"Noggin: Growing" is a bumper based on the Oobi shorts. It aired between shows on Noggin from 2000 to 2002. It is longer than most of the other commercials (30 seconds long).
It was part of a series of bumpers. "Bee," "Love," and "Surprise" are the only other ones that have been found.
The bumper is set in a flower garden. Oobi shows up, holding a watering can. He waters some of the flowers, then walks over to the Noggin logo. He pours some water into it and watches. Mechanical flowers raise out of the "head" of the logo.
The garden set from this bumper is the same one from the "Nature!" short.