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Best Soil for Cannabis

Last Updated: October 12, 2021
Roy Stevens
Product Review by Roy Stevens

Cannabis, like all other plants, thrives from an ample supply of water, oxygen, and nutrients. These three base components are responsible for your crops’ overall health, growth rate, and final yield.

Of these three factors, cannabis soil composition is one of the most easily modified to suit the needs of cannabis crops. Due to this, cannabis soil mixtures are a booming industry.

Although the nutrients themselves aren’t altered, they are added in specific amounts that promote healthy growth for cannabis plants. Without these pre-made cannabis soil mixes, cultivators would be left to compose their own cannabis soil.

Pre-made cannabis soil mixes allow beginners and professionals alike to jump into the fast lane for growing marijuana plants. You’ll find everything your plants need in these weed soil mixes, such as beneficial bacteria, fungi, macronutrients, micronutrients, vitamins, and more.

Furthermore, cannabis soil mixes provide a more natural form of growth, as compared to the hyper-accelerated growth of hydroponics or aeroponics.

We’ve sifted through countless cannabis soil brands to find you the best soil for cannabis. Whether you’re searching for an organic soil solution or an all-in-one potting soil mix – we’ve got your plants covered so they can grow on cruise control, so carry on reading to find out the best soil for growing weed!

Our Reviews
1

Coast of Maine - Platinum Grower's Mix, Super Soil

Coast of Maine is a boutique soil mix brand. Their Platinum Grower’s Mix is intended for growers that don’t want to spend additional money on pH monitors and associated products.

Coast of Maine’s Platinum Grower’s Mix is a stand-alone organic soil mixture that contains mycorrhizae, kelp meal, fishbone meal, lobster compost, alfalfa meal, and worm castings. This organic soil mix is jam-packed with everything your plants need to thrive.

However, all of these high-quality ingredients come in at a hefty price. If you’re willing to stomach the bill, you’ll find a hearty harvest of aromatic and cannabinoid-rich flowers come harvest time.

Although Coast of Maine’s Platinum Grower’s Mix is expensive, it performs exceptionally well. This is one of the best soil mixes for cannabis we’ve seen, and it’s highly suitable for both beginners and professionals alike.

Pros

  • High-quality organic ingredients
  • No need to pH adjust
  • No supplements needed
  • Grows cannabis plants from seedling to harvest

Cons

  • Doesn’t contain perlite for optimal drainage
  • One of the most expensive brands on the market
  • May contain fungus gnats
2

FoxFarm Happy Frog Potting Soil

Fox Farm’s Happy Frog Potting Soil is one of the best and highly rated organic soil for cannabis plants. It’s perfect for seedlings and young plants because It contains mycorrhizal fungi and other beneficial microbes.

The nutrient source of Happy Frog stems from bat guano, earthworm castings, and forest products, such as wood chips. There are enough nutrients to last an entire cycle, from seedling to harvest.

Fox Farm didn’t overdo the nutrient content for a very specific reason, which was not to burn your plants. Many other soil brands create “hot” soil mixes by placing an overly-high nutrient content, but this is not the case with Fox Farm’s Happy Frog Potting Mix.

This is one of the best potting soil mixes for cannabis, especially for beginners. This is also the best soil for cannabis seedlings because they don’t require a high level of nutrients. If you’ve been looking for a gentle cannabis-specific nutrient mix – this is it.

Pros

  • An ideal composition that doesn’t drain too fast
  • Perfect soil for seedlings to mature cannabis plants
  • Comes loaded with worm castings and soil microbes
  • Insect free

Cons

  • Doesn’t provide enough P & K for the flowering phase
  • Contains a large number of wood chips
  • Similar to standard garden soil mixes
3

Fox Farm Ocean Forest Potting Soil Mix

Fox Farm’s Ocean Forest Potting Soil Mix is a tried-and-true soil mix for much of the cannabis community. It’s one of the easiest soil mixes to use for all stages of plant growth, whether from seedling to harvest.

