I use bamboo poles for s'chach (yes, real bamboo poles). They're great, but I would like a little green up there, if I can get it. Some years we used branches from the tree that was growing over our sukkah (those branches needed to come down anyway), but they had bugs in them. Some years we used overgrown/passul aravos from our aravos bush, but those also will sometimes be buggy.
What plant can I buy for s'chach that will stay green the whole Sukkos, and not be buggy (or otherwise problematic, like leaves dropping down and stuff) ?
Best answers would be from personal experience.
Related questions: Which plants are most suitable for sukkah roofing? (= grow your own [not interested]) and What can I use for schach? (= general, I already know that)