The Best Soils for Raised Beds in Your Garden

Hello, my friend, hello again; today we come together to talk about The Best Soils for Raised Beds in Your Garden and hope the blog can help you.

The right soil is key to making your raised garden bed flourish, regardless of what types of plants you prefer.

For plants, soil provides another vital element. It doesn’t just deliver nutrients to hungry fruits, vegetables, and flowers; good garden bed soil increases the airflow around plant roots to avoid compaction and improve drainage as it retains moisture for basic hydration.

Gardening with raised beds provides more control over the soil. However, the best soil for raised beds depends on the plants you want to grow. Many soil types are suitable for a variety of uses, while others are more specific in their purpose. To bolster our own research, we interviewed Elizabeth Jones, the seed librarian at the Jefferson Public Library in Jefferson, Georgia, and owner of Excel at Gardening, who gave us her expert advice on soil. Read on for some of the top soils for raised beds and some things to keep in mind as you shop. 

1. BEST OVERALL: FoxFarm Happy Frog Potting Soil
2. RUNNER-UP: Sunday Natural Moisture Potting Soil Mix
3. BEST BANG FOR THE BUCK:Mountain Valley Minute Soil Compressed Coco Coir
4. BEST ORGANIC:Organic Plant Magic Compressed Potting Soil 
5. BEST TOPSOIL:Michigan Peat Garden Magic Top Soil
6. BEST COMPOST: Charlie’s 10-Pound Compost
7. BEST PEAT MOSS: Hoffman Canadian Sphagnum Peat Moss
8. BEST VERMICULITE: Ferry Morse Professional Grade Vermiculite
9. BEST FOR VEGETABLES:Coast of Maine Castine Organic Raised Bed Mix
10. BEST FOR HERBS AND FLOWERS: Miracle-Gro Raised Bed Soil

How We Chose the Best Soil for Raised Beds

We researched the most sought-after soil for raised beds in their respective categories and discovered that the best options are determined by their ingredients, quantity, versatility, and other special features included by top brands.

While searching for the best garden bed soil, we reached out to Teri Valenzuela, the natural science manager at Sunday, a nationwide lawn and garden care company. Her advice? “Look for ingredients like fresh compost or peat humus for good nutrient levels, vermiculite or perlite for aeration, and peat moss or coconut coir for moisture retention. These ingredients provide the right growing conditions for healthy plant growth and proper drainage.”

She adds that shoppers will want to “avoid mixes with heavier in-ground garden soil mixes, bio-solids containing contaminants, and excessive wood products. They may hinder plant growth by impacting drainage and nutrient availability.”

With these expert tips in mind, we made sure to include a wide range of soil recipes on our list of recommendations that meet these standards, avoiding poorer quality mixes. As such, many of our chosen mixes are formulated to provide drainage and aeration and select options can be used for indoor and outdoor plants, vegetables, fruits, flowers, and herbs. 

Whether you need 1 cubic foot or over 15 gallons of soil, the above list includes options that resist compacting, are pH-balanced, and can be used on existing soil with grown plants as well as seedlings. Many of our picks can be mixed with other soils to create a custom blend that works perfectly for your own plants.

Our Top Picks

Here are some of our top soil recommendations to help fill raised garden beds. There are specialized soils as well as general mixes to help plants thrive, including soils from brands long trusted in the gardening world. All you’ll need to do is slip on your gardening gloves, open up the bags, fill up your beds, refill your watering can, and get growing. 

BEST OVERALL

FoxFarm Happy Frog Potting Soil

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Product Specs 

• Ingredients: Earthworm castings, bat guano, and aged forest products
• Quantity: 2 cubic feet 
• Organic: Yes 

Pros

• Mycorrhizal fungi content promotes root development
• Excels at starting seeds and is also great for winter sowing
• pH-balanced product ideal for fruits, vegetables, and flowers

Cons

• Comes at a premium price and may not be cost-effective for filling a large container

The FoxFarm Happy Frog organic garden soil contains a mix of microbes with mycorrhizal fungi and sediment. The fungi content enhances the nutrient uptake of the root system by creating a symbiotic relationship with the root mass. Essentially, it expands the root’s reach, promoting their development. 

That fungi content gets balanced with sediment that maintains the light texture and aeration needed to let plant roots expand as they consume nutrients. The mix contains a pH balance for optimal growth that’s supportive of fruit, vegetables, or flowers. Keep in mind that the soil has been inoculated with mycorrhizal fungi, so there is a possibility to see white growth in the mix, which is normal.

Get the FoxFarm soil for raised beds at Amazon, Target, or Walmart.

RUNNER-UP

Sunday Natural Moisture Potting Soil Mix

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Product Specs

• Ingredients: Sphagnum peat moss, peat humus, coir, perlite, ground limestone
• Quantity: 20 quarts
• Organic: No

Pros

• Contains the nutrients ideal for repotting plants into containers and raised beds
• Also includes ground limestone for added nutrients
• Coir and perlite help drain and aerate roots for better plant growth

Cons

• Users will want to pair it with a fertilizer for best results

With ingredients like peat humus for nutrients, perlite for aeration, and peat moss for moisture retention, Sunday’s soil mix provides the right growing conditions for healthy plant growth and proper drainage. This is especially useful when used in a raised bed setting, where aeration and drainage are vital to plant success. 

This 20-quart bag of soil is suitable for both indoor and outdoor use and is especially great for repotting plants and herbs in containers. A final special ingredient in this product is ground limestone, which adds essential calcium and magnesium nutrients to the soil for optimal plant growth. Sunday does note to consumers, however, that this is not a substitute for fertilizer.

Get the Sunday soil for raised beds at Sunday.

