Best Soil For Cannabis Seeds

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Been trying to figure out what is the best soil for cannabis? Not sure where to start? Read on to learn more about different soils and what's right for you. Your access to this site has been limited by the site owner If you think you have been blocked in error, contact the owner of this site for assistance. If you are a WordPress user with In this post we are going to talk about the best soil for weed and what to take into account before choosing the one that will suit your grow

Learn now how to choose the best soil for growing cannabis

Most weed gardeners know that growing cannabis in soil is a common and effective growing method.

The difficulty is that growers have to peruse through many soil options and may find it challenging to determine the right option for them.

Well, sit tight! In this article, we’ll be showing you how to choose the best soil for cannabis to give your marijuana the best chances of fat buds and a huge yield.

Why is choosing the best soil for cannabis very important?

Soil is one of the three components (including water and light) needed to help a plant

Choosing the best soil is vital as, without it, a plant can’t grow effectively and may end up lacking nutrients or even under developing. Good earth also helps provide plants with the health needed to survive under challenging weather conditions.

Along with learning about temperature and humidity for growing weed, understanding soil is vital. It spells the difference between a plant that didn’t grow to one that exceeded expectations.

The components that make up the soil

Soil consists of several components and is quite complex in its makeup. Let’s look at what these are:

  • Air: 25% of soil is simply air.
  • Water: A further 25% of the earth is water. It’s vital for moving nutrients to the plants.
  • Clay: One of the three primary materials found in soil, clay, like the other minerals, is derived from broken-down rocks.
  • Sand: This is one of the primary minerals found in dirt. Minerals, in fact, make up 46% of all soil.
  • Silt: The second of the primary minerals found within the soil.
  • Organic matter: This makes up the remaining 4% of the earth. Soils high in organic matter are brilliant for plant growth.

Knowing what good soil is

You can identify excellent cannabis soil by looking at a few key indicators.

  • Dark and loose: Dark soil is rich soil. It means that they contain plenty of organic matter, sodium, and healthy nutrients. Loose soil allows for better aeration.
  • Good drainage & water retention: Good drainage means that the marijuana water can drain to the bottom well. Well-drained earth ensures that your cannabis stays wet for a reasonable amount of time. An appropriate amount of water retention is vital to keep cannabis healthy.
  • The correct pH value: The ideal pH value is about 6.0 as cannabis plants thrive better in a slightly acidic environment.
  • Organic matter: Organic matter is decomposed material derived from plants and animals. It helps provide nutrients and improves the water holding capacity of the soil. Examples include compost and manure.

Choosing the best soil for marijuana

The best soil depends on the conditions that you’re growing your marijuana. So, for example, what’s needed for outdoor marijuana is different from that for indoor cannabis.

Let’s break it down.

Best soil for outdoor cannabis

The benefit of growing cannabis outdoors is that your plants won’t be as restricted and can further grow their roots.

However, you’ll have to monitor and possibly change the soil’s pH level if it’s not suitable.

Cannabis plants all need nitrogen, phosphorus, and potassium in their soil ‘diet’. These nutrients will be absorbed at different rates and need to be renewed with a good marijuana fertilizer from time to time.

A dark, crumbly loam works best outdoors that’s mostly silt.

Best soil for indoor cannabis

Loamy soil is the best for indoor cannabis. An ideal mixture of 40% silt, 40% clay, and 20% sand offers a loose soil texture for adequate oxygenation and root growth. This mix also offers good water retention, drainage, and an ideal pH level of 6.0.

Best potting soil for cannabis

Firstly, it’s important to note that no matter what pot you use, always make sure that there are holes at the bottom to prevent your cannabis from drowning.

Cannabis can be effectively grown in pots using pre-packaged organic soil.

An alternative is to make what is known as a ‘super soil’ mix. You’ll have to find a super soil recipe or order a mix online. It’s a great option as it self-regulates its pH levels.

See also  High Thc Marijuana Seeds

Best organic soil for cannabis

Creating the best organic soil for marijuana is tricky, but there are a few components that can drastically improve its health and efficacy:

Component What it offers
Worm castings This is a good source of nitrogen. It’ll also give your soil the added benefit of many micronutrients.
Bone meal For a source of phosphorus, this is the way to go.
Chicken manure Chicken manure is an excellent source for adding nitrogen and phosphorus to your soil.
Bat guano This is also a good way to get phosphorus and nitrogen into your organic soil. It also diversifies the soil’s bacteria.
Compost Compost piles can be an excellent source of nutrients such as potassium.
Kelp meal Both promoting microbial diversity and offering potassium, kelp meal is a great component to add to organic soil.

Best soil for autoflowering cannabis

Autoflower cannabis seeds transition automatically from the vegetative to flowering stage regardless of the light availability.

