A landscape designer is a person who plans and creates outdoor spaces, like gardens and parks, by arranging plants, trees, and other elements in a beautiful and functional way. Full definition
Collaborative projects with landscape designers, architects, and landscape architects expanded the outdoor site and contextual integration. (en.wikipedia.org)
To start, consider paying a professional landscape designer or contractor for a landscape master plan. (moneysense.ca)
A good landscape designer / planner will see this and point out ways to mitigate possible future problems. (moneysense.ca)