Fertiliser

Fertiliser is a potion that, when poured on soil, causes plants to grow faster. Phials of it are sometimes found hidden in the Forbidden Forest, one of which had a path leading to it marked with a particular type of red mushroom. Brewing it requires dragon dung, bones, plimpy eyes, and dried kelp.

Instructions

 * 1) Crush dragon dung in pestle, add to cauldron and stir clockwise until potion turns blue.
 * 2) Crush bones with hammer, add to cauldron and stir anti-clockwise until potion turns yellow.
 * 3) Crush plimpy eyes in pestle, add to cauldron and stir clockwise until potion turns red.
 * 4) Slice kelp with knife, add to cauldron and stir anti-clockwise until potion turns green.

Appearances

 * LEGO Harry Potter: Years 1-4