Best Soil For Microgreens – 5 Incredible Options

Imagine a tiny forest of vibrant, nutrient-packed greens thriving on your windowsill with bursts of flavor and nutrition. It’s not a dream; it’s the world of microgreens, and the secret to their success lies beneath the surface – in the soil.

The quality of soil is an often-underestimated factor in microgreen gardening. The best soil for microgreens supports healthy growth and enhances your greens’ taste and nutritional value.

I’ve examined various soil products on the market, considering factors such as texture, nutrients, water retention, and overall performance, and have found 100% Natural Organic Microgreens Premium Potting Mix by Gardenera to be the best soil for microgreens overall. It comes conveniently re-mixed by hand and supplied in a bag I can easily store and use as needed.

Let’s look at other soils you can use and how they match up.

roots with microgreens on table

Product Reviews

Best Overall- Gardenera 100% Natural Organic Microgreens


This mix is all about quality and eco-friendliness, and it’s so exclusive it’s hand-produced in small batches. What made this my preferred growing medium was its magical ability to keep my soil moist and prevent my microgreens from becoming waterlogged. 

Thanks to the Canadian sphagnum peat moss, coconut coir, perlite, and worm castings as an organic fertilizer, my microgreens were thriving and jam-packed with goodness.

Plus, it’s so easy to use, even I didn’t mess it up! Whether you’re a gardening newbie or a seasoned pro, this mix has your back.

The best part? My microgreens have become mealtime superheroes, enhancing everything from salads to sandwiches to smoothies.

ariel view from microgreens in plastic containers

Key Features

  • Top-quality eco-friendly blend.
  • Handcrafted in small batches.
  • Optimal moisture and air balance.
  • Thriving and nutrient-rich microgreens.
  • Chemical-free for peace of mind.
  • User-friendly for all levels.
  • Versatile for diverse culinary creations.

Who’s It for?

Gardenera’s Organic Microgreens Premium Potting Mix is tailored for health-conscious food enthusiasts who relish adding microgreens to their daily meals.

Home gardening enthusiasts seeking a straightforward yet thriving cultivation experience will benefit from Gardeneras Organic Microgreens Potting Mix. 

Eco-conscious consumers prioritizing sustainability will appreciate using this product. This mix is perfect for culinary creatives who want to enhance their dishes with fresh microgreens.

Best Seed Starter- Espoma 8 Quart Organic

hands holding microgreens with roots exposed


I recently took my microgreens on a ride with Espoma Organic Seed Starter Premium Potting Soil Mix, and it packs a punch! Thanks to Mycorrhizae, this stuff is like a secret agent for your greens. Mycorrhizae forms a dynamic duo with your plant roots, making them nutrient-absorbing powerhouses. 

It’s all-natural and organic, which means my microgreens grow up in a chemical-free wonderland—a dream come true for every environmentally conscious gardener.

The texture of this mix keeps the soil moist without mold growth or turning your mini-greens into soggy swamps like some garden soil.

It’s pre-moistened, so you can skip the whole “wetting it down before planting” ordeal. Time-saver alert!

Lastly, the 8-quart size is manageable. You can start multiple microgreen batches without worrying about running out of your best soil. Plus, the resealable bag keeps it fresh for your next green adventure.

black container with microgreens growing

Key Features

  • Mycorrhizae for superhero-level microgreen vitality.
  • All-natural and organic, eco-friendly gardening made easy.
  • Perfect moisture balance prevents soggy microgreens.
  • Pre-moistened for hassle-free planting.
  • 8-quart size, just right for multiple microgreen batches.
  • A resealable bag keeps the mix fresh for future green adventures.

different color of microgreens

Who’s It for?

Espoma Organic Seed Starter Premium Potting Soil Mix is ideal for eco-conscious gardeners who want an all-natural and organic solution for their microgreens, ensuring chemical-free and sustainable growth. 

It’s a hit among microgreen enthusiasts who appreciate the convenience of a pre-moistened mix, making the planting process a breeze. 

This mix also caters to busy gardeners looking to start multiple microgreen batches without worrying about running out of soil.

Most Versatile- Soil Sunrise Expert Grade Seed Starting Mix


This mix is a true gem in the gardening world.Its 100% all-natural composition is hand-blended to perfection. No additives or chemicals are here, making it a perfect match for various heirlooms and organic seeds.

It’s specially formulated for starting herbs, vegetables, flowers, and grasses, making it a one-stop growing medium for various gardening needs. 

This soil structure boasts sphagnum peat moss, perlite, worm castings, coarse sand, coconut coir, and lime—a dream team for any gardener. Its soil structure provides the ideal balance of nutrients, drainage, moisture retention, and organic humus. My microgreens took off like rockets in this environment!

