This is the busiest time for landscapers. The days are long, warm, and usually dry. This means that a lot of projects can get done in a relatively short period of time. It is also the best time to schedule a hardscape project such as patios, walls, or walkways. The long days mean that your project will get done more quickly.
However, good landscaping companies fill up their schedule very quickly. If you want to have a project done by the end of August, the time to schedule is now. A quick completion is not the only benefit of scheduling a project in the summer. You also get to enjoy the end result while the days are still pleasant.