Database for Species Factor, Density Factor, Microclimate Factor

The reference guide has some specific information about how to classify the density factor and microclimate factor. Those values are site specific. For species factor, I don't know of a one-stop shop to look up the water needs of specific plants. But there are a few good resources here on LEED User and then also the local "Extension" is a good place to track down information or local government or water utilities may have information as well. Here are a few links to what I'm talking about. http://www.coopext.colostate.edu/jefferson/natural/native.htm http://qcode.us/codes/sacramentocounty/view.php?topic=14-14_10-14_10_120&frames=on

The reference guide shows in table 1 some landscape factors for trees, shrubs, groundcover, etc. but in our project located in Mexico City a big part of our green areas are vegetation (Geranium, euphorbia pulcherrima, African lily, etc) which factor should we use? thank you in advance for your help.