Assertion: comfrey's root | /r/CapableOf | break up heavy clay
Facets:
Source sentences:
text: The roots range to depths of 8 to 10 feet, bringing up nutrients from the mineral-rich subsoil, breaking up heavy clay and aerating the land with their channels.
text: Comfrey’s roots reach deep into the earth, breaking up heavy clay and creating channels for aeration and better water absorption.