Assertion: canna | /r/HasProperty | safe
Facets:
value: in usda hardiness zones
type: LOCATION
value: over winter
type: TEMPORAL
value: in the ground
type: LOCATION
Source sentences:
text: In USDA hardiness zones 7 or higher, your cannas should be safe in the ground over winter, but to help protect them from cold, wet winter weather, spread a mulch over the growing site after the foliage has died down naturally.