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Under the boardwalk: Allen Gardens new Sustainability Garden nearly done

susGardenNews from the Allen Centennial Gardens: The new Sustainability Garden, which will demonstrate rain, meadow and xeriscape gardens, nears completion with the elevated boardwalk, made of TimberTech composite “boards.” This week  4-6″ of a 3/4″ clean quartzite gravel will be spread as the surface substrate, around 1,000 perennials and about that many bulbs are ready for planting immediately thereafter. The project was funded by a Stanley Smith Horticultural grant.