Trees planted in compliance with the requirements of § 208-2200 shall have most or all of the following qualities. The trees recommended in Section B-10 represent the best combinations of these characteristics.
1. Hardiness.
a. Resistance to extreme temperatures.
b. Resistance to drought.
c. Resistance to storm damage.
d. Resistance to air pollution.
e. Ability to survive physical damage from human activity.
2. Life cycle.
a. Moderate to rapid rate of growth.
b. Long life.
3. Foliage and branching.
a. Tendency to branch high above the ground.
b. Wide spreading habit.
c. Relatively dense foliage for maximum shading.
4. Maintenance.
a. Resistance to pests.
b. Resistance to plant diseases.
c. Little or no pruning requirements.
d. No significant litter problems.