Assertion: button fern | /r/HasProperty | grown as houseplant
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Also called button sword fern or erect sword fern, lemon button fern is a frost-tender perennial that's usually grown as a houseplant, but also grows outdoors year round in U.S. Department of Agriculture plant hardiness zones 10 through 12.