A massive benefit for Ocean Forest is the fact that it’s already set to the ideal pH range. 6.3 to 6.8 pH is the ideal range for plants growing in soil for nutrient uptake. This makes Ocean Forest incredibly efficient, and your cannabis plants will likely show it with vigorous growth.

Fox Farm’s went above and beyond by offering a two-pack, which enables cultivators with additional potting soil. However, the price comes to $30 per bag, which is still on the high-end for an organic potting mix.

Although you’ll spend a substantial amount of money for Fox Farm’s Ocean Forest, it will pay for itself, considering you won’t need a pH pen. If you’re looking for an easy-to-use potting soil mix – this is it.

 

Pros

  • Simple to use soil mix
  • Two-for-one deal saves money in the long run
  • pH adjusted
  • Ideal soil mix for seedlings to mature plants

Cons

  • Expensive if only growing a couple plants
  • Not enough perlite for aeration
  • May require supplemental nutrients for the flowering phase
4

Big Rootz All Purpose Potting Soil

When it comes to the best cannabis nutrients for soil, Big Roots falls short. Although the product claims to be built by growers for growers, this potting mix doesn’t appear to stand out.

Their ingredient list, lists pre-washed coco-coir, peat moss, and compost as their base materials. Coco-coir and peat moss are both inert substances, which also lead to pH swings within the soil. If the only food source is compost, then it’s likely that you’ll need to supplement your cannabis plants during the flowering phase.

Furthermore, pests, such as fungus gnats, may find the perfect environment in Big Rootz’ soil bag. Through the humidity of the soil or due to the compost, various pests have been found within this soil mix.

Lastly, the price is double (or triple in some instances) that of competing products. Considering a bulk of the ingredients are technically inert, you’re paying for only a fraction of actual plant food.

If you’re looking for the best soil mix for cannabis, you’ll likely find it elsewhere.

Pros

  • Formulated with mycorrhizae for enhanced root growth
  • Contains water-retaining peat
  • Contains pre-washed coco-coir to reduce nutrient lockout
  • Easy-to-use out of the bag

Cons

  • Very expensive
  • Possibility of pests in the soil
  • It’s necessary to pH your water
5

Organic Super Soil Concentrated Strength

The Organic Super Soil Concentrated Strength is formulated to create the perfect growing environment for your cannabis plants. They contain a wide variety of beneficial microorganisms and organic nutrients, all of which work synergistically to provide rapid growth and bountiful yields.

Although Organic Super Soil Concentrated Strength is one of the best organic soils for cannabis, it’s still relatively expensive compared to other products with similar ingredients.

A single bag will not fill an entire 5-gallon pot, which makes this an expensive product if you’re growing more than one cannabis plant. Although the instructions recommend cutting this product with a standard potting mix, it won’t last very long.

Furthermore, the Organic Super Soil Concentrated Strength has a strong odor, which is a significant downside if you must be discreet.

Although Organic Super Soil Concentrated Strength is a premier potting mix for cannabis plants, it’s not recommended if you grow more than a handful of plants at once.

Pros

  • Organic
  • Contains a wide range of beneficial microorganisms
  • Simple to use
  • Perfect for all stages of growth

Cons

  • Very expensive for its small size
  • Will not fill a single 5-gallon pot
  • May contain pests
6

Super Soil Autoflower Concentrate

Here we have a fantastic but pricey soil in the Organic Super Soil Autoflower Concentrate mix, which is a specially formulated version of the original “organic super soil”.

What makes Natures Living Soil so good is the microorganisms they include, everything from Glomus Aggregatum, Glomus Etunicatum, Glomus Intraradices, Glomus Mosseae, Pisolithus Tinctorius, Scleroderma Cepa, Scleroderma Citrinum, Trichoderma Harzianum and so much more!

This enables the cannabis cultivator to take their plants all the way from seed, straight through to harvest.

