New Orleans Comprehensive Zoning Ordinance
Printed: 5/15/2025 10:59:53 AM
23.5.J Species Diversity
Diversity among required plant material for on-site landscape is required. This provides visual interest and reduces the risk of losing a large population of plants due to disease. Table 23-1: Diversity Requirements indicates the percentage of diversity required based on the total quantity of species being used. For example, if a development requires forty-five (45) shade trees, no more than eighteen (18) trees nor less than five (5) trees can be of one (1) species, and there shall be a minimum of five (5) different species within the forty-five (45) trees.
Table 23-1: Diversity Requirements
|
TOTAL NUMBER OF PLANTS PER PLANT TYPE
|
DIVERSITY REQUIREMENTS
|
MINIMUM NUMBER OF SPECIES
|
|
MAXIMUM OF ANY SPECIES
|
MINIMUM OF ANY SPECIES
|
|
1-4
|
100%
|
Not Applicable
|
1
|
|
5-10
|
60%
|
40%
|
2
|
|
11-15
|
45%
|
20%
|
3
|
|
16-75
|
40%
|
10%
|
5
|
|
76-500
|
25%
|
5%
|
8
|
|
500-1,000
|
30%
|
5%
|
10
|
|
1,000+
|
15%
|
4%
|
15
|