Assertion: saffron | /r/HasProperty | perennial plant
Facets:
value: since ancient times
type: TEMPORAL
Source sentences:
text: Saffron or Crocus (Crocus sativum) is a perennial plant native to Iran since ancient times and naturalized throughout the Mediterranean region and East Asia.
text: What’s more, Saffron crocuses are fully hardy and perennial, naturalising over the years to form larger and more impressive groups and, perhaps more importantly, a higher yield of saffron.
text: The saffron crocus is a perennial plant that grows from a rounded bulb (or corm).
text: Crocus sativus is a perennial tuberous plant which blooms in the fall.