Assertion: blueberry's leaf | /r/CapableOf | become tinged
Facets:
value: with purple
type: OTHER
value: with red
type: OTHER
Source sentences:
text: Blueberries are fairly cold hardy, growing comfortably within U.S. Department of Agriculture plant hardiness zones 3 through 8, but unseasonably low temperatures can cause leaves to become tinged with red or purple.