Assertion: comfrey's nutrient | /r/HasProperty | difficult
Facets:
value: often
type: DEGREE
Source sentences:
text: ’s thick and tuberous roots create an expansive root system, allowing the plant to “mine” compacted soils for minerals and other nutrients which are often difficult for other plants to obtain.
text: ’s thick and tuberous roots create an expansive root system, allowing the plant to “mine” compacted soils for minerals and other nutrients which are often difficult for other plants to obtain.