A professional landscaping contractor can design and implement a plan for your garden and yard. A good landscape designer will spend a large amount of time planning the layout before implementing the design and will do this based on what your ultimate goals are for your garden or outdoor area.
Yes, as part of the landscape design a landscaper may determine that a sprinkler watering system might be needed for your particular climate and choice of plants.
Yes, a landscape designer can make a plan for the maintenance of your garden to maintain the appearance and use of the garden as the original design intended.