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.
Our Soil Improvement Products
Soils, mulches and fertilizers
available locally
as well as online!
Store Locator
Find our organic soils,
composts & fertilizers at
your favorite garden center!
Read our Blog
Get great advice and tips
on how to grow the
BEST organic garden!
Video Library
Watch our educational
"How-to" videos and learn
about our organic products!
Shop For Products by Category
Soils & Compost
Shop by category for Coast of Maine Soils & Composts
Mulch
Shop by category for Coast of Maine Mulch Products
Fertilizers & Amendments
Shop by category for Coast of Maine Fertilizers & Amendments
For Growing Cannabis
Shop for Growing Cannabis with Coast of Maine Products
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.
Buy Locally:
We believe in local retailers, to find the product you are looking for, visit our store locator
Buy online:
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.
Buy Online:
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
Buy Locally:
We believe in local retailers, to find the product you are looking for, visit our store locator
Buy Online:
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
Buy Locally:
Buy Online:
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.
Buy Online:
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
Buy Locally:
We believe in local retailers, to find the product you are looking for, visit our store locator
Buy Online:
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
Buy Locally:
Buy Online:
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
Buy Locally:
We believe in local retailers, to find the product you are looking for, visit our store locator
Buy Online:
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:
"I have a baby and a 2 1/2 year old. I grow what I can to feed the kids, and I use Coast of Maine every year...I try to grow everything organically. It is important for me because the kids are eating it, and it's nice to know where your food is coming from. "
Mom and Organic Gardener
Organic Gardener
"Coast of Maine is the one soil that I have to have every year...It's really the only organic garden soil that has good trusted ingredients that I can buy. You can't go wrong with it. It's great and people love it."
Melissa Higgins
Sprague's Garden Center Manager
"I have been blown away by the Fundy Blend! My garden has not had any weeds, and I haven't once needed to feed my plants because of all the nutrients and kelp in the Fundy Blend... It is amazing!"
Crystal Kovalik
Skillin's Greenhouse employee
"I need to sell quality... when my customers buy something from us, they know it will work. I can't take chances on average. That is why Coast of Maine is a staple here, because we think it is one of the best products out there."
Chris Kennedy
Kennedy's Country Gardens
"We absolutely love Penobscot Blend, because our customers have more success when they add it to what they are planting. Our landscape department finds that adding some into the hole with the trees they are planting helps the trees survival through the winter and cold."
Mary-Jo Bridge Palmer
Sam Bridge Nursery
"I use the Lobster Compost in my garden because it gives me the best tomatoes and greens. It lightens my soil and makes it much richer... I need as much help as I can get, and coast of Maine gives it to me!"
Kit Cornell
Wentworth's CustomerFrom Our Blogs - Gardening / House Plant
Green Gifts with Love
Your partner really wants a houseplant this Valentine’s Day. Enough hints have been dropped to let you know that a flaming katie would be warmly welcomed onto the windowsill right now. A watering can has been staged strategically in front of every faucet in the house as a not-so-subtle reminder, and your partner always seems […]
Succulents Without Tears
They’re kinky, they’re seductive, and they look like something out of Sci-Fi. You’ve always wanted a succulent, right? Well, we’re going to help you make it happen. But first, let’s dispel a few myths because succulents aren’t as high maintenance as you might think. In fact, they are among the easiest houseplants to host—you just […]
A User’s Guide to Amazing Amaryllis
You want them. Of course, you want them. Who wouldn’t be starstruck by huge bodacious trumpet-shaped blossoms blaring with voluptuousness? We’re talking about totally nondescript plump bulbs that suddenly send out promising flower buds in a snap and then pop into performance like you wouldn’t believe. And all this is staged in the middle of […]
Good Company
Eek! The landscape outdoors is paring down. Every day more plants shed their leaves and drop off the scene. We hear you: The loss of those layers is turning you blue. So, it’s time to seek solutions. You need to add volume indoors. Combo Containers How about bringing the concept of a layered landscape inside […]
Outside In
Autumn sort of sneaks up on you, doesn’t it? One week you’re dragging hoses outside in a heatwave to water all the plants on your porch. A few weeks later, you’re quickly running all those plants inside to protect them from predicted frosts. So sometimes, the process gets a little rushed. In fact, it’s frighteningly […]
Keeping Plants Frisky in a Drought
If we learned anything this summer, it was how to wield a watering can. Steamy and dry weather was the name of the game no matter where you garden. Meanwhile, we all tried our best to help our plantings survive through the season by taking water-wise routes. Smart moves make all the difference when the […]