However, for this type of cannabis, light and aerated soil is preferred. This aids the roots in growing deeper.

You can make the best soil for autoflowers from peat moss, compost, vermiculite, and coco coir.

Store-bought vs. homemade

If you’re not interested in the hassle of putting together your own soil, then you can always stop at a local shop or peruse an online store for some good-quality mix that’s ready-made.

Although homemade soil may lack on some fronts, it does offer certain benefits. Let’s take a look at what those are compared to store-bought:

Homemade Cannabis Soil Store-Bought Cannabis Soil
Greater flexibility of choice. Already pre-packaged.
Generally cheaper than store-bought cannabis. More expensive than homemade cannabis.
It requires more research to figure out and can be complicated. The work to put together nutrients and research is already done for you.
Easier and cheaper to make in bulk. Often comes in smaller packaging.

How to make your own soil

Making your own soil may be preferable for many as ready-made soil mixes can be pretty expensive. Here are a few steps that you can follow to get started:

Step 1: To start with creating your marijuana soil mix, you can opt to find soil at your local gardening store. Alternatively, you can use the soil you have at home.

Step 2: Next, you’ll need to add the building blocks of cannabis: nitrogen, phosphorus, and potassium. You can find these components in worm castings, bone meal, and compost.

Step 3: Then, mix the soil. It’s as simple as that, and you’re on your way to having the best soil to grow marijuana.

Improving the soil, you already have

There are several minerals, soils, and nutrients that you can add to the soil you already have to make it suitable to grow excellent cannabis. Here are a few suggestions:

  • Coco for cannabis: Coco-coir is a flexible growing medium made out of coconut shells that grants your plants the ability to grow even faster than they already are.
  • Perlite: This can help loosen and provide excellent aeration to the soil and also aids in the speed of growth of the plant.
  • Vermiculite: This is good for dampening the soil and raising the pH level of your cannabis.
  • Worm castings: These are great for resolving nitrogen cannabis deficiencies. This nutrient-rich manure is perfect for any weed soil mix.
  • Nutrients: Along with nitrogen, potassium, and phosphorus, marijuana soil also needs calcium, magnesium, copper, iron, and many others.

Before we move on to our FAQs: if you want to know more about growing, be sure to check out our marijuana for beginners guide. It offers a lot of helpful information about costs, climate, strains, and much more relating to growing marijuana.

FAQs related to best soil for cannabis

We’ve scoured the internet and put together the most frequently asked questions to help you find the best soil for growing weed.

What is the best soil for growing cannabis?

Loam is undoubtedly the best soil for growing cannabis. Its pH level is close to the ideal level of 6.0. Regrettably, it’s quite an expensive soil to buy but a worthwhile investment if you want to grow the best marijuana plants possible.

What is the best soil for outdoor cannabis?

Outdoor cannabis grows well with organic soil. You can make your own or opt to purchase a mix online or at a local garden store.

What is the best soil for indoor cannabis?

The ideal is the same as the best overall cannabis soil, which is loam. If you’re not willing to pay the price, though, you can always opt for a nice pre-packaged cannabis soil mix. Just make sure that it’s full of quality nutrients!

See also  How To Tell If Marijuana Seeds Are Bad

What is the best organic soil for cannabis?

You’ll want a soil mix that’s teaming with all the necessary micro and macronutrients needed for your plants. A nice blend of worm castings, rock dust, bone meal, bat guano, and various other soil amendments is the way to go.

What are the best nutrients for cannabis in soil?

The fundamentals are:

  • Nitrogen (blood meal, ammonia, or cottonseed meal).
  • Phosphate (bone meal, slag, and rock phosphate).
  • Potassium (wood ashes or seaweeds).

It comes down to you

As you can see, there’s a lot to consider when choosing the best soil for growing marijuana. It depends on the type, where you’ll be growing it, and what you hope to achieve.

There are a lot of great ready-made products out there, both online and in-store. It just takes some time and research to figure out which is right for you.

Do you feel ready to start growing? Peruse the i49 website and decide on the right cannabis seeds for you to start your growing journey today.

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    Best Soil for Growing Weed

    In this article we are going to talk about the best soil for weed. Any decent cannabis grower wants to know what are the best products for growing weed properly. Sometimes, there is a tendency to choose soils for weed based only on their price, when maybe spending a couple of extra quid would be helpful to solve future issues related to soil. This article is here to explain the pros and cons of the best soils for weed plants.

    Soil is a mix of different compounds that humans have been using for centuries to improve their crops. In this case, seeing as we are talking about the best soils for growing marijuana we are going to look for compositions that cover this type of plants’ needs so they can develop fully and healthy.

