Rhododendron

"Harry could see, out of the corner of his eye, Scrimgeour squinting at him, so he pretended to be very interested in a gnome that had just poked its head out from underneath a frozen rhododendron."

- Description.

Rhododendron is a genus of shrubs, with large and colourful flowers.

The Weasley family kept rhododendrons in the yard of the The Burrow. On Christmas, 1996, these bushes were frozen and infested with gnomes.

Appearances

 * Harry Potter and the Half-Blood Prince