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Make your own Cannabis Compost

The Best Compost and Fertilizers for Outdoor Marijuana Plants

Growing happy and healthy marijuana plants is a goal many people have. After all, with legalization sweeping across the nation, why not capitalize on this lucrative market, even if it is just for personal use? However, there is much more to growing cannabis than just getting a few weed.seeds or plants.

One of the first considerations to make is how to fertilize the soil. Some type of fertilizer is needed to ensure plants receive all the nutrients required to thrive, organic or otherwise.

Most people have likely heard all the facts and statistics about compositing and other methods of fertilizing plants; however, they may not be sure what to do next. Don’t worry, there are many people in this same position, and there are some tips, advice, and resources anyone can use to ensure they fertilize their plants correctly. With the right fertilizer, ensuring marijuana plants thrive will be a breeze.

Nature Over Nurture: The Importance of the Growing Environment

Composting is an affordable and somewhat simple method to use. It requires the use of items that would typically just be thrown away. It creates an environment that’s like soil that is fertile, which means your big bud weed or tangie strain cannabis plants will not just grow but thrive. Almost anything can be included, such as vegetables, fruits, plant clippings, animal manure, and more. Make sure compost piles never include meat or animal fat because this will cause it to attract parasites and maggots. It’s also not a good idea to include manure from a dog or cat and consider not using any pine needles because they will reduce the pH and won’t break down as fast as some of the other compostable items.

It’s important to break down all the compost ingredients into smaller pieces to help accelerate the breakdown of the compost mix. There are several ways to do this and an array of reasons to do it differently.

There are a few things all growers need to keep in mind. For example, it’s smart to layer the compost pile, and they should always ensure the air can flow through it. The last thing a person wants is a pile of compost that has minimal air circulation. Similar to any fertilizer or soil that’s used, it’s important to test the pH level of the compost pile to ensure it stays balanced. If the soil is too alkaline or acidic, it’s possible to add bone meal or lime to adjust the balance both ways.

Unless someone is living on a farm, they will likely need a longer amount of time to collect plenty of diverse organic matter to create a useful compost pile. It’s important to let a few months pass to gain enough items to create a useable mix. The result of this is well worth it, however, as the mixture is going to be much more fertile than most of the store-bought items that are available.

Grow Your Plants with the Proper Nutrients, Soil, and Additives

Since the composition of the soil is crucial to the harvest, it’s essential to consider what goes into it carefully. All growers encounter an essential choice when figuring out what they want the soil to be like. For example, do they want to go wild, organic, or use chemicals? There is no single right answer or solution to this question, it depends on a grower’s values and the amount of time and effort they want to devote to the process.

For those who choose to use chemicals, it means they will purchase fertilizers in-store. Organic includes everything from actively composting to a natural style of fertilizer. If a grower goes wild, it means throwing easy to grow weed seeds in all directions and waiting to see how they grow and function without any outside intervention. The one with the best results will usually be the organic option, but this isn’t always the easiest option. While this is true, a grower that chooses to go organic will be rewarded for their efforts, the look and taste are going to be much better than the other methods.

For those who aren’t willing to put much effort or time into their harvest, a chemical or store-bought fertilizer may be the best option. There are several quality products out there. This method of fertilizing the plants is considered more user friendly, which makes it a good choice for those who are growing marijuana for the first time. Even the package the product is sold in will have helpful advice and instructions on how to use it.

The package on a store-bought fertilizer should be helpful in the process of deciding what to use. It should provide information regarding the precise amounts of different nutrients that are in it. Also, chemical fertilizers are a smart option for individuals who choose to grow their fem seed plants in containers. This confined area (i.e., in the bucket or pot) means that it is necessary to maximize the nutrients present. In this situation, store-bought fertilizers are a smart bet.

While soil that is purchased in stores is supposed to come with balanced pH levels, this doesn’t mean it should not be checked during the season. Even if it begins with a pH level of seven, it may change within a single season, which makes it a good idea to test it from time to time. I fit hasn’t become obvious by this stage, a pH meter is a must have for any home growers toolbox.

Many store-bought soils are way too acidic from the beginning. Based on how things go, a person should not be surprised if the plants and soil are lacking in a nutrient or two during the growing season. Growers with a lot of experience know that, if they choose soil bought in the store, they will probably have to use organic soil amendments at some point.

Organic is Best

One of the most common reasons a person chooses to grow cannabis organically is because there is an almost zero chance that the marijuana plants will be burned. If a grower opts to use a higher amount of chemical fertilizer than necessary, it can be a bad thing, because it is very concentrated, and it may leave salts in the plant’s soil. The roots will rapidly absorb chemical fertilizers and, like someone who is eating too quickly, will experience a potentially negative reaction. This may cause the marijuana plants to die.

