The Machete is an key item necessary to go through the smaller patch of flowers and enter the Witch's House.
The Machete can be found in the Rose Patch, marked by a silver light.
The Machete is used to cut the smaller patch of roses, thus leading to the Black Cat and the Witch's House. The in-game description for the Machete says "A good tool for cutting. Rusty and old."
Upon using the Machete, the Machete will break.