A landscape architect should cost around $75-$85/hour.

The cost of hiring a landscape architect will vary depending on the size and scope of the project, as well as the location. In general, landscape architects charge between $50 and $200 per hour, with larger projects costing more. Some factors that can affect the cost of a project include the number of trees or plants that need to be installed, the complexity of the design, and whether or not any construction or excavation is required. It's also important to note that many landscape architects require a deposit before beginning work on a project, so be sure to ask about this up front.