Best Nutrients For Outdoor Grow

By: Maria

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Growing cannabis outdoors is like nurturing a child. You want to give it the best, ensuring it thrives in every stage. But with so many nutrient options flooding the market, the big question is, how do you choose the best nutrients for outdoor grow? If you’re struggling to understand the right nutrients to feed your plants, keep reading.

What nutrients does a cannabis plant need?

Just like humans need carbohydrates, proteins, and fats, cannabis plants have their dietary essentials. The primary nutrients, often referred to as the “Big Three,” are Nitrogen (N), Potassium (K), and phosphorus (P). Nitrogen is vital during the vegetative stage, promoting healthy leaf and stem growth. Phosphorous is crucial during the flowering phase, aiding in robust bud formation. Potassium, on the other hand, plays a role throughout the plant’s life, ensuring overall health and resistance against diseases.

What are cannabis macronutrients?

Macronutrients are the primary nutrients that cannabis plants consume in larger quantities. They form the backbone of the plant’s nutrition, ensuring robust growth, healthy flowering, and resistance against pests and diseases.

What is NPK Ratio?

NPK stands for Nitrogen, Phosphorus, and Potassium. This ratio is a clear indicator of the proportion of each nutrient in a fertilizer. For instance, a fertilizer with an NPK ratio of 10-20-10 means it contains 10% nitrogen, 20% phosphorus, and 10% potassium. Understanding this ratio is crucial as it helps growers provide the proper nutrition at different growth stages.

What are secondary nutrients?

Beyond the primary macronutrients, cannabis plants also require secondary nutrients, but in smaller quantities. These include Calcium (Ca), which aids in cell wall formation and root development; Magnesium (Mg), essential for photosynthesis; and Sulfur (S), which helps in producing vitamins and amino acids.

What are cannabis micronutrients?

Micronutrients, though required in trace amounts, play a pivotal role in various physiological functions of the cannabis plant. Elements like Boron aid in cell division, while Copper is essential for photosynthesis. Iron ensures chlorophyll production, and Manganese aids in enzyme activation. A deficiency in any of these micronutrients can lead to stunted growth, poor yields, and increased susceptibility to diseases.

What cannabis nutrients are used for outdoor grows?

Outdoor cultivation is influenced by various factors like soil type, weather conditions, and local pests. The best nutrients for such setups often include a mix of both macro and micronutrients. Essential elements for outdoor grows include Nitrogen, Phosphorus, Potassium, Calcium, Iron, Zinc, Magnesium, Copper, Manganese, and Cobalt. It’s also crucial to regularly test the soil to adjust the nutrient mix as the plant grows.

Top Nutrients for Outdoor Cannabis Gardens

Several brands have carved a niche in the cannabis cultivation world, offering a range of nutrient mixes tailored for every growth stage. Brands like Roots Organic offer both dry and liquid formulations, while Nectar for the Gods provides all-natural products that are well-suited for personal grows. Bio Bizz, with its extensive product line, caters to both beginners and seasoned growers.

What Types of Fertilizers Can Be Used to Grow Cannabis?

Fertilizers form the core of cannabis nutrition. While salt-based fertilizers are lab-manufactured and provide consistent results, organic fertilizers are derived from natural components like fish bone meal and compost. Organic options, though slower to release, enrich the soil over time, promoting microbial activity and improving soil structure.

What’s the difference between organic and synthetic cannabis fertilizers?

The debate between organic and synthetic fertilizers is age-old. While organic options feed the soil, promoting long-term soil health, synthetic fertilizers provide direct nutrition to the plants, ensuring quicker results. However, over-reliance on synthetic options can lead to soil degradation over time.

Testing is Key With The Best Nutrients for Outdoor Grow

It’s essential to remember that every plant, soil type, and outdoor condition is unique. Regular soil testing can provide insights into nutrient deficiencies, helping growers adjust their nutrient mix for optimal results.


Growing cannabis outdoors is both an art and a science. With the right knowledge, patience, and the best nutrients, you can ensure a bountiful harvest. As you embark on this green journey, remember that nature is your best ally. Listen to it, learn from it, and watch your cannabis plants thrive.

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