Natures Living Soil as always deliver a great organic Autoflower mix with some fantastic ingredients:

  • Organic Earthworm Castings
  • Azomite
  • Epsom Salt
  • Coconut Water Powder
  • Aloe Vera The Microorganisms
  • High Quality Bat Guano
  • Blood Meal, Bone Meal
  • Fish Bone Meal, Alfalfa Meal
  • Kelp Meal
  • Dolomite Lime

Yes, the Super Soil Autoflower Concentrate is expensive, and the quantities may not be the best, but when you’re after a premium autoflower soil and can stomach paying that little bit extra, then Natures Living Soil is always a safe bet.

Pros

  • All-In-One
  • Top Rated
  • Established Soil Brand

Cons

  • Price Could be Better
7

Purple Cow IndiCanja Organic Living Soil

Purple Cow IndiCanja is the new kid on block in terms of cannabis soil. Purple Cow Organics produce a whole host of different organic products, including seed starter mix, BIOActive vegetable Supercharger, right up to their Purple Cow IndiCanja Organic Soil.

This plant-based, natural organic soil mix contains the necessary minerals and nutrients to start your seedlings on their journey. Having been scientifically formulated and tested Purple Cow IndiCanja is lauded by the people at IndiCanja as good for all stages of plant growth, from young seedlings all the way through to flowering.

IndiCanja bills their soil as developed by growers, for growers as well as being ideal for beginners or pro’s, an all-in-one soil perfect for every stage of growth.

We already know about the qualities of someone like FoxFarm Soil, but the big question is, is there room for another organic soil? And ultimately does the Purple Cow IndiCanja made by Purple Cow Organics have what it takes to sit among the top manufacturers?

Whilst a small number of consumers have experienced fungus gnats, the top-rated reviews from users so far would suggest they do, but the proof is in the pudding, or should we say the harvest…

Pros

  • Certified by the Organic Materials Review Institute
  • All-in-one Super Soil
  • Good for Different Stages

Cons

  • Expensive
  • Some Bags May Be Infested With Fungus Gnats
8

Canna Terra Professional Soil Mix

CANNA Terra Professional soil is probably better known to cultivators that reside in the UK, as it’s not widely available in the USA or Canada.

This nitrogen-rich potting mix is not only highly rated but also very reasonably priced. With thousands of happy customers across the UK, Canna Terra has been in the soil business for a long time and knows it like the back of their hand. They make everything from potting soil to nutrients for plant cultivation.

What makes CANNA Terra Professional potting mix different from your everyday soil is the organic rich ingredients. Sphagnum moss peat, compost, worm castings, perlite, and a special ‘natural plant booster’ to name a few.

Canna Terra bills their potting mix as the ideal soil mix for indoor and outdoor cultivation.

The high value organic ingredients CANNA Terra uses such as airy peat moss helps to prevent diseases and promote exceptional root development whilst delivering formations of thicker stems and higher yields. Low sickness rates and faster metabolism helps to ensure increased production.

Because of the above characteristics, CANNA Terra Professional Soil Mix is preferred by many UK growers for growing a wide variety of plants.

CANNA Terra Professional Mix makes an excellent bed improver that delivers a complex water/air system ideal for virtually every form of cultivation.

Pros

  • Highly Rated
  • Great Price
  • Popular in UK Cultivation
  • Well-known Established Brand

Cons

  • Availability
  • Purchase from official store and look out for infestations
9

Brut Super Soil

If you’re after a premium all-purpose soil packed full of nutrients and beneficial microbial life then this super soil by Brut may be the one for you.

We’ve previously featured their highly rated and popular worm castings in our best worm casting review. Well, Brut has now released this fantastic new all-in-one soil to compete with the more established well-known brands.

Brut super soil features some superb natural ingredients including –

  • Worm Castings
  • Mycorrhizal Fungi
  • Azomite
  • Kelp

Developed by experienced professionals, this super soil has all the good bacteria and microbes you want, and need. The included ingredients have the most robust, beneficial microbial life alongside the perfect mineral balance.

If you’re looking to experiment with a different soil for your next cannabis grow, then why not give Brut super soil a try? You never know, your plants may just find their new best friend.