    Apart from mixtures that you can make yourself with different peats, mixtures like hummus, perlite and other additives, we’re going to focus on mixtures that come ready-made. This is the easiest way to choose the best soil for your grow. Some substrates are light (without any fertilizers, and almost 0.0 EC) and others come loaded with nutrients. Depending on what nutrients they have, they’ll be more suitable for the growing stage or the flowering stage.

    Today, we’ll focus on some well-known light substrates (without additives):

    Light Mix (BioBizz)

    This mixture is perfect for growers that don’t fancy the idea of taking care of their plants every single day. It’s a high quality peat moss mix that retains humidity well. Even in hot regions you’d only have to water the weed plants every 2 or 3 days. During the early growing stages, plants need to be well taken care. This mix will be very helpful while the root development is taking place so that the soil doesn’t get too soaked. Otherwise, it can be difficult to get it dry again and the excessive humidity can severely damage the roots and choke the plant. If you water your plants correctly, this product is one of the best ones to use as it has plenty of benefits. Its EC values range between 0.5-1 and the PH levels should be between 6-6.8.

    When using this substrate, 1L of water was enough to cover the needs of a flowering plant in a 7L pot for 48h.

    Canna Terra Professional (Canna) soil for weed

    This product is the most sold substrate because it has a great price and offers amazing results. It is a soil mixture that if well-treated, will treat you well in return. It’s extremely efficient in grows that have an automatic watering system, because it doesn’t hold a lot of humidity and it dries quickly, allowing for the plants to be watered frequently. This soil has Sphagnum peat and perlite in its composition. Placing clay pebbles, perlite or coco fiber on the bottom of the pots is advisable to ensure a good drainage.

    Weed plants shouldn’t be left to dry out too much as it can be difficult to dampen them again. A tray with some water can be placed under the cannabis plants so the soil gets damp without any major difficulty. When dampening the soil, you shouldn’t compact the substrate too much because you’ll end up losing the perfect oxygen/water ratio, and you’ll end up with too much water. This is bad for the roots and can lead to rot.

    An adult plant in the middle of its flowering stage will need 1L of water a day when using this substrate.

    Light Mix (Plagron)


    This soil has a spongy feel to it, similar to coco substrate but with the same consistency as soil. It’s a mixture of the best moss and it has no additives, so fertilizers can be used without any problems. Another special quality of this mixture is its capacity to retain nutrients. If this substrate is used in conjunction with an organic fertilizer (we recommend Top Crop or Plagron) grows will be considerably tall. This soil is formed with blonde peat, black peat, coco fiber and perlite. PH levels should range between 5.5 and 6.9 and the EC levels have to be between 0.7 and 1.1. Its mineral nutrients NPK composition is 12/14/24.

    This soil will retain a lot more nutrients than other substrates. Your plants won’t need big amounts of fertilizers so that will be a saving. On the other hand it is easy to over-fertilize the weed plant, so you should be careful.

    7L pot plant needed 1L of water a day during the flowering stage but fertilizers were only used every 3 days.

    Janeco Light Mix (Atami)

    This mixture isn’t as light as others as it contains some nutrients to help your plant with the first growing phases. Some growth liquid will still necessary, though .If you don’t fertilize your plant with anything else during the entire process, it will end up lacking nutrients. As far as humidity retention goes, this soil is in between BioBizz light mix and Canna’s professional terra. It doesn’t retain much water but it’s not too dry. It’s the preferred option for those who check on their plants every day and water them if needs be.

    When using this type of soil, a 7L pot plant needed 1L of water every 36-48h.

    Super Soil for Weed

    Super soils is a type of soil that some growers prepare themselves to give the plant what it needs at the right moment, including all the nutrients and the right PH levels. This soil is 100% organic and is meant to replicate rich soils naturally found in nature. Some growers reckon this is the best soil for growing weed.

    Creating your own super soil is harder, more expensive and more time consuming than buying store products. Obviously, the results are very rewarding and your cannabis plants will surely appreciate it.

    Good quality super soil needs to have five ingredients: minerals, organic material matter, living organisms, gas and water. It also needs to be rich in Nitrogen, Potassium and Phosphorus.

    Some super soil recommended organic amendments would be bone meal, worm castings, wood ash and compost.

    Super soil can be reused at least three or four times given the right care. Some purists believe that the more you use it the better it gets and that it would only need some re-ammending after each season.

    As shown above, substrates have different qualities and it’s hard to decide which is the best soil for weed. You just have to choose the one that best adapt to your grows.

    Hopefully thanks to this article, making the right choice will be an easier task.

    You’ll find more tips and advice on how to grow cannabis in our blog and our YouTube Channel. Please don’t hesitate to check them out.

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