A. 
The City Engineer shall prepare lists of trees acceptable for planting in the public sites of the city. Undesirable trees shall not be recommended for general planting and their use, if any, shall be restricted to special locations where, because of certain characteristics of adaptability or landscape effect, they can be used to advantage.
B. 
Only desirable, long-lived trees of good appearance, beauty, adaptability and generally free from injurious insect or disease shall be planted in public sites. The Shade Tree Commission, in conjunction with the City Engineer, shall review at least every two years the species, cultivars and varieties included on the approved list to determine if any should be removed for any reason or if certain new species, cultivars or varieties of proven dependability and value should be added.
Unless otherwise specified by the City Engineer, all medium to large deciduous tree species and their cultivars and varieties shall conform to American Association of Nurserymen Standards and be at least 1 1/4 inches to 1 1/2 inches in diameter six inches above ground level, and at least eight feet to 10 feet in height when planted. The crown shall be in good balance with the trunk.
A. 
Unless otherwise allowed for specific reason, all trees shall have comparatively straight trunks, well-developed leaders and tops and roots characteristic of the species, cultivar or variety showing evidence of proper nursery pruning. All trees must be free of insects, diseases, mechanical injuries and other objectionable features at the time of planting.
B. 
Where there is a tree lawn less than three feet in width, legal steps should be taken to obtain easement rights to plant beyond the sidewalk on private property. Such easements should contain provisions granting the city permission to select and plant such trees under the direction of the City Engineer and also include a provision whereby the property owner assumes full responsibility for the maintenance, removal of and liability for said tree.
C. 
Trees shall be planted at least 30 feet from street intersections and at least 15 feet from driveways and alleys.
D. 
No tree shall be planted closer than 10 feet of a utility pole.
E. 
Spacing of trees should be determined by the City Engineer according to local conditions, the species, cultivars, or varieties used, their mature height, spread and form. Generally, all large trees shall be planted 40 feet to 60 feet on center; all medium-sized trees shall be planted a minimum of 25 feet on center.
F. 
All planting on unpaved streets without curbs must have the special permission of the City Engineer who shall determine the tree's location so it will not be injured or destroyed when the street is curbed and paved.
A. 
Most small deciduous trees may be moved bare-rooted unless otherwise indicated. Roots of bare-rooted trees should be protected against drying out.
B. 
All coniferous trees shall be moved balled and burlapped. Balled roots should be prevented from drying out at the surface of the ball and protected against injurious freezing.
C. 
Pits dug for planting of bare-root plants shall be a minimum of 12 inches larger in diameter than the diameter of the root system so as to be of sufficient size to accommodate the roots without crowding. For balled trees, the pits shall be a minimum of 12 inches larger in diameter than the diameter of the ball of soil to allow proper backfill.
D. 
Plants shall be planted no deeper than previously grown, with due allowance for settling.
E. 
In poorly drained soil, artificial drainage shall be provided to properly drain the soil about the plant roots or tolerant species selected.
F. 
Acceptable topsoil, compost, peat moss or other acceptable soil mixture shall be placed about the roots or in the backfill around the ball. When the planting is completed, the entire root area shall be thoroughly saturated with water.
G. 
Excessive pruning at the time of transplanting should be avoided. The extent of top pruning should be based on the ability of the plant roots to function.
H. 
Trees shall be suitably wrapped and guyed, or supported in an upright position, according to accepted arboricultural practices. The guys or supports shall be fastened.