The 4-quart size is perfect for small to medium-sized gardening projects, and it’s excellent value for money, considering the quality you get. Plus, the easy-to-use loose blend means no struggling with hard bricks or pellets—scoop and sow.

green microgreens neutral background

Key Features

  • 100% all-natural seed germinating medium, no additives or chemicals.
  • Specially formulated for starting herbs, vegetables, flowers, and grasses.
  • Provides essential nutrients, drainage, moisture retention, and organic humus.
  • Ingredients include peat moss, perlite, worm castings, coarse sand, coco coir, and lime.
  • Convenient 4-quart size for small to medium gardening projects.
  • Hand-blended for consistent quality and results.
  • Easy-to-use loose blend, no hard bricks or pellets.
  • Suitable for winter sowing and fall crop seed starting.

greens and their roots and shoots

Who’s It for?

The All Natural Seed Starting Mix by Soil Sunrise is a must-have for avid gardeners who prioritize organics when growing microgreens. It’s the perfect choice for those who love starting seeds, whether they’re growing herbs, vegetables, flowers, or grasses.

This organic potting mix caters to gardeners who appreciate the quality of hand-blended, all-natural ingredients, seasoned gardeners, and beginners looking to nurture healthy growth with the convenience of a loose blend that’s easy to use straight from the bag.

It’s a top pick for seasoned gardeners and beginners looking to nurture healthy growth from the beginning of their plant’s life cycle.

Most Eco-Friendly- ZestiGreens Organic Coconut Coir Wafers


These Coconut Coir Soil Wafers are like magic sponges when growing microgreens. Just add water, and they puff up to 8 cups of excellent growing medium for the tiny roots of microgreens – say goodbye to schlepping heavy bags of soggy soil!

You get five 4″ coconut coir grow discs in a nifty reusable jute bag. These wafers stay fresh in their shrink-wrap cocoon and give you 8 cups of soil (10 quarts).

Whether raising microgreens, nurturing wheatgrass, pampering flowers, herbs, houseplants, or coddling veggies, it’s a preferred growing medium. And eco-friendliness? Coir’s got it in the bag – it’s organic, clean, renewable, and a pH champ.

microgreen shoots growing up

Key Features

  • Add water, and they expand to 8 cups of top-notch growing medium.
  • No more heavy lifting or hauling around soggy bags of potting soil.
  • Coco coir fibers ensure ample oxygen, reducing the risk of dreaded root rot.
  • Water and nutrient retention are like sponges.
  • The bonus jute bag includes five 4″ coir grow discs for convenience.
  • Versatile gardening for microgreens, wheatgrass, flowers, herbs, houseplants, and veggies.
  • It is an eco-friendly choice, organic, clean, renewable, and has a plant-friendly pH level, unlike acidic peat moss.

microgreens growing out of pot

Who’s It for?

Indoor gardeners growing microgreens or houseplants will appreciate their simplicity and convenience, eliminating the need to wrestle with heavy bags of potting soil.

For those who prioritize the health of their plants, these wafers prevent root rot thanks to the oxygen-rich environment coco coir provides. 

Professional growers also turn to coco coir for its exceptional water and nutrient retention capabilities, recognizing it as a top choice for their plants.

Most Convenient- Window Garden Expanding Organic Fiber Soil


I can’t help but rave about Window Garden’s Expanding Organic Fiber Soil – it’s regarded as the best soil for microgreens. These compressed discs of organic fiber soil are like magic – add a little warm water, wait a few minutes, and bam, you’ve got nutrient-rich soil ready for growing microgreens.

Its ability to promote fast, easy growth works like a charm for microgreens.

The unique natural fibers ensure an abundant oxygen supply to the roots, preventing the dreaded root rot that often spells doom when growing microgreens. Well, a big part of it is the soil quality, and this product provides optimal oxygen and moisture for long-lasting, healthy plant life.

I also appreciate that it’s used by professionals worldwide – top growers are switching to this Fiber Soil because it flat-out works. Plus, Window Garden’s commitment to organic, eco-friendly soil makes me feel like I’m doing my part for the planet. It’s peat-free, renewable, and reusable – a win for me and our habitat.

purple microgreens white background

Key Features

  • Fast growth, ideal for all gardeners, supports a range of plants.
  • Oxygen-richness prevents root rot, a common issue with traditional soil.
  • Promotes healthy, longer-lasting plants.
  • They are trusted by top growers and are eco-friendly.
  • Conveniently packed, no more heavy soil bags, easy storage.
  • Renewable and reusable, it is suitable for plants and the planet.

roots and microgreens side view

Who’s It for?

This Expanding Organic Fiber Soil by Window Garden is a game-changer for plant lovers who want hassle-free, eco-friendly gardening. 

It’s perfect for everyone, from beginners to experienced gardeners, making growing microgreens a piece of cake. If you’re tired of lugging heavy garden soil bags, this convenient and oxygen-rich soil is your go-to choice. 

It’s also a hit with professionals worldwide, aligning with sustainable gardening practices and providing longer-lasting plant life.

Step-by-Step Buying Guide

slight part of microgreens and white background

Determine Your Microgreen Needs:

Different microgreens may have varying soil requirements, so knowing your plant selection is crucial.

Check the Soil Type:

Look for a potting mix or soil designed explicitly for microgreens or seed starting. It should be well-draining and lightweight to encourage healthy root development. Look for terms like “seed starting mix,” “fine-textured,” and “sterile” to ensure it’s suitable for microgreen cultivation.

Organic and Chemical-Free:

If you prefer organic and chemical-free gardening, seek soil mixes labeled as organic and free from harmful chemicals or pesticides.

Moisture Retention and Aeration:

A good microgreen soil should strike a balance between moisture retention and aeration. It should keep the seeds and roots moist without becoming waterlogged.

pH Level:

Check if the soil mix has a suitable pH level for microgreens. Most microgreens thrive in a slightly acidic to neutral pH environment.

Nutrient Content:

While microgreens don’t require heavy nutrient-rich soil, a mix with a mild nutrient content can provide an initial boost for your seedlings.

Quantity Needed:

Estimate how much soil you’ll require based on the microgreens you plan to grow. Some brands offer various package sizes to accommodate different needs.

Price and Budget:

Consider your budget when choosing a soil mix. While premium blends can be more expensive, they may offer better results, so weigh the cost against the quality.

Check for Additional Features:

Some soil mixes have added features, such as moisture-retaining polymers or mycorrhizae, which can benefit microgreen growth. Evaluate whether these features align with your needs.

Consider Sustainability:

If eco-friendliness is a priority, look for soil mixes that use sustainable sourcing and packaging materials.

Trial Small Quantities:

If you’re trying a new soil mix, consider purchasing a small quantity to test its suitability for your microgreen growing needs.

Purchase from Trusted Retailers:

Buy from well-known and reputable gardening supply stores or online marketplaces to ensure product authenticity and quality.


What type of soil is best for microgreens?

The best soil for microgreens is a well-draining, lightweight, and fine-textured potting mix or seed starting mix. It should be sterile and preferably organic, free from pests and diseases.

What do microgreens grow best in?

Mediums like coconut coir, hydroponic mats, or seed-raising soil are the best soil for microgreens. These mediums support the tiny plants, retain moisture, and offer essential nutrients for growth.

Can you use soil to grow microgreens?

Soil is a common and suitable medium for growing microgreens. It provides plant stability, retains moisture, and offers necessary nutrients. Ensure you choose a well-draining, fine-textured potting or seed-starting mix.

Do microgreens like soil or mat?

Microgreens can thrive in both soil and mats. Soil provides a more traditional growing medium with added nutrients, while mats offer a soilless, cleaner option. 

Can I grow microgreens without dirt?

Yes, you can grow microgreens without soil. Soilless options like hydroponic mats, coconut coir, or even paper towels can be used. 

What can I use instead of soil for microgreens?

Instead of soil, you can use alternatives like hydroponic mats, coconut coir, perlite, vermiculite, or even paper towels to grow microgreens. 

Sifting Through the Soil Smorgasbord: The Cream of the Crop in Microgreen Soil!

Gardenera’s potting mix impresses on all fronts. It’s meticulously crafted with natural ingredients, offering impeccable drainage, optimal moisture retention, and essential nutrients for your tiny greens. Plus, its eco-friendly and organic composition ensures the health of your microgreens and the planet. 

But let’s remember our second-place contender, the Espoma Organic Seed Starter Premium Potting Soil Mix. While it may not clinch the top spot, it’s a close runner-up. It offers a clean and organic environment for your microgreens, setting them on a path to flourishing. Its user-friendly nature and budget-friendly price tag make it an excellent choice for those looking to dip their toes into the microgreen gardening world.

Ready to Discover The Dirt on More Soil Types?

Our care pages are jam-packed with insights. Unravel the mysteries of watering without drowning your greens, and learn how to make your plants blossom with joy!

Explore our virtual garden and let your inner botanist run wild! 

Got questions, quandaries, or just want to brag about your blooming successes? We’re all ears! Reach out to us, and we’ll be your trusty plant hotline! 

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Alex Tinsman

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