If you have taken up the task of landscaping your garden upon yourself, there is a possibility that you might just make a few mistakes. Not that the landscaping procedure cannot be done without professional intervention, but in case you do it yourself, keep a few things in mind so that you do not make any major mistakes.
The first mistake you might do is not to sketch out a concrete plan. People generally have a tendency of working in a helter-skelter manner, with no regard at all to any basic design. You could place a pot of plant wherever you find an empty place without thinking if it fits the place and the corner or not. In order to avoid such mistakes, before taking to the garden, take a pen and paper in your hand and sketch out some basic drawing and plan for your house. Next, dedicate all your effort and energy to realise that very same plan and implementing it as well as it looks while on paper. Do not make any alterations howsoever small when converting the design on paper into reality. This way, you could landscape your garden all by yourself.