Assertion: comfrey's leaf | /r/ObjectUse | used for slug control
Facets:
value: as a fertiliser
type: PURPOSE
value: as a composting aid
type: PURPOSE
Source sentences:
text: It has become an important plant for organic gardeners as its roots reach deep into the soil making it rich in minerals, while its leaves can be used for slug control, as a fertiliser and as a composting aid.