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Vermont Compost Company’s primary goal is to provide the highest quality composts and potting soils to growers, enabling them to realize their plant growing goals. The performance of any compost is determined by the content and structure of the materials being composted. Correct media behavior depends on good process conditions and practices. We use the broadest range of appropriate ingredients to support bio-diversity. Using a “multi-manurial” suite of excretas—cow, horse, donkey, mule, chicken, and worm manures—as well as community food residuals, bedding hay, spoiled silage, and hardwood bark, we move towards imitating the complexity of successful natural systems. We make our compost on native soil surfaces amended to optimize compost process and intended to return to tillage in enhanced form if and when the need for the compost making diminishes or ends. Our manure-based compost is the main ingredient for all of our products—from our seed starting mixes to our nutrient booster and perennial blends. High performance composts demand excellent ingredients in correct proportions. We use the finest available to us.
We start out by blending raw manures, bedding, bark, and oxidized silage. Mature compost is added as an inoculum to guide the process. This blend of farm and forest sourced material is used as bulking to manage the carefully source separated rescued uneaten food from community schools, stores, restaurants and homes. The porous, carbon rich bedding, bark, and manure help to mitigate the odors and absorb the nutrient dense liquids associated with food residuals. The combined ration is placed in windrows inside simple high tunnels for our layer flock to forage on for feed. The tunnels allow the chickens to feed on warm windrows year-round, while also preventing crows and seagulls from traveling away with food scraps (this keeps the neighbors happy!). A complex sequence of metabolic processes are in motion; chickens tumble and agitate the mix searching for bugs, grubs, and bits of cooking food to feed on—all the while depositing their protein rich excreta. Worms come in and up from the soil around and below—further aerating the mix and leaving behind their valuable castings. Every five days or so, the pile is turned further down the hoop-house.
As the mixture of ingredients reaches the end of our feed houses, the mix begins to look homogeneous—food scraps are no longer identifiable, Temperatures have been above 131º for at least 15 days, and the pile has shrunk greatly in volume. The materials are now ready to begin maturing outside of the house. This completes the process of “tracking,” meeting the regulatory requirements defining compost within the National Organic Program (NOP). Though a pile can be called compost, legally, after fifteen days of sustained temperatures above 131º, this is really just the beginning of a several month aging process which provides our final products with the characteristics we expect of them. The final product has a fine, moist, dark, stable, and odor free consistency. It is rich in humus, free of any viable seeds, full of life—both bacterial and fungal—and is ready to provide living plants with everything they need to grow rapidly and with full health. Before selling our mature manure compost we add a small amount of the highest quality horticultural-grade Canadian sphagnum peat moss to aid in the screening, packing, shipping, and spreading of the final product. This further stabilizes the material and makes for a very manageable consistency.
While our composts are excellent amendments to soils, they are not usually appropriate for use as complete media in seedling trays, pots, or beds. They lack ideal mechanical structures to optimize water transport. To address these needs, we manufacture compost based products that are designed for germination and container growing situations. Our potting soils start with the blending of several different batches of mature compost, and the highest quality horticultural grade sphagnum peat moss. The compost-sphagnum blend is then mixed with specific ratios of other mineral, nutrient, and structural ingredients based on the designated purpose of the mix being made. Our formulas have been arrived upon through decades of research, experimentation, and innovation on the farm and in greenhouses as professional vegetable growers, lovers of plants and compost—as well as through the support and feedback we receive from our loyal friends and customers over the years. This care and attention to detail ensures that our products provide users with the best performing compost-based potting soils for use in organic plant growing. The results speak for themselves.