The board shall have the exclusive control and management of all lands or real property and improvements thereon which now are or may hereafter be acquired, set apart or dedicated to the use of the people of the city as public parks or pleasure grounds.
The board shall have authority to purchase all articles and materials for, and have all work and labor performed upon, said parks and pleasure grounds.
The board shall have authority to direct and regulate the planting, trimming, pruning and care of shade or ornamental trees, shrubbery and grass plots in any and all of the public parks and street right-of-ways of said city, and to cause the removal of unnecessary or objectionable trees and shrubbery from such parks and street right-of-ways, and to see that the weeds upon street right-of-ways and such plots are kept out, and that said grass plots are otherwise cared for and beautified.
The park board shall have authority to prune trees and cut any and all shade trees now growing, or which may be hereafter planted and growing, along and in front of any public or private property outside the sidewalk line within said city. No trees shall be trimmed within said city by any other person than the owner of the property on which they front, except by the authority and under the direction of said board; and said board shall have exclusive authority to determine as to the necessity of trimming or removing any trees.