Hi.I am interior decorator and landscaper, if you do not have time and little cash,believe or not what i did it is i make the first plants at the ground.So i make bricks any kind less than a dollar or more,or plastic "fence" and so i place more soil, if flowers top garden soil, if veggies top soil, so i plant flowers, at edges, so i place behind bricks or whatever, and more dirty, so i plant more flowers. It is like when you are in the ocean,and make a sand montain,playing, but you pace at edges your flowers, and add another "hill" around more flowers....You can make as circle or square. It is hard to explain, it better to drwaing and show you...Later you can add some red molch or white stones...I did it at my home, red tulips in the top, white at middle and so blue grapes...Little patriot garden, everybody loved. I hope i helped.I type toooo fast sorry any mistake.God bless.