Olive trees. For those that are allergic, they can be brutal. Messy, pesticide sprayed high maintenance trees that go along with ornamental oranges in my mind of silly fruit baring trees planted in the southwest! BUT, if you do not spray them , and fertilize them and bother to go out of your way to pick and pickle them… delicious home grown , home made garlic olives = MAJOR yum for months. So as the temperature is starting to feel human here, and with LOTS of urban farming things to do outside ( beside the rest of life to dos/ work and … did I say hiking anyone ?) picking and pickling olives is on my timely to do list ! Snooze you loose.