Barberry can be composted but bittersweet needs to be bagged or tarped
Removing Barberry is important because it outcompetes native seedlings and also secretes chemicals that kill native plants. When you pull out Barberry you can compost the waste, making sure that the roots are exposed and dry out. It actually provides shelter to birds and wildlife while it degrades, too. This is a picture of Troy Weldy, Senior Conservation Manager, The Nature Conservancy of New York, supervising the removal of invasive species and planting of natives at the Conservancy’s Mount Holly Preserve. Unlike Barberry, Bittersweet is even more aggressive and needs to be bagged or tarped with heavy plastic to reach temperatures high enough to degrade it.
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