Organic Soil Amendments, Mulch, and More
Coast of Maine Organic Products was founded in 1996 with the simple idea that a healthy planet needs healthy soil to sustain life. From this idea, a love of gardening and a commitment to sustainable practices, Coast of Maine Organic Products has grown to offer what we believe are the most unique and effective organic soil amendments and mulch available.
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Featured Products
Liquid Squid Fertilizer for Indoor Plants
$20.99Liquid Squid Fertilizer for Indoor Plants ( 2-3-0 )
Uses: Promotes budding and blooming in indoor plants.
A truly remarkable fertilizer made entirely of squid. Intended to promote budding and blooming, this concentrated fertilizer also enriches the soil with plant-ready minerals, giving your plants a significant boost! Great for greenhouse and hydroponic systems and both indoor and outdoor applications.
Available in quarts.
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Stonington Blend Plant Food
$18.99Stonington Blend Plant Food ( 5-2-4 )
Uses: Fertilizer for containers, vegetable gardens, flower beds
Great for replenishing soil between grows in your raised bed!
Coast of Maine Organic Products Stonington Organic Plant Food is an exceptional granular organic fertilizer that will supercharge the biology of container gardens. It is made with lobster, crab, fish and kelp meal, plus worm castings and other natural ingredients. It is also high in calcium which helps promote plant vigor. It can be mixed into the soil for new beds or used to top dress existing plantings.
It is OMRI listed for use in organic gardens
Available in 4lb bags.
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Sprout Island Organic & Natural Seed Starter
$9.99 – $25.99Sprout Island Organic & Natural Seed Starter
Uses: Seed germination and starting root cuttings
A rich mixture of blended mycorrhizae, sphagnum peat moss, well-aged compost, perlite, lime, kelp meal, worm castings, and lobster meal. Designed specifically for germinating seeds and rooting cuttings, and growing them into healthy, disease resistant plants.
*We recommend cell packs sized 72 or larger.
It is OMRI listed for use in organic gardens.
Available in 8 Quart, 16 Quart and 2cf bags.
Target pH 6.2
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Quoddy Blend Lobster Compost
$11.99 – $12.99Quoddy Blend Lobster Compost
Uses: Planting amendment for conditioning flower beds and borders, vegetable gardens, herbs and annuals. Terrific for growing vegetables!
Coast of Maine Organic Products Quoddy Blend Lobster Compost is made with lobster shells, compost and sphagnum peat moss. It is a dark-brown, complex soil filled with everything your plants need for healthy growth. It drains well and is an ideal soil conditioner for existing beds that need reinvigorating.
It is OMRI listed for use in organic gardens.
Available in 8qt & 1cf bags.
Target pH 6.5
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Fish Bone Meal
$17.99Fish Bone Meal Organic Plant Food for Buds & Blooms (5-13-0) with 18% Calcium
Uses: A source of phosphorus, calcium, nitrogen and essential minerals for budding and blooming plants.
An exceptional organic fertilizer ideal for budding and blooming plants. Made from dehydrated fish bones, it is an excellent natural source of phosphorus, calcium, nitrogen, essential minerals and trace elements.
It is OMRI listed for use in organic gardens.
Available in 3lb bags.
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Bar Harbor Blend Organic Potting Soil
$9.99 – $20.99Bar Harbor Blend Organic & Natural Potting Soil
Uses: House plants, hanging baskets, window boxes, container gardens – Also terrific for growing vegetables!
Our great all-purpose potting soil is made with natural and organic ingredients such as lobster, kelp, compost, perlite, and sphagnum peat. It is designed for potting indoor and outdoor container plants. Water and fertilize less with this nutrient rich, compost based potting soil. It is OMRI listed for use in organic gardens.
Available in 8qt, 16qt, 1cf and 2cf bags.
Target pH 6.2
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Wiscasset Blend Earthworm Castings
$18.99Wiscasset Blend Earthworm Castings
Uses: Soil conditioning, top dress indoor container plants, compost tea – Great for vegetables!
Coast of Maine Organic Wiscasset Blend Earthworm Castings is a finely textured, supercharged vermicompost. It is a rich blend of the digested soil left behind by earthworms. This process makes the nutrients in the soil more available to plants, as well as adding improved water retention. The castings are odorless and finely textured, making it easy to top dress houseplants.
Available in 8 quart and 20quart bags.
Target pH 6.8
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Castine Blend Organic & Natural Raised Bed Mix
$12.99 – $19.99Castine Blend Organic & Natural Raised Bed Mix
Uses: Raised bed gardens, planter boxes and large container gardens. Grows amazing vegetables!
An enriched blend of fully cured, locally-sourced compost, peat, biochar, worm castings, dehydrated poultry manure, kelp meal, lobster meal, greensand, lime, and mycorrhizae. Great for growing healthy vegetables, herbs, and flowers.
It is OMRI listed for use in organic gardens. Available in 1cf and 2cf bags.
Target pH 6.5
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Learn more about Coast of Maine's newest soil amendments and mulch!
Coast of Maine's NEW Organic & Natural Planting Soils! - Soils designed specifically for planting Tomatoes & Vegetables, Roses & Flowers, and Acid-Loving plants!




$11.99
Coast of Maine Organic Products was founded in 1996 with the simple idea that a healthy planet needs healthy soil to sustain life. From this idea, a love of gardening and a commitment to sustainable practices, Coast of Maine Organic Products has grown to offer what we believe are the most unique and effective organic gardening products available. Here's what our customers think of our products: