New Orleans Comprehensive Zoning Ordinance

Printed: 7/21/2024 8:21:19 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