Pros

  • Great price
  • Good company
  • Top rated

Cons

  • None
10

Mother Earth Terracraft All Purpose Potting Soil

Developed by experienced horticulturists, chemists, and biologists, Mother Earth Terracraft All Purpose Potting Soil is another highly rated, and popular soil for cannabis cultivators to consider at a very reasonable price!

Featuring an abundance of healthy ingredients, this all-in-one offering can help to nourish your cannabis plants all the way from seed to harvest!

Mother Earth all-purpose potting soil creates the perfect conditions for your plants, whether you’re growing indoors or outdoors. Aeration is moderate and the NPK is 0.19-0.08-0.11.

This well-blended soil mix includes ingredients such as;

  • Peat moss
  • Perlite
  • Forest products
  • Earthworm castings
  • Yucca

Pros

  • Very good price
  • Highly rated
  • Established brand

Cons

  • None
11

Roots Organics Original Potting Soil

Roots Organics Original Potting Soil is an ideal choice for fast-growing, heavy-feeding plants. It has a balanced air to water ratio of porosity and water retention that allows you to frequently feed your prized possessions without worrying about their roots rotting or drying out too quickly. Roots Organics soil bags double as pots – just cut the top off, drop in your plant/seedling (or sapling) with ease!

This Original Potting Soil from Roots Organics contains many ingredients which work together to provide your plant with the nutrients it needs. It has beneficial mycorrhizal fungi, Funneliformis mosseae, and Rhizophagus intraradices that enhance uptake of plant nutrients as well as increase root biomass.

Pros

  • Highly rated
  • Good ingredients
  • All-purpose great for beginners

Cons

  • Check sizing
  • Buy from a reputable seller and check for fungus knats
  • Bags are plastic
12

Fox Farm Strawberry Fields Potting Soil

Fox Farm Strawberry Fields Potting Soil is a coir-based mix, which means it will have better drainage and hold less water than peat mixes. Some cannabis growers prefer fast-draining soils to avoid overwatering their plants; however, they may need to water more often with Strawberry Fields compared with growing in a peat-based soil mix.

Strawberry Fields and Ocean Forest by Fox Farm have a lot in common. They’re both made from similar ingredients: worm castings, bat guano, oyster shell, aged forest product, peat moss are the same between both soils. Strawberry fields soil has dolomite lime while ocean forest has granite dust instead. In addition to this, they also contain coco fiber and crab meal shrimp meal kelp meals fish emulsion respectively.

Strawberry fields is a great potting soil that will produce luscious and flavorful buds. You’ll be pleased with the overall cost, appearance, ease of use as well as its beneficial Mycorrhizae bacteria.

Pros

  • Fox Farm Quality
  • Priced Competitively
  • Highly rated

Cons

  • Buy from reputable seller and check date on product upon arrival
13

Fox Farm Salamander Soil Mix

Cannabis plants grown in hot climates love to be hydrated during growth phases, and under optimal moisture conditions, beneficial microorganisms will flourish while nutrient uptake will also increase. In the Fox Farm Salamander Soil Mix, we have an ideal soil for rooted cuttings and young cannabis plants that’s also great for both indoor & outdoor cannabis cultivation.

This salamander soil is rich in nutrients, holds water extremely well, and feels almost perfect in texture when it is wet. It’s the best choice for cannabis plants that love moisture as the quality of this soil is top-notch. If you have cannabis plants that require less moisture then this soil can still be used by mixing with a substrate like vermiculite, perlite or pumice stone.

Pros

  • Excellent at retaining moisture
  • Another Fox Farm Favorite
  • Quality ingredients

Cons

  • Again, as with all soil bought online only buy from reputable sellers and check contents on arrival
14

Fox Farm Original Soil Mix

Fox Farm Original Soil Mix is made up of aged forest products, sphagnum peat moss, and earthworm castings. All these ingredients are used to make the soil more effective at holding moisture around plant roots which in turn makes for glorious cannabis buds!

Fox Farm Original Mix is an exceptional mix for raised bed planting. Ready to use straight out of the bag, it can be used to amend existing garden beds as well. This mix contains earthworm castings and beneficial micronutrients that work perfectly together in supporting healthy crops with strong root systems throughout all stages.

