Wineberry, shown in this undated photo, is a raspberry native to Japan and China and naturalized in America. Wineberry's flowers aren't going to catch your eye, but its gracefully arching stems will.

Q: We have a flowering raspberry shrub (Rubus odoratus) that is five or six years old. It has always done extremely well until this year. Now, the edges on new, young leaves are curling under, while ...

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