Food & Flowers Start Here: Soils, Compost, & Mulch

Gloved hands holding pile of soil

The Importance of Soil Health

A thriving garden starts with healthy soil that facilitates plant growth, nutrient uptake, and overall garden vitality. Healthy soil is rich in organic matter, beneficial microorganisms, and essential nutrients, fostering strong root development and plant resilience. It also improves water retention and drainage, reducing the need for excessive irrigation. By supporting biodiversity, healthy soil also helps naturally mitigate pests and diseases. Gardener’s Supply is proud to offer a variety of potting soils, bulk garden soils, compost, mulch, and other amendments to create, replenish, and protect the fertile foundation of your future food and flowers.

Get to Know Gardener’s Supply Soils, Compost, & Mulch

Our soil mixes have superpowers! And because soil is so important, we offer several different kinds to best suit your growing goals. The descriptions below will help you choose—or, use our handy Potting Soil and Fertilizer Finder.

Transplant Mix

This mix helps them make a strong transition. A blend of peat and moisture-retaining coir reduces stress and helps young plants stay hydrated. SuperRoot Booster* promotes healthy growth.

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Organic

Self-Watering Mix

Optimal moisture control keeps plants properly hydrated, with SuperRoot Booster* to promote vigorous, healthy growth.

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A pile of soil with a blank white signboard on top

Coco Coir Seed Starting Mix

Derived from recycled coconut husks, coco coir passed our extensive seed-starting trials with flying colors, providing excellent germination rates and producing healthy, sturdy seedlings.

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Seed Starting Mix

SuperRoot Booster* promotes vigorous, healthy growth. Offers the perfect balance of drainage and wicking action to keep roots moist.

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Organic Seed Starting Mix

Bio-Blended Compost** stimulates seed germination. So rich in nutrients, there's no need to fertilize seedlings until you transplant them!

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Potting

Mix

A blend of peat, and moisture-retaining coir helps plants stay hydrated. SuperRoot Booster* promotes vigorous, healthy growth.

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Organic Potting Mix

With Bio-Blended Compost** to support healthy plant growth, abundant flowering and the tastiest fruits and vegetables. Made in the USA.

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Coco Coir Potting Mix

Use on its own as a planting mix for pots, planters, and window boxes, or as a peat-free alternative when you make your own potting mix.

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Self-Watering Potting Mix

Ideal for use in any type of self-watering planter, from hanging baskets to large pots. SuperRoot Booster* promotes healthy growth.

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Potting Soil Mixes

34-358

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Bag of Gardener's brand Greensand soil amendment on a white background

Greensand 0-1-6 Fertilizer

Roses and tomatoes are among the plants that thrive with greensand because it supplies marine potash, silica, iron oxide, magnesia, lime, phosphoric acid, and 22 trace minerals.

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Three packages of Gardener's organic all-purpose fertilizer in different sizes

All-Purpose Fertilizer

A slow-release, 5-5-5 granular organic fertilizer that gives plants balanced nutrients for vigorous root growth and improved water penetration all season long.

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Fertilizers

*SuperRoot Booster contains a naturally occurring mycorrhizae called Glomus intraradices, a superstar among mycorrhizae for the benefits it confers to host plants. You’ll find SuperRoot Booster in our Seed Starting Mix, Potting Mix, Self-Watering Potting Mix, Organic Self-Watering Potting Mix, and Transplant Mix.

 

 

**Bio-Blended Compost is a carefully balanced mix of expertly composted natural materials teeming with beneficial soil life—including abundant mycorrhizae—that ensures vigorous, resilient plants. You’ll find Bio-Blended Compost in our Organic Seed Starting Mix and Organic Potting Mix.

 

Discover other soil mixes from Vermont Compost Company, plant-specific fertilizers, and more.

Bulk Garden Soils & Mulch

Some of our garden centers offer bulk soils, compost, and mulch. Our carefully developed bulk garden soil mix is a custom blend of compost, sand, peat moss, pine bark fines, and silt. Need an extra boost? Our finely screened compost improves soil structure, reduces compaction, and promotes healthy root formation. Then, protect your hallowed ground with our dye-free mulches. We can even deliver right to your door! Call 802-658-2433 or click here to learn more.

Calculate the amount of soil for your raised beds & planters

Soil Calculator

soilCalculator

Calculate the amount

of mulch required to complete your project

Mulch Calculator

Plant growing next to a smartphone sticking in the soil, depicting technology and nature integration

Take the guesswork out of figuring out how much soil or mulch you need.

Soil & Mulch Calculators

Resource Library: Soils, Compost, Mulch, & Fertilizer

Soil Resources

There are many resources available to help gardeners looking to improve and maintain soil health. Websites like ours, local agricultural extension offices, and gardening books offer practical advice on soil testing, sustainable soil management practices, and more. By tapping into resources such as those listed below, you can learn how to sustain rich, resilient soil that feeds thriving plants and makes for long-term gardening success.

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Close-up of green rubber boots and a spade digging in moist soil

Regenerate Your Soil

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Person digging soil with a shovel in a garden

Small-Sized Secrets

to Great Soil

 

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Hands transferring soil into a terracotta pot on a gardening table

Super-Powered Soils

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Garden rake on fertile soil

Building

Healthy Soil

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Pouring soil into a jar for a soil test in a garden

Sand? Clay? Loam? What Type of Soil Do You Have?

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A magnifying glass examining soil layers and roots underground

All About Soils

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Person in rubber boots digging soil with a spade

Here's the Dirt:

Common Soil Terms

Compost Resources

Composting is a great way to enrich soil sustainably, and there are plenty of resources out there to guide the process. Look for content that covers starting and maintaining a compost pile or bin, composting methods including balancing green and brown materials, compost troubleshooting considerations, and applying compost effectively. Start with the below!

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Food scraps on snow against a wooden backdrop

Cold Weather Composting

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Cheesecloth bag being used to strain broth into a large white pot

How to Make

Compost Tea

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Woman in a yellow dress using a large black compost tumbler in a garden

Get "Rich" Quick with

Batch Composting

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Coffee beans and ground coffee on a white background

Compost Your

Coffee Grounds

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A woman and a young girl examining a green compost bin indoors

How To Master Worm Composting

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Man and child using a leaf shredder in a backyard

Tip: Save Time With

'Sheet Composting'

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Man in plaid shirt gathering autumn leaves outside a house

Making Leaf Mold

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Man composting kitchen scraps in a backyard compost bin near a garden

Compost

Troubleshooting Tips

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Compost tumbler in a sunny garden with a white picket fence and trees

The Simple Truth

About Composting

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Illustration of a farming scene with a pitchfork stuck in a mound of soil next to a tomato plant

Composting 101 -

All About Composting

Mulch Resources

The benefits of mulching include moisture retention, temperature regulation, and weed control. Mulch also improves soil health by adding organic matter as it decomposes. Local gardening centers like ours, extension services, and online resources such as those below offer guidance on everything from choosing the right mulch for different plants and climates to application techniques to mulching with cover crops.

Fertilizer and Amendment Resources

Organic fertilizers and soil amendments such as bone meal, blood meal, fish emulsion, and worm castings can boost soil fertility and accelerate plant growth. The best natural products improve nutrient availability, promote microbial activity, and enhance soil structure. The following articles speak to our tried and tested fertilizer findings.

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Close-up of fresh mown grass with a blurred background of a fence and a tree

Fertilize Your Lawn with Grass Clippings

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Two small bonsai trees and a jar of plant care product

How to Fertilize Seedlings

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Illustration showing how phosphorous, nitrogen, and potassium affect plant growth in soil

Fertilizer FAQs

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Two trays of lush green bean plants on a gray surface

Don't Forget to

Feed Your Plants

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Raised garden bed with dry, cracked soil

Give Old Potting

Soil New Life

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Person planting seeds in soil, with a bag of gardening product nearby

Fertilizer Basics