In Seattle we used old containers barrels like this for rain barrels. Mine were an orange/brown color and used to have olives in them. That was many years ago and two residences back.
Now that I am in Southern California, I have had to learn to garden a bit differently. I created a vertical pallet garden in my small yard (see ______) but I have to water it every day or risk plants drooping or drying up – not just from the heat but also from the wind. I live 3-4 miles from the coast and the ocean breeze is part of what makes Huntington Beach tolerable to a Seattleite. But the plants near the top of tha pallet have to be moved around and anything that is sensitive to moisture loss due to wind has to be below the top of the fence.
Treehugger posted this video today, and I was so impressed! I thought about container gardening before going vertical with the pallet and smaller pots, but I just don’t have a lot of ground space so didn’t want large pots. But there are some foods that need more room for roots (carrots being one of them). If I had a couple of these I could grow carrots and then also trellis up some peas or beans.