Mitchell Giannini founded Giannini Landscaping in the spring of 1977. He began working from his parents' Lindenhurst home, cutting his neighbors' lawns while attending Farmingdale College to obtain an Associate's Degree in Horticulture .

After outgrowing his parents' garage, Mitchell moved his business to 44 East Montauk Highway, Lindenhurst in 1983. The following year, in addition to the landscaping business, Mitchell opened Twins Gardening Center and Florist.

In 2000 with the landscaping business expanding , Mitchell closed the gardening center and relocated to 164 Ocean Avenue, Lindenhurst where he is located today. The same year, Giannini Landscaping bought a Holiday decorating franchise to beautify the exterior of homes in the winter season as well as the spring and summer.

Today, Giannini Landscaping is a full service landscape design and lawn maintenance company. We supply a fleet of fourty-four clean and well-maintained trucks, with uniformed employees.

Giannini Landscaping is also well known for its beautiful landscape services and design. Giannini Landscaping also specializes in commercial snow and ice management. These services include plowing parking lots and condominium complexes, shoveling walkways, salt and sand applications, as well as machine service.