|It's just dirt|
I spent two straight weekends planning, buying, organizing, and planting. I first had to get the basic supplies: potting mix, earthworm poo, Osmocote time-release fertilizer, a few pots to replace the ones that were cracked beyond repair from the winter, and a new watering hose. Oh, and another pair of gloves. The ones shown here keep my palms dry when things start to get messy.
I'm often astonished at how much I pay for dirt. It's just dirt. But be sure not to use soil from your garden when you plant. First, it's way too heavy and drainage will be a problem. Second, it might harbor bacteria and fungus that will damage your new plants.
Now get digging.
Bookshelf: Container Gardening Books