Fox Farm has carefully considered each aspect for optimal plant development when making their planting mix so it can provide all the elements needed at any stage throughout your cannabis plant’s life cycle.

Pros

  • Good all-round soil
  • Highly rated
  • Holds moisture

Cons

  • Pricey
15

SoHum Living Soil

SoHum Living Soil is designed by growers for growers, helping to make the cannabis cultivation process an easy one. It contains potassium, phosphorus, nitrogen, calcium, sulfur, and magnesium – all essential nutrients required by plants to grow healthy crops with a strong flavor.

Sohum Living Soil Mix comes with a specially blended mix of ingredients that includes kelp, meal, crab meal, bone meal, and alfalfa. The soil also contains perlite which helps with water retention and peat moss. Lastly, worm castings are added as they contain beneficial microbes for healthy plant growth making this mixture perfect for indoor or outdoor cultivation.

Sohum Soil has been purposely created to deliver rapid development of your plant’s root system and eliminates the need to flush, alongside increasing yields and producing trichome-covered buds full of flavor and aroma.

Pros

  • OMRI certified
  • Fully amended living soil
  • No synthetic chemicals
  • Highly rated
  • Made by growers for growers
  • Ready to use

Cons

  • May not be the best option for all stages
16

BuildASoil

BuildASoil’s 3.0 Recipe is an excellent potting soil that can be used for cannabis plants and that provides the perfect balance of nutrients to give your marijuana plants everything they need, without any dirty ingredients!

This potting soil from BuildASoil is one of their heaviest amended soil recipes to date and a firm favorite in the growing community and is available in sizes of half a cubic foot, one cubic foot, one cubic yard tote, pallet size, and truckload!

BuildASoil Super Soil is a high-quality all-in-one potting soil mix that will provide your plants with everything they need for successful growth from seed to harvest, the only thing that needs adding is water!

This formula has been the cannabis growers favorite because of the quality and testing that has gone into the making of it alongside being ready to go as soon as you open the bag.

Pros

  • Good for all stages of growth
  • Respected well-known soil brand
  • Highly rated

Cons

  • Pricey
17

KIS Organics

KIS Organics Biochar Soil Mix is a revolutionary “water only” soil mix registered for organic use with CDFA. Ingredients are composed of natural and organic minerals, so you can be sure that your plants will grow from seed to harvest without nutrient burn.

KIS soil is ready to use right out of the bag and has all the beneficial biology, nutrients, minerals your plant needs. You’ll never have a need for bottled supplements ever again and this biochar soil will make your plants happier and healthier for up to 6 months with all the nutrients they need. All you have to do is add water!!

KIS Organics uses 8% Black Owl’s biochar and inoculates this soil mix with additional microorganisms to further increase microbial life and nutrient cycling, KIS soil is 100% natural without any synthetic chemicals and can be used indoors or outdoors to achieve a healthy cannabis crop.

Pros

  • Lab tested
  • Respected cannabis brand
  • Multiple sizes available

Cons

  • Pricey

Best Soil for Cannabis: Buyers Guide

Buying soil for your cannabis plants might not seem important, but it’s one of the biggest deciding factors when it comes to plant health and overall yield.

Cannabis plants take anywhere from 4-6 months from seed to harvest. Clones may take upwards of 3 months to complete their life cycle. Not only is this a significant investment in time, but also the energy needed to fuel their growth.

This is why we’ve compiled this buyer’s guide to help you find the best soil for growing marijuana.

The Number of Cannabis Plants

Before you give your hard-earned money away, how many cannabis plants will you grow? This is the first question you must ask yourself because it’ll paint a clear picture of how much cannabis soil you’ll need.

If you’re growing a single plant or 6-plants in small containers, you won’t require a bale of cannabis soil to fit your needs. Instead, you can get away with purchasing a single bag of cannabis soil to keep your costs to a minimum.

However, if you’re growing multiple plants in large containers, then you’ll need to purchase multiple bags or a large bale-size bag of cannabis soil.