Typically, what will happen is that too much of a single nutrient will prevent the absorption of others, which will leave the plant deficient, and it may die. When organic substances are used, marijuana plants will only absorb the nutrients needed, and leave the rest behind in the soil. The rest of the nutrients will break down slowly, which helps ensure a steady supply.

The biggest drawback of organic cannabis growing is the knowledge needed along with the preparation that may be required to deliver the nutrients to the cannabis plants. Composting is a process that takes time and something to start several months ahead of time. It requires space for accomplishing this, preferable away from people because it may carry an odor. Also, depending on the specific security needs, it may be almost impossible to get the composted soil to the place where the plant will be grown, since where a person creates their compost and where they grow the cannabis may be far apart. In situations like this, it is a good idea to add the individual organic matter to the current site and bring the soil up to par.

The concept behind composting is the organic matter will decay with help from the bacteria created during the decomposition process into a loose, brown blend, which is referred to as humus. This is the same process that natural soil uses, but in nature it will take much longer to occur. This process is accelerated through composting because the mixture of the things added will increase the presence and the activity of microorganisms and bacteria. In fertile, quality soil, there are millions of different microorganisms in each gram, along with earthworms, which are always attracted to good soil and will improve it by living in it.

DIY Options for Compost

Even if a person decides to use chemicals to grow their various i 49 strain plants, they will likely still have to include some type of organic compost additives eventually. Keep reading to find a list of the different organic additives and what they can do to help with the specific elements of the soil and when fertilizers are making. These are the ingredients needed to make compost.

There is an array of additives available, too, but the list here will help a person make it through most seasons. Continue reading to learn some of the most valuable ingredients to include in the compost, along with other valuable information, like the precise ratios of Phosphorous, Potassium, and Nitrogen they contain, along with the season they are most useful in.

Blood Meal

This is an additive that includes a precise amount of nitrogen. It’s considered the most popular additive used for the vegetative growth period of cannabis.

Bone Meal

This is a phosphorous rich additive that’s best used for cannabis plants in the flowering phase of growth. It also releases the nutrients slowly, which makes it particularly useful in some of the last vegetative growing phases of the plants.


There are no two types of manure that are the same. Every kind of animal produces unique waste that offers varied fertilizing properties. A good bet is bat, horse, chicken, cow, or rabbit manure. These are all smart additives for compost, but don’t put them directly into the plant’s soil.

Chicken Compost

What many people don’t realize is that chicken manure makes a great fertilizer for cannabis plants. Using organic, slow-release chicken manure compost will increase yields while promoting healthier plants. If a grower doesn’t have any chickens on hand, there are organic fertilizers that can be purchased and used.

Worm Castings

Having a utility fertilizer can be useful in many situations. An option to consider is worm casters, which are considered a balanced option regarding the nutrient content. Along with phosphorous, potassium, and nitrogen, this material also includes micronutrients that offer general nutritional value to the soil and helps it to stay healthy and nutrient-rich.

Fish Emulsion

Just as repulsive as it may sound, fish emulsion is a mix that includes decomposed fish. It is most effective when applied to younger cannabis plants because it’s not as harsh as some of the other fertilizers. The nutrient content is also well balanced.

Kelp Meal

Full of micronutrients, kelp meal is most effective when it is used along with compost mix or a basic soil mix. All types of cannabis plants love it, so feed it to your white widow and trainwreck strain plants in small proportions during veg and flower stages.

Coffee Grounds

These are considered most useful when it’s necessary to change the pH level of the compost or the soil to be more acidic because the coffee grounds have a highly acidic pH content. The proper pH for the soil is crucial for growing a healthy cannabis plant.

Wood Ashes

To increase the pH level of the soil quickly, use wood ashes. This also offers many other health benefits and various micronutrients for the soil.


Another effective way to increase the compost’s or soil’s pH level is with lime. Many organic growers swear by this when the soil has become too acidic. However, the reaction time and breakdown are very slow. Because of the amount of time this takes, it is something that should only be used during the early part of the growing season. Also, it should only be added to the compost if a grower believes that the soil may have grown overly acidic for some reason.


Eggshells are the counterpart to coffee grounds. They can make the compost or soil more alkaline. Make sure to grind these down and include them in the compost pile.

The Bottom Line

With the right nutrients and ingredients, any marijuana grower can feel confident their sativa or indica plants will grow successfully and that they will thrive, regardless of where or when they are grown. The right compost is sure to be beneficial, so make sure to keep this in mind.