General hydroponics autoflower feeding schedule

General hydroponics autoflower feeding schedule

Welcome to our comprehensive guide on the ultimate feeding schedule for auto-flowering plants using General Hydroponics nutrients in hydroponic systems. You’ve come to the right place if you’re a passionate cultivator seeking optimal results and bountiful yields from your auto-flowering plants.

Autoflowering plants have taken the cannabis cultivation world by storm with their ability to thrive in various light conditions and deliver rapid growth cycles. However, to unlock their full potential, providing them with the right nutrition is paramount. This is where General Hydroponics, a trusted name in the industry, steps in with its advanced nutrient line designed specifically for hydroponic systems.

In this guide, we will delve into the world of hydroponics, explore the crucial role of nutrients in plant growth, and introduce you to the remarkable General Hydroponics nutrient line. But that’s not all – we will provide you with an easy-to-follow auto flower feeding schedule tailored to maximize your plants’ health and productivity.

Read More: Why Hydroponics is bad?

Benefits of Hydroponics for Autoflowering Plants:

Hydroponics offers several significant advantages for cultivating auto-flowering plants:

  1. Faster Growth: Hydroponic systems provide an ideal environment for rapid plant growth. With no soil to navigate, plants can focus their energy on vegetative and flowering stages, resulting in shorter overall grow cycles.
  2. Increased Yields: The controlled hydroponics environment allows for optimal nutrient delivery, ensuring plants receive precisely what they need at each stage. This optimized nutrition translates into higher yields and larger, denser buds.
  3. Efficient Water Usage: Hydroponics is a water-efficient method of cultivation. Since plants are grown in a recirculating system, water is conserved as it is continuously reused, minimizing waste compared to traditional soil-based growing.
  4. Pest and Disease Control: Hydroponics reduces the risk of soil-borne pests and diseases that can hamper plant health by eliminating soil. This creates a cleaner and more sterile growing environment, promoting healthier and pest-free plants.

Common Hydroponic Systems Suitable for Autoflowers

Several hydroponic systems are well-suited for growing auto-flowering plants:

  1. Deep Water Culture (DWC): This system suspends plants in a nutrient-rich water solution with their roots submerged. Oxygen is provided through air stones or diffusers, ensuring roots receive ample oxygenation. DWC is beginner-friendly and ideal for small to medium-sized setups.
  2. Nutrient Film Technique (NFT): In this system, a thin film of nutrient solution flows over plant roots, allowing them to absorb nutrients. NFT is suitable for larger setups and provides excellent aeration to the roots, promoting fast growth.
  3. Drip Irrigation: Drip systems deliver nutrient solution directly to the plants through small tubes and emitters. This method allows for precise control over nutrient delivery and is suitable for small and large-scale operations.
  4. Aeroponics: Aeroponic systems mist the roots with a nutrient solution, providing high oxygen levels and nutrient absorption. While more advanced, aeroponics can yield exceptional results for experienced growers.

The Role of Nutrients in Plant Growth

A. Essential Macro and Micro Nutrients for Autoflowers

Just like any other plant, autoflowers require specific nutrients to support their growth and development. These nutrients can be categorized into two groups: macro and micronutrients.

Macro Nutrients: Macronutrients are required in larger quantities and are fundamental to plant growth. The primary macronutrients are:

  1. Nitrogen (N): Nitrogen is crucial for vegetative growth, leaf development, and overall plant vigor.
  2. Phosphorus (P): Phosphorus is essential for root development, flower formation, and energy transfer within the plant.
  3. Potassium (K): Potassium aids in flower and fruit development, strengthens plants against diseases and regulates water uptake.

Micro Nutrients: Micronutrients, also known as trace elements, are required in smaller amounts but are equally important for plant health. Some vital micronutrients for auto flowers include:

  1. Iron (Fe): Iron is necessary for chlorophyll production and photosynthesis.
  2. Calcium (Ca): Calcium contributes to cell wall strength, proper nutrient uptake, and overall plant structure.
  3. Magnesium (Mg): Magnesium is a chlorophyll component vital for photosynthesis.

Providing the right balance of macro and micronutrients is essential to ensure your auto flowers have all the necessary building blocks for healthy growth and abundant yields.

B. The Impact of Nutrient Imbalance on Plant Health

Maintaining a balanced nutrient profile is crucial because nutrient imbalances can significantly affect plant health and growth. An excess or deficiency of specific nutrients can lead to various issues:

  1. Nutrient Deficiencies: When a plant lacks a particular nutrient, it exhibits visible signs of deficiency. For example, a nitrogen deficiency may cause yellowing of lower leaves, while a phosphorus deficiency can result in stunted growth and delayed flowering. Identifying and addressing these deficiencies promptly is crucial to prevent further damage and ensure optimal plant health.
  2. Nutrient Toxicities: Conversely, certain excess nutrients can be toxic to plants. Overdosing on nutrients like nitrogen or potassium can lead to nutrient burn, causing leaf tips to turn brown and curl. Nutrient toxicities can inhibit nutrient uptake and disrupt overall plant functions.

C. Understanding N-P-K Ratio and Why It’s Important

The