Whether you’re growing a warehouse full of cannabis plants or a single plant in your closet, knowing how much cannabis soil you need is the very first step you must take.

Stand-Alone Soil or Supplement-Based Soil?

This is the next important factor that you must consider. Do you want a cannabis soil mix that’s filled with all the necessary nutrition for your plants, or are you seeking a mild marijuana soil mix that can be amended with additional soil supplements?

If you choose a stand-alone cannabis potting soil product, then it might not be suitable for seedlings due to its overall strength. If you decide to go with a milder cannabis soil mix, then you’ll need to purchase additional nutrients.

Some growers find more freedom in purchasing cannabis soil mixes that contain fewer nutrients so they can fine-tune their overall nutrient content.

However, this method is only recommended for cultivators with experience. If you’re a beginner, fine-tuning your marijuana soil mix may prove to do more harm than good.

Beginners will benefit from utilizing a stand-alone cannabis soil mix because it contains everything your cannabis crop needs to thrive from seed to harvest.

Although these cannabis soils are not packed to the brim with nutrients, they will allow you to grow vigorous and high-yielding crops without the worry of nutrient burn.

Organic Soil or Inorganic Soil?

This is another essential question you need to ask yourself. Organic cannabis soil mixes contain ingredients that are from organic sources, which is scientifically proven to be better for the environment and your overall well-being.

Inorganic potting soil mixes tend to be cheaper in cost, but the price difference isn’t as large as in the past. Ultimately, this is a very personal question that only you can answer.

Living Soil Or Not?

Next, you’ll need to understand if you’re looking for a cannabis soil mix that contains beneficial microbes or not.

You may question this idea at first, but fungi (mycorrhizae) and bacteria play an integral role in breaking down nutrients for your prized cannabis plants.

In other words, beneficial microbes facilitate enhanced nutrient absorption, promote root growth, and provides a protective barrier against harmful bacteria and fungi.

Although you’ll likely see an increased price tag on marijuana soil mixes that contain beneficial microbes, it’s well worth it when you consider the effort it takes to grow high-quality cannabis flowers.

Are you Growing Photoperiod or Autoflowering Plants?

Another important factor to consider when looking for the best soil for marijuana is the type of plants you will be growing, by this, we mean will your grow room be filled with autoflowering plants or photoperiod?

This is definitely something that should be taken into consideration as if you’re growing autoflower plants, then they will likely prefer a cannabis soil mix that is light with few nutrients.

One of the more commonly used substrates growers use when growing autoflowering plants are carefully balanced peat based cannabis soil mixes with coco coir and additional perlite to achieve the required aeration and drainage.

An important reminder regarding soil mixes for weed, especially if you’re considering growing autoflower plants, is heavily fertilized cannabis soils or ready-made stand-alone amended marijuana soils can/will sometimes deliver too many nutrients for young seedlings resulting in nutrient burn (so bear this in mind!).

Additionally, when growing photoperiod plants, it may be more beneficial to start them in a seedling pot with a cannabis soil mix specifically designed as a seed starter with fewer nutrients. You can then replant your precious seedlings when the time is right in a more suitable cannabis soil for the next growth stage. It’s important to remember that mature cannabis plants in the later stages are much better at tolerating much higher nutrient levels than seedlings.

Qualities to Look for in a Good Cannabis Soil?

Many ready mixed store-bought cannabis soils are already amended within the correct ratios so should be ready to go in many cases. Of course, you can always amend the soil further if needed and as previously mentioned, many companies also produce cannabis soils for specific stages of growth, so research as much as possible and buy a potting soil that is correct for your individual situation.

What if you prefer natural-based soil or you’re growing organically?

Well, that’s slightly different, as cannabis soils come in many different ratios and include various and often different beneficial ingredients.

Many natural-based marijuana soils come in various ratios and can be classed as follows –

  • Loamy
  • Silty
  • Sandy
  • Clay based

Loamy Soil

Loamy soil is a mix of organic compounds and various ratios of clay, silt, and sand. Loam soil mixes are a popular choice among cannabis growers and should be near the top of your list when searching for the best soil for cannabis as they offer excellent drainage alongside ideal water retention. A quality organic loam soil will be rich in nutrients and provide plenty of oxygen.

Silty Soil

More of a coarse soil, silty soil mixes are abundant with beneficial organic minerals. Compared to loamy soil, a silty soil mix can be regarded as having fair-good water retention, with drainage that is about average. Silty soils mixes are very often extremely fertile alongside being very malleable, and easy to amend.

Sandy Soil

Another coarse soil mix is sandy soil, not the best kind of soil for many cannabis growers as water retention is poor-fair but sandy soil does have the benefit of good drainage! Although a common downfall to sandy soils is the washing away of vital nutrients. Again, just like silty soil, sandy soils are fairly easy to work with and amend.

Clay Soil

A heavy soil compared to other soil mixes, clay soils are another soil option for growers wanting a soil mix rich in nutrients and essential minerals, they’re made up of fine minerals. A very good option for organic cannabis grows. Clay soils have very good water retention but perform poorly drainage wise.

Is Growing Cannabis in Soil Easy?

This is the main question that beginners ask. In fact, growing cannabis in soil is one of the easiest methods because it’s by far the most natural.

The vast majority of cannabis soil brands offer “plug-and-play” soil mixes. This means that you don’t need to do anything – except water them.

In these cases, you’ll need to look for cannabis soil brands that are already within the optimal pH range (e.g anywhere between 5.8–6.3). By finding a pH balanced weed soil, you won’t need to worry about complicating matters with a pH pen.

Do You Need Additional Aeration?

Just like animals, your cannabis plants rely on oxygen to thrive. Alongside water and nutrients, air is a necessity when growing cannabis plants in soil.

Perlite is a primary material that cannabis growers use to increase the amount of air inside a soil mix. Not all cannabis soil brands contain perlite, so it’s essential to understand if your cannabis soil mix is too heavy.

Air pockets within your marijuana soil not only provide oxygen for the roots, but they also allow the root system to expand rapidly.

Furthermore, consistent air pockets within the potting soil mix enhance drainage, which will reduce the possibility of fungus and bacterial rot.

How to Grow Cannabis in Soil

Growing cannabis in soil is incredibly straightforward, especially when it’s already pH adjusted. Here are a few tips on getting your cannabis soil ready for your marijuana plants.

The first thing you need to do is fill your container 3/4 full with potting soil. Gently place your plant, and carefully add additional soil to cover the roots.

The cardinal rule is never compact the soil. Cannabis roots not only thrive from the nutrients within the cannabis soil mix, but also from the air pockets.

These tiny pores keep roots from rotting, so it’s essential that you refrain from pressing down on your cannabis soil.

If your marijuana soil mix is already pH adjusted, then you simply add water. Always allow your plant to satisfy its thirst before adding more water to avoid overwatering symptoms.

Recap

Now that you understand the importance of potting soil mixes for cannabis, let’s take a look at the best soil for cannabis.

Overall, Fox Farm’s Happy Frog potting soil is the best soil for cannabis plants. Whether you’re a commercial cultivator or small-scale home grower, Happy Frog is a versatile potting soil mix for any type of cannabis strain.

Fox Farm’s Happy Frog potting mix is pH balanced, perfect for all stages of growth, inexpensive, and bug-free. All of these factors are crucial when growing cannabis, and Happy Frog delivers each of these with ease.

Furthermore, Fox Farm’s Happy Frog potting soil contains adequate nutrition for your cannabis crop while allowing you to add supplemental nutrients if you decide to. This burn-free nutrient mix is perfect for those that want an easy-to-use cannabis soil mix.

As growers, we want the best products for our cannabis plants, and Fox Farm’s Happy Frog potting soil provides exactly that. This is why we recommend Fox Farm’s Happy Frog potting soil as the best soil for cannabis.

Do you have a preferred cannabis soil mix for your cannabis plants? Join the discussion at The Highest Crop and tell us which potting soil you like best!

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