Assertion: alder's seed | /r/HasProperty | ripe
Facets:
value: in a cold frame
type: LOCATION
Source sentences:
text: Stratify seeds warm for 90 days, then stratify for 180 days at 40º (4º C), or sow as soon as seeds are ripe in a cold frame.
text: Stratify seeds warm for 90 days, then stratify for 90 days at 40ºF (4ºC), or sow as soon as seeds are ripe in a cold frame.