All off-street parking areas which are located in front of a building other than a one-and-two-family home shall be landscaped with a bordering hedge, decorative concrete wall, or fence not less than 2 1/2 feet in height.

All parking areas of 15 parking spaces or more shall be landscaped with a tree for every 15 spaces, and a landscaped island at least three feet wide separating every 15 spaces.