"This gallery contains time lapse movies of fungi, molds, bacteria, slime molds and insects of interest to plant pathologists." Be sure and check out the peach and plum, Homer Simpson growing "hair", a rotting book and mushrooms growing and dying.
Various Japanese plants (and fungi) spring to life in Omni/ScienceNet's "Action Plant" series of time-lapse videos shot in Kōchi prefecture.
So bored you could watch plants grow? Okay, start with Corn [0:35] and Radishes [0:46]. [more inside]
Plants in motion Time-lapse movies of plants doing plant-like things, such as growing, nutating, opening up, and being smelly. [requires quicktime]