Pathways benefit from a thick layer of mulch. They both reduce weeds, and provide a clear delineation for where you want your guests to walk. Plus pathways can add a textural or colorful accent to the landscape.
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Compost can be used to amend existing soil to increase organic content and promote root growth for turf and plants. Bioretention facility planting soils often use compost as part of the soil blend to provide the proper organic matter for plantings in these areas.
Appropriate quantities of compost provide both a short term and long term positive impact on soil structure. With compost, the soils resist compaction in finer soils and provides greater drought resistance and water holding capacity in coarse, sandy soils. Soil porosity is key in soil structure and the coarse organic texture of compost creates an environment for better root development. Compost increases Cation Exchange Capacity (CEC) which is the ability for soils to retain micro nutrients for the plant to utilize and lowers nutrient leaching. Compost supplies many beneficial micro-organisms and nutrients to soils and growing media as well as bind and degrade specific pollutants – a strong characteristic in bioretention soil use.
The benefits of using compost for plants, the environment and completing the recycling loop in our communities are tremendous. As a plant organic and nutrient source compost works with soil biology naturally to increase soil organism activity. This relationship between planting soils and compost derived from green waste can support a wide variety of soil amendment needs for growing plants, stormwater management and soil erosion.
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Growth media for green roof projects require a well-balanced blend to support the vegetation required for either intensive or extensive green roofs. A well-planned green roof design combined with a properly sized bioretention facility maximizes the ability for your project to retain and filter storm water before it enters the local waterways.
Extensive green roof systems have a shallow profile, with typically 3-4 inches of growth media. The growth media is primarily mineral and organics (no soil involved) made up primarily of expanded shale and compost. Other components may include calcined clay (super heated), pumice, sand and occasionally perlite. These extensive blends are engineered as storm water management tools to support growth of largely sedums and delosperma (succulents which are able to retain large amounts of water and go for extended periods without rain or irrigation once established).
Intensive green roof systems have a deeper profile (6”+) to support a much broader plant palette including perennials, shrubs and trees for the deeper systems (up to 3 feet +/-). Components of intensive green roof systems include expanded shale and compost in addition to natural topsoil and sands. The design intent of the intensive green roof is more directed towards aesthetics than function. Typical applications include roof tops, over-structure projects, roof top terraces, hospital healing gardens and large plaza areas. Due to its deeper soil profile, intensive systems projects require much larger amounts soil compared to extensive green roof systems.
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State, local and private roadway projects require specific fill soils and sub-base which are compactable and stable. Our products can save you time, money and hassle throughout the entire project to ensure your materials meet specification.
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Many projects in Baltimore City now require stringent EPA testing of imported soils. Frequently when a contaminated site requires the removal and replacement of soils we are able to provide material which meets these specs. Our topsoils and compost have been approved for use on soil reclamation and soil replacement projects where contaminated soils have been removed or require amendment.