Assertion: valerian's leaf | /r/HasProperty | harvested
Facets:
value: twice a season
type: TEMPORAL
value: usually
type: DEGREE
Source sentences:
text: Leaves are harvested as the plant comes into flower.
text: Leaves and flowers can be harvested as required.
text: Leaves are usually harvested twice a season, starting in the second year.
text: Flowers and leaves can be harvested as required.
text: Leaves are harvested as required and used fresh or dried.
text: Leaves can be harvested as required, and whole plants should be cut when in bloom.