as far as I am aware, it is a filter list only and doesn’t have ability to sort it. The only other potential solution would be to have seperate projects for each place, and then combine them with an umbrella project, similar to what the CNC does:
https://inaturalist.nz/projects/city-nature-challenge-2021
This has the advantage (or disdvantage) of strongly demarcating each individual garden, which you may or may not want to happen.
I think the only confusion for the “two lists” would be if there were changes and they were not mirrored into the formatted description list. Outside of that, is there really a need to have each place listed in a formatted way? You describe them adequately in the main description (Community Gardens in DC), and if you got rid of all the weird periods in the names of the places, they would be able to be found easily enough in the list if someone was looking to see if a particular one was included. If you do mirror the list manually into the description, it would allow you to more economically display the list, such as:
DC Community Gardens included in this project:
Benning, Hillcrest, Kalorama, Langdon Youth, Lederer, LeDroit Park, Lovejoy, Marvin Gaye, Mother’s Peace Garden, Noyes, Palisades, Bruce Monroe, Douglass, Edgewood, Emery, Euclid Street, Ferebee Hope, Fort Greble, Fort Stanton, Fort Stevens, Friendship, Hamilton, Harry Thomas
note, I haven’t sorted alphabetically, but you could easily do so, or even group them by area or whatever.