Does anyone know hwere I may aquire stock footage of stop motion animation of various flowers blooming??

Dont know but maybe you find here something:

http://www.revostock.com/

You might want to try this as well.

http://www.surcat.com/

This site is basically a service that sends your footage request out to all those in the stock licensing biz. You might not get a response right away, but it's a start.

http://footage.net/