Japanese barberry shrubs are thorny (good for barriers ... The show is about a week long, and then you have a green blob the ...

Dense and thorny, Japanese barberry shrubs can be identified by their small ... yellow, purple and green. Some, he said, grow skyward in tall pillars, while others remain small and dwarf-like.

For more than two decades, Pia Van de Venne of Murrysville has been working to rid the municipality’s parks of invasive plants including barberry, garlic mustard and Japanese stilt-grass.