You will find this an invaluable website: The Bureau of Street Services' (BOSS) Urban Forestry Division has everything you need to know about Los Angeles' giant urban forest. Find out what to do with your green waste, how long before the trees on your block are pruned again, and much more. Did you know that the Deodar cedars on Los Feliz between Riverside and Western are protected as cultural monuments? Didn't think so. Ok, maybe this guy did, but the rest of you didn't.
UPDATE: I was joking about city nerd in that last sentence, but it turns out he or she already blogged the Urban Forestry Division. Nice work!
Photo by wildbell