BEST BANG FOR THE BUCK

Mountain Valley Minute Soil Compressed Coco Coir

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Product Specs 

• Ingredients: Compressed coco coir 
• Quantity: 15 gallons (from 1 block); other sizes available
• Organic: Yes

Pros

• Compact, lightweight, and easy to store until needed
• Available in multiple sizes, either as large bricks or smaller pucks
• Suitable for a range of flowers, plants, and herbs

Cons

• Coco coir is nutrient-poor, requiring supplements for better plant growth
• Retains moisture extremely well, which may not be suitable for plants preferring a faster-draining mix

Mountain Valley Minute Soil compressed coco coir fiber grow medium squeezes the growing medium down to a compact brick full of goodness. Made of raw coconut coir, this fibrous block expands to a light texture designed to aerate and it retains moisture. At the same time, it provides a nutritious boost for topsoil. 

Gardeners can rehydrate the entire block to create 15 gallons of growing medium or hydrate only the amount needed for a specific project. The compressed packaging stores easily and provides options for a wide range of gardening needs and uses. These compressed blocks come in several sizes to suit most gardener’s available storage space. 

Get the Mountain Valley soil for raised beds at Amazon or True Leaf Market.

BEST ORGANIC

Organic Plant Magic Compressed Potting Soil

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Product Specs 

• Ingredients: Coco coir, worm castings, and fertilizer
• Quantity: 12 cups (expands to 3 gallons)
• Organic: Yes 

Pros

• Holds 50 percent more water than regular soil; ideal for raised beds
• Can be used on existing soil as a nutrient boost
• Can be rehydrated as needed; makes for easy storage until needed

Cons

• Not available in multiple size options

Organic Plant Magic compressed organic potting soil for gardens and plants contains natural, organic fertilizer ingredients to feed and nourish plants. This compressed soil can be rehydrated and used as the nutrient layer or applied directly to existing soil without rehydrating. This dry, organic mix alone holds 50 percent more water than regular soil, which is one reason it works so well for raised beds. 

The soil contains natural coconut coir, worm castings, mycorrhizae, helpful bacteria, amino acids, and humic acids. These ingredients work together for a slow release of nutrients so that plants don’t get overwhelmed. This package requires 12 cups of water to create 2 pounds of compressed soil. The mixture then expands to create 3 gallons of usable healthy soil.

Get the Organic Plant Magic soil for raised beds at Amazon or Organic Plant Magic.

BEST TOPSOIL

Michigan Peat Garden Magic Top Soil

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Product Specs 

• Ingredients: Reed sedge peat and sand
• Quantity: 4.5 cubic feet 
• Organic: Yes

Pros

• Works well with heavy clay soils to help loosen the mixture
• Helps increase water retention in lighter soils 
• Can be used as a top dressing and to fill holes in lawns and gardens

Cons

• Must be mixed with other soil; it’s not designed to be used as primary planting medium 

Topsoil fills a raised bed rather than nourishing the plants in it. The Michigan Peat Garden Magic top soil does that with a mix of reed sedge peat and sand. For gardeners who are using dirt from the natural landscape, this garden soil mix can loosen heavy clay soils and improve the water retention of light, airy soils. 

Sometimes topsoils can arrive with twigs and debris that aren’t harmful but don’t help your garden. The Michigan Peat topsoil (usually) arrives without clumps or these surprise additions, sticking with pure ingredients. However, the topsoil is designed to be used as conditioner for heavy soil or mixed with other growing mediums, but not used on its own.

Get the Michigan Peat soil for raised beds at Amazon.

BEST COMPOST

Charlie’s 10-Pound Compost

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Product Specs 

• Ingredients: Chicken manure, biochar, organic grasses and organic crop production residue
• Quantity: 0.4 cubic feet
• Organic: Yes 

Pros

• Composted for 8 to 12 weeks, which is an ideal time for making nutrient-rich soil
• Powerful formula, yet it’s still safe to use in direct contact with plants 
• Affordable compared to other big name brands

Cons

• Made to be used as an amendment/natural fertilizer only; must be mixed with soil

Charlie’s Compost has natural ingredients composted and ready for plants to soak up nutrients. It contains a garden soil mix of chicken manure, cornstalks, forest products, hay, straw, clay, and microbe inoculants. Before being bagged, the ingredients are composted for 8 to 12 weeks, at which time they’re ready for application to the garden. 

The blend is designed to be mixed with other soils or as an additive around plants. If used in direct contact with plants, be sure to use it sparingly: It’s powerful enough to burn delicate plants. There have also been (rare) instances of bags arriving with ingredients that aren’t completely broken down. 

Get the Charlie’s Compost soil for raised beds at Amazon.

BEST PEAT MOSS

Hoffman Canadian Sphagnum Peat Moss

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Product Specs 

• Ingredients: Peat moss 
• Quantity: 10 quarts 
• Organic: Yes 

Pros

• Provides ample drainage and aeration; ideal for treating compacted soils
• Also adds great moisture retention, which raised beds usually require
• Relatively affordable bag can go a long way in large raised beds

Cons

• Designed to be mixed with heavy soil; not meant to be used as a primary growing medium

Hoffman Canadian sphagnum peat moss contains 99.8 percent natural ingredients, consisting almost entirely of natural peat. This mix helps break up compacted soils, aerate roots, and improve drainage. However, the peat also holds water for better moisture retention in a raised bed setting. 

This bag provides a big bang for the buck. It’s meant to mix with other soils, so even in a large raised bed, it can go a long way. Keep in mind that heavily compacted soils will require more peat to loosen the soil than light, airy soils.

Get the Hoffman peat moss at Amazon.

BEST VERMICULITE

Ferry Morse Professional Grade Vermiculite