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Best Marijuana Fertilizer | Weed Fertilizers to Improve your Crop

marijuana fertilizer

Can you name the three requirements for growing marijuana?

Oxygen, sunlight, and fertilizers are the main requirements. A marijuana plant requires various nutrients for it to grow to its full potential.

Using fertilizers is the best way of ensuring your plant is getting all the essential nutrients like nitrogen, potassium, and phosphorus.

There’s a variety of marijuana fertilizers available in the market, which can be a little overwhelming, especially if this is your first time getting a fertilizer.

Don’t worry. I’ll help you find the best fertilizer for marijuana. In this post, I’ll be listing some of the best cannabis fertilizers on the market.

Let’s get right into the review.


Selection Of the Best Fertilizers for Marijuana

Fox Farm fertilizer for marijuana

Fox Farm Liquid Nutrient Trio Formula

Advanced Nutrients Bloom, Micro & Grow

Advanced Nutrients Bloom, Micro & Grow

General Hydroponics cannabis fertilizer

General Hydroponics Flora Series

Grow More Hawaiian

Grow More 7505 Hawaiian Bud & Bloom

Nectar For The Gods Olympus Up fertilizer

Nectar for The Gods Olympus Up

Advanced Nutrients fertilizer for weed

A.N. Big Bud and Bud Candy Bundle

Botanicare HGC732485 Silica Blast

Botanicare HGC732485 Silica Blast

Earth Juice marijuana fertilizer

Earth Juice 100542960 Starter Kit

Cyco Platinum weed fertilizer

Cyco Platinum Series Grow A & B

Biobizz Top-Max 5L fertilizer

Biobizz Top-Max


Top Weed Fertilizer Reviews:

When looking for fertilizer for your plants, make sure it contains all the important nutrients like nitrogen, potassium, and phosphorus. The minor nutrients your plant can get from compost or water.

Another thing to keep in mind is the NPK ratio, which is the ratio of three major nutrients. The N stands for nitrogen, the P for phosphorus, and the K for potassium.

Depending on the growing stage of your plant, you’ll need a different NPK ratio. For instance, your ratio requirement during the flowering stage will be different from your requirements during the vegetation stage.

Now that this information is out of the way, it’s time to move on to the review of the best fertilizer for weed.


1. Fox Farm Trio Formula Fertilizer

Fox Farm FX14049 Liquid Nutrient Trio Soil Formula

If you’re looking for weed fertilizers with different NPK ratios, then the Fox Farm FX14049 Liquid Nutrient Trio Soil Formula might be the right choice. You can get a pack of three liquid fertilizers for each stage of your plant’s growth.

When you first plant your seed, you can start with the Grow Big Hydro. This fertilizer will provide your plant with the nutrients it needs for healthy growth.

Once you spot buds, it’s time to switch to Tiger Bloom as it is rich in phosphorus.

Big Bloom is perfect for the growing period as it heals the roots of your plants. It is ideal for mature, late-season plants with fruits or flowers.



2. Advanced Nutrients Bloom, Micro & Grow Pack

Advanced Nutrients Bloom, Micro & Grow, PackAre you constantly worrying about maintaining the correct pH for your marijuana plant? The Advanced Nutrients Bloom, Micro & Grow Pack might be just what you need.

The Advanced Nutrients marijuana fertilizer has mineral bases that use pH-perfect technology along with organic nutrients. In addition, this three-part formula has advanced carrier molecules that ensure your plant gets a high quantity of nutrients in a small amount of time.

The best thing about this three-part formula is that you can customize and create your blend. If that sounds like a daunting task, use the nutrient calculator available on the Advanced Nutrients website. It can help you optimize growth and improve the yield.



3. GH – General Hydroponics Flora Series

GH General Hydroponics Flora Series

If you’re looking for the best plant food for weed, then look no further than the GH General Hydroponics Flora Series. You won’t be disappointed with this cannabis fertilizer as it has been tried and tested for 40 years.

General Hydroponics first produced the formula in 1976, and since then, improvements have been made.

With the Flora Series, you get three liquid fertilizers with different nutrient concentrations. The FloraGro is perfect for the vegetative stage as it helps your plant develop strong roots.

For the bloom cycles, you can use the FloraMico as it ensures optimum growth.

Lastly, during the fruiting or flowering stage, you can switch to FloraBloom.

Overall, this pack of three liquid weed fertilizers is excellent as the formula is gentle and has no harmful impacts on your plant.



4. Grow More Hawaiian Bud & Bloom – Marijuana Fertilizer

Grow More 7505 Hawaiian Bud and Bloom Fertilizer

The Grow More 7505 Hawaiian Bud and Bloom 5-50-17 Fertilizer is a good choice if you’re growing a tropical strain of cannabis. It’s also suitable for most flowering plants. The formula is Urea-free, which means it won’t damage or burn your plant.

It also contains chelated micronutrients, which are quick and easy to absorb for plant foliar or roots.

This marijuana fertilizer has a soluble formula that can be added to the best soil for weed. Just add a tablespoon of the solution to a gallon of water, then drench the soil with the solution.

Alternatively, you can also apply to the foliar. For foliar dosage, add a teaspoon of the formula to a gallon of water and then apply to foliar.



5. Nectar for The Gods Olympus Up Fertilizer

Nectar For The Gods Olympus Up fertilizer

If you want to regulate your plant’s pH, the Nectar for The Gods Olympus Up is one option to consider. The Olympus formula is extracted from micronized limestone. It helps adjust the pH of your soil by using calcium.

The calcium binds with the salts in the soil and acts as a buffer for soil decomposition. Not only does this Weed fertilizer encourage microbial activity in your plant, but it also improves the integrity of the cell wall.

Keep in mind that this fertilizer cannot be used to make your soil more alkaline. The Olympus will help you adjust your pH to 6.2 or 6.8. I suggest using a pH meter to ensure you’re using an adequate amount.



6. Advanced Nutrients Big Bud & Bud Candy Bundle

Advanced Nutrients Big Bud and Bud Candy Bundle

If you love cotton candy, then you might like the Advanced Nutrients Big Bud and Bud Candy Bundle Set Fertilizers. These two fertilizer set includes the Bud Candy and the Big Bud fertilizers. Both fertilizers are meant to be used during the bloom cycle.

The Bud Candy fertilizer feeds your plants with the carbohydrates they need to reach optimum growth.

Plants can only absorb certain types of carbohydrates, such as Arabinose, Glucose, and Maltose, which is why you need to ensure that your fertilizer has the right carbohydrates. Lucky for you, the Bud Candy has the correct carbohydrates.

If you need a bloom booster, then the Big Bud is a good option for you. It helps your plant grow larger, heavier, and denser flowers. Moreover, with Big Bud, you can improve the weight and value of your cannabis harvest.



7. Botanicare Silica Blast – Weed Fertilizer

Botanicare Silica Blast

Do you live in an environment with extreme temperatures? Is the temperature impacting the growth of your cannabis plant?

The Botanicare HGC732485 Silica Blast is the best fertilizer for weed strengthening. The Silica Blast not only helps strengthen your plant’s tissues but also helps plants grow even in harsh environments.

Derived from sodium silicate and potassium silicate, the silicate in this fertilizer stimulates the formation of a silicate matrix, which reduces water loss in your plant. In addition, it ensures your plant can produce food even at high temperatures.

Not only will your plant have stronger stems, but this fertilizer will also help neutralize the pH of your soil.



8. Earth Juice Starter Kit Cannabis Fertilizer

Earth Juice Plant Fertilizer

If you’re looking for high-performance gardening, Earth Juice 100542960 Starter Kit Plant Fertilizer is just what you need. You can use these three Earth Juice fertilizer on indoor and outdoor plants.

During the vegetative period, Earth Juice Grow encourages your plant to grow strong stems and green leaves.

The Earth Juice Bloom encourages your plant to develop rich flowers and fruits. It is crucial in helping the creation of essential oils, resin, and fragrances. You can use this when the plant begins to bud up till the end of the flowering season.

Lastly, Earth Juice Xatalyst promotes the growth of compact branches and increases your yield. This fertilizer is suitable for use during all stages of growth.



9. Cyco Platinum Series Grow A & B Nutrients

Cyco Platinum Series Grow A & B NutrientsIf your plants require little extra nutrients, I suggest you give Cyco Platinum Series Grow A & B Nutrients a try. The Grow A & B formula is created to provide your plants with various primary, secondary, and micro-nutrients.

The formula contains, among other nutrients, potassium, magnesium, phosphate, and calcium. All of which are essential for the healthy growth of your plant. Magnesium, for example, activates enzymes that are crucial for growth.

The nutrients in this marijuana fertilizer make it the best plant food for weed as they’re easily absorbable, resulting in a high yield.



10. Biobizz Top Max – Fertilizer for Marijuana

Biobizz Top-Max 5L fertilizer

Last on this list is the Biobizz Top-Max 5L, which is an organic flowering strengthener. Not only does it help increase the size of your plant, but it also increases the quantity. It does this by accelerating cell division in your plant.

It also adds a sweet taste to your flowers/fruits.

By using humic acid, Top-Max encourages the flow of nutrients in your plants. It contains compounds with a natural electrical charge that attract the nutrients from the soil to your plant, making it one of the best fertilizers for marijuana.

As Biobizz has seven different organic certifications worldwide, you can rest assured that this fertilizer will not damage your plants.



Wrapping Up with the Top Marijuana Fertilizer

As I mentioned earlier, to have a healthy plant with a high yield, you need to make sure your plant is getting the nutrients it needs. One of the easiest ways of providing your plants with nutrients is by using marijuana fertilizer.

I’ve listed some of the top-rated weed fertilizers in this list. Just use this post as a reference, and you’ll have no trouble finding the best fertilizer for marijuana.

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