Picking the Right Soil for Your Marijuana Plants

potting soil for marijuana plants

Container gardening for cannabis is a fun and easy way to fill your home or patio with plants. There are hundreds of marijuana seeds autoflowering feminized that are suitable for containers and a vast variety of choices of best potting soil for marijuana plants. To find the best potting soil, you need to know what you are planting, the ingredients and nutrients in the soil, and the overall quality of the potting soil for marijuana plants. This is why we’ve compiled this list in picking the right soil for your marijuana plants for happy and healthy plants.

Feminized Marijuana Seeds Autoflowering Product FAQ

Potting soil is soil that is specifically mixed for container gardening for marijuana seeds autoflowering feminized.

Unless otherwise stated by the manufacturer, potting soil does not work well for plants that are in the ground. Porosity is the amount of water that the soil retains. Some plants need excellent drainage while others like the soil to be moist.

According to Steve DeAngelo, buffering capacity is the soil’s ability to resist a change in pH and how high or low the soil will go. The lower it goes, the more acidic the soil gets. The higher it goes, the more basic or alkaline the soil gets.

What Are the Characteristics of the Best Potting Soil Mixes?

The characteristics of a good potting mix include:

  • Free of pests or sterilized soil
  • Non-shrinking when dry
  • Suitable pH levels and buffering capacity
  • Suitable porosity levels
  • Can be stored
  • Not too heavy for lifting
  • Not too light or it will erode or blow away
  • Easy to water or re-wet
  • Do I Need a Specialized Potting Mix?

Yes, and no; specialty potting mix is an excellent way to make sure your more difficult to care for marijuana seeds autoflowering feminized are getting the nutrition they need, but regular potting soil can still be the best potting soil when you intend to add minerals or fertilizers to your mix. Which you choose depends on your needs.

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How We Reviewed

We reviewed several products to come up with the best potting soil mixes available for marijuana seeds autoflowering feminized. We based this list on the soil’s ease of use, features, ingredients, nutrients, density, overall quality, and price. We also looked at individual reviews and second party user reviews.

FoxFarm Ocean Forest Potting Soil


FoxFarm Ocean Forest Potting Soil is an excellent choice for container gardening, seeds, and seedlings for marijuana seeds autoflowering feminized. You do not need to mix it with anything else, and it is ready to use.

Unfortunately, there may be an excess of organic chunks in the soil, so you might want to break it up a bit if you are using it for seedlings. Due to the organics in the soil, it could heat up as the organics decompose if it is left in direct sunlight. The ocean forest blend of potting soil is one of the best potting soil for marijuana plants blends for beginners and those who do not have a lot of time to mess with balancing soil before planting.

The exact nutrients are not listed, but it is a nitrogen-free soil that does not need food or fertilizer for at least 30 days. It already contains fertilizers.
It is a loose and airy soil base with organic nutrients.
Buffering Capacity
The soil pH ranges from 6.3 to 6.8. It is slightly acidic. Total buffering capacity is not listed.

Quality Ingredients

FoxFarm Ocean Forest potting soil contains:

Bat Guano
Crab meal
Earthworm castings
Fish emulsion
Sphagnum peat moss

Espoma AP2 Organic Potting Mix


Espoma AP2 Organic Potting Mix is a unique blend of proprietary fungi and traditional soils and fertilizers. It improves transplant and growth success and increases the ability of the plant to use the vital nutrients in the soil.

The Epsoma formula does not attract insects or parasites as some other potting soils do, and it comes from a small family-owned business, not a large multinational corporation. Some users report that the soil does not retain moisture as it should and is very loose.


A few of the basic nutrients and active ingredients in the Espoma AP2 Organic Potting mix are:

  • Ectomycorrhizal Fungi
  • Rhizopogon amylopogon
  • Rhizopogon fulvigleba
  • Rhizopogon luteolus
  • Rhizopogon villosulous
  • Pisolithus tinctorius
  • Glomus intraradices
  • Glomus mosseae
  • Glomus aggregatum
  • Glomus etunicatum
  • Nitrogen
  • Phosphate
  • Potash
  • Porosity

This soil has a limited porosity. It is known for using less water which indicates that it retains water. Be careful when adding water to the pot while using this potting soil for marijuana plants.

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Buffering Capacity

The exact buffering capacity is not listed, but it is known to be a bit on the alkaline side, meaning its pH is above 8.

Quality Ingredients

  • Epsoma AP2 Organic contains a blend of:
  • Peat moss
  • Peat humus
  • Espoma’s Myco-tone a proprietary blend of fungi
  • Worm castings
  • Perlite

Miracle-Gro Potting Mix


Miracle-Gro is a trusted name in gardening supplies, fertilizers, and potting soil mixes. They are one of the biggest companies that produce these products. Their potting mix is specifically formulated for container gardening. You should not use their potting soil for in-ground gardening because it will throw off the overall balance of the soil.

Their proprietary formula is used by an amateur, beginner, and professional gardeners alike. The only problems noted are the smell, the fact that it can attract flies, and it is non-organic.


It does not list nutrients for this product but sulfur, nitrogen, and phosphate are present.


Miracle-Gro does not list its porosity, but it does contain Perlite; many people state that it is too dense.

Buffering Capacity

Miracle-Gro does not list its buffering capacity.

Quality Ingredients

The ingredients in Miracle-Gro Potting Mix are:

  • Ammonium Nitrate
  • Ammonium Phosphate
  • Calcium Phosphate
  • Compost
  • Perlite
  • Potassium Sulfate
  • Sphagnum Moss

Hoffman 10404 Organic Cactus and Succulent Soil Mix


Hoffman 10404 Organic Cactus and Succulent Soil Mix is a specialty soil. Although it may be useful for other types of plants, using it for anything but cacti and succulents is not recommended. It is completely organic which is both a benefit and drawback. The benefits are that there are no additives or pesticides. The drawbacks are that it is not sterile and may contain bugs or attract them. It is ready to use, but most users recommend sterilizing it first so that you do not bring bugs into your container gardening.


Specific nutrients in this mixture are not listed. They do state that it has all the nutrients for cacti and succulents.


This soil is very porous and does not hold a lot of water.

Buffering Capacity

Buffering capacity and pH are not listed. It does state that it is properly balanced for succulents and cacti.

Quality Ingredients

The ingredients of Hoffman 10404 Organic Cactus and Succulent Soil Mix are combined specifically for cacti and succulents. These ingredients are:

Canadian sphagnum
Peat moss
Reed-sedge peat

Black Gold Natural & Organic Potting Soil


Black Gold Natural and Organic Potting Soil make the best potting soil list because of its versatility and quality. It is one of the only certified organic potting soil mixes. It has excellent moisture retention and uses multiple types of fertilizers and nutrients to promote growth. The only issues noted are that it may contain gnats, and, because it retains moisture, over-watering could grow fungus.

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Specific nutrients are not listed.


Since the potting mix remains moist, it has very low porosity and retains water.

Buffering Capacity

There are no notes about this potting mixes buffering capacity.

Quality Ingredients

This rich mix is fortified with:

  • Earthworm castings
  • Organic fertilizer
  • Perlite
  • Pumice

Michigan Peat 5720 Garden Magic Potting Soil


Michigan Peat 5720 Garden Magic Potting Soil is a particularly dark blend of soil. It is thick and heavy, so it retains moisture well and is excellent for moisture-loving plants. The moisture content can be difficult to deal with if you over water. Michigan Peat 5720 makes the best potting soil list because it works well for both outside and inside container gardening.


There is no information about the nutrients listed.


Due to the thickness of the soil, it is not very porous, and over-watering is a possibility. Be careful when watering plants using this product.

Buffering Capacity

There is no information about this soil’s buffering capacity listed.

Quality Ingredients

This potting soil contains:

  • Sand
  • Reed Sage Peat
  • Perlite
  • Other fillers and soil compounds

Sun Bulb Better-Gro Special Orchid Mix


Sun Bulb Better-Gro Special Orchid Mix is specifically formulated for growing one of the more temperamental flowers. Orchids are known for their finicky temperament and difficulty level. Sun Bulb takes the confusion out of fertilizing and growing orchids by offering this potting mix that is designed for your orchids.


Sun Bulb does not list specific nutrients.


Porous enough to keep orchid roots dry and aerated.

Buffering Capacity

There is no information about buffering capacity.

Quality Ingredients

Some of the ingredients in Sun Bulb Orchid Mix were hand-selected by award-winning orchid growers. These ingredients are hardwood charcoal, sponge rock, and western fir bark.

The Verdict

Each of the soils listed on this best potting soil list for autoflowering feminized seeds is well suited for container gardening. From here, it is up to you to weigh the positives and negatives listed and choose the perfect potting soil for your gardening needs. Keep in mind, some of the potting soils are natural, while others are not, and some may attract flies and bugs. Typically, the more natural the potting soil is, the more likely it is to attract bugs. Select the best potting soil that suits your experience level, time restraints, and preferences. You cannot go wrong with any of the potting soil for marijuana plants on this list.

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