Assertion: royal fern | /r/CapableOf | grow 3 to 6 feet tall
Facets:
value: for an area
type: OTHER
Source sentences:
text: For an area that stays consistently moist, royal fern (Osmunda regalis), which grows in U.S. Department of Agriculture plant hardiness zones 4 through 9, grows 3 to 6 feet tall and 3 feet wide.