Dinner plate to mushroom

"Ron had caused a dinner plate to mutate into a large mushroom and had no idea how it had happened."

- On Ron's use during his Charms O.W.L

This spell is used to transform a dinner plate into a large mushroom. During Ronald Weasley's Charms OWL, he somehow managed to use this spell, instead of whatever charm he was supposed to have been performing, and had no idea how he'd done it.

Appearances

 * Harry Potter and the Order of the Phoenix