It will help retain moisture without robbing your soil of nitrogen and help insulate the surface soil against excessive cold and heat that can otherwise damage plant root systems. Because Dark Harbor's barks are almost completely decomposed, it can be dug into your beds and garden in the fall, providing your soil a rich and immediate source of organic material.

We have named this blend for the picturesque island village of Dark Harbor on Isleboro Island in Penobscot Bay."

Pine and Spruce:
"We offer a complete line of 2 and 3 cubic foot traditional bark mulches - Hemlock, Pine & Spruce, Natural Cedar and Red Cedar. These are all double ground, fine-textured fresh bark mulches designed for consistent quality. Our Red Cedar and Hemlock mulches are enhanced with a small quantity of iron oxide tint, a safe, natural material that will not stain or wash off. Otherwise, no tints or colorants are used to enhance the natural beauty of either our Natural Cedar and Pine and Spruce. All four mulches are ideal for use around trees, shrubs and in play areas and walkways. Bark mulch helps insulate your soil, retain moisture during the heat of summer and suppress weeds. Remember, when mulching perennials or annuals consider using one of our enriching mulches."

I'm in the Boston area also if anyone wanted to know.