I'm planning on setting up raised bed garden next to our garage.
It's south facing so should get plenty of sun and warmth reflected by the wall of the garage. The question is, with the dream of successfully growing tomatoes and other vegis that prefer a warmer climate than we naturally have, what can I do to maximize the effectiveness of this area? Is it worth covering the soil with black visqueen to further harness the sun, or do I run the risk of the soil not breathing enough or getting mold or root rot?
I've had enough disappointment with unsuccessfully growing in our previous garden that I gave up, but I'd like to give it ago at the new location. I'm planning on roughly a 20' wide 2' deep bed. Also what is my best soil to build up the bed?