There shall be shade trees planted where possible and practical along either side of each new street, as the streets are hereby laid out and established.

In each subdivision of land the developer shall plant trees along either side of the streets, proper shade and or decorative trees at a maximum distance of 50 feet between trees. The minimum distance between such trees planted shall be 40 feet.

Where sufficient tree growth exists on each lot, no additional plantings shall be required.

All trees planted in accordance with the provisions of this chapter shall be nursery grown of substantially uniform size and shape and shall have straight trunks. Ornamental trees need not have straight trunks, but must conform in all other respects with the provisions for trees and tree plantings outlined in this chapter.

All trees planted pursuant to this chapter shall be planted in a dormant state.

Subsequent or replacement plantings shall conform to the type of existing trees in a given area, provided that if any deviation is anticipated it must be done only with the permission of the Planning Board. In a newly planted area, only one type of tree may be used on a given street.

All shade trees to maximum extent practicable, shall be native to the area and shall be a minimum 1 1/2 to two inches caliper, and of a species approved by the approving authority.