Designing a vertical garden for small spaces

I want to try out some vertical garden techniques in our backyard, to make more use of some of the precious sunny spots, especially behind our garage (the back of which faces north). So far, we have really only made use of trellises for peas and beans and corn stalks to support beans and the like - but there is certainly more we can do!

Some of the resources I've found so far make use of trellises, which is a great idea, but I'm kind of looking for something that's more like the vertical garden wall concept that will suit non-climbing plants too.

Here's what I had in mind:

1. Fill a hessian bag with composted soil and water crystals.
2. Stake the bag through the middle and also wrap with chicken wire to give the bag itself some structure and longevity.
3. Stand the bag next to the shed wall and sceure witht he stake and some wire ties (this should stop it tumbling into the garden bed itself).
4. Soak the bag through ready for planting!

This part of our garden is very narrow so the idea of growing "up" means we can hopefully produce more in the small space. The one concern is the amount of reflective heat from the garage wall (being metal), but I'm hoping that the soil/compost filled bag will act as its own insulation to a degree.

It's an experiment, so we'll see how we go! For now, here's another system you could try, from Instructables - very neat idea!


VERTICAL VEGETABLES

Now to think about suitable plants! Hmm, maybe herbs like coriander and parsley and some Chard, lettuces, strawberries, and more!