For vegetation, I just open the frond door and go for a "hunting" to garden
I used wide gras leaf, for vines some rust and crushed dry leaf (various - I have about ten boxes, every i diferent color), moutain phloks (it's a flower) for large grass, some of them dryes (they became dark) and painted with gloss and some of them as "fresh", just after I've cutted them off I put them into floor glosser. They keep shape and color for some time, later they dryed and looks nasty... but you can change them for photos or competitions
, finaly I used various mosses.
Hope helped a bit.