beans
8. passion fruit, melons and grapes can also all be grown vertically
9. corn grown vertically naturally and beans can be attatched to stocks as they grow upwards.

I am looking at what plants can be grown in vertical garden environments, as well as what plants have the ability to lower air pollution (which is an increasing problem in city living). I was looking at a particular study done by NASA that directly relates to these questions. The study was originally conducted to clean up air within space ships. Below are the basics of what I gained from this research:

1. Indoor air pollution is often worse than outdoor air pollution due to chemicals within homes
2. from cleaners and disinfectants to the VOC's emitted from carpets and paints etc, indoor air pollution sometimes builds up.
3. the study showed that many houseplants also remove harmful elements such as trichloroethylene, benzene, and formaldehyde from the air. Plus they're removing CO2 anyways. 
4. Three main chemicals are found in your home. Trichloroethylene is used in paints and varnishes, Formaldehyde is used in many building materials and Benzene is found often in paints.
   

5. Although all plants help indoor air pollution, some are better than others in absorbing chemicals and removing CO2. You can get most of these houseplants right from your nursery. It’s always handy to have some plants in your home.. but these are some of the best:

   • Philodendron scandens or domesticum
   • Dracaena
   • English ivy
   • Spider plant
   • golden pothos
   • peace lily
   • Chinese evergreen
   Here are two links that show the research around the NASA study
   http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930072972_1993072972.pdf
   
   
   
   
   
   http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930073015_1993073015.pdf