It says to get permission before planting, in the park rules, nothing in lease.
Home and Homesite Maintenance and Appearance
7. Prior to beginning or changing any landscaping, you must submit drawings and plans to Management for written approval. All landscaping projects must be completed within 30 days following Park approval. All extensions must be in writing. Before you decide to use another Homesite as a guide, be aware that there are homes in the Park which may no longer conform to current landscaping standards. a) General Requirements. Landscaping at front street edge of property must be lawn or other approved, well maintained drought resistant landscaping. Other than lawn required in front street edge of Homesite, all plantings must be drought resistant and require low water usage. Landscaping must be kept clean and attractive, and not interfere with any other Homesite, access to any utility or structure, or obscure views of streets and driveways. Evasive plants such as morning glory are discouraged. Watering shall not be allowed to excessively wet streets or flood gutters. You are responsible for any loss or damage caused by any landscaping related activities. Low growing vegetable gardens, not exceeding 100 square feet, are permitted in the rear portion of the Homesite, provided it is neat and well maintained. No tall plants, such as corn or sunflowers, are allowed. No trees or tall shrubs may be planted without prior approval of management. All forms of statuary must be approved by management prior to installation.
b) Tree Maintenance. Management may trim, thin or remove a tree as it deems necessary for the health and safety of all. The maintenance or removal of any tree shall be done without any reduction or other adjustment in Rent, or requirement to replace.
c) Decorative Rock. Small, decorative rock, may be acceptable as landscaping, so long as underlayment fabric to deter weeds and edging to maintain a border, are used. The use of rock may be limited, depending on the overall lot size. It will be the responsibility of Homeowner to assure that there is always sufficient quantities of rock to cover the underlayment fabric.
d) Maintenance. Homeowner shall maintain Homesite landscaping in a neat and attractive condition. This includes mowing, trimming, watering, fertilizing, weeding and trash cleanup. You must arrange for someone to maintain your landscaping while you are absent from the Park.