They may also lay sod, prune trees and repair gardening tools and fences. Landscape Gardeners keep up city, state and national parks. Following a planned design of the landscaped area, they lay sod or sow grass seed and plant shrubs, flowers, and trees. These workers also trim hedges, prune trees, spray herbicides and pesticides, mow lawns, and remove rubbish. They may also help repair roads, walks, and greenhouses.
Greenskeepers maintain the grounds of private and public golf courses.
Operating tractors, electric and hand mowers with various attachments, they till, cultivate and grade new course areas. These workers use fertilizers, pesticides and other materials to keep the grass healthy, cut grass on greens and tees to the right height, and connect hose and sprinkler systems at designated points on the course to water the grass. Lawn Service Workers use thatchers, power and hand aerators, and chemicals to grow healthy lawns. They remove dead leaves and grass and rake lawns to put air into the soil. They apply fertilizers, fungicides and pesticides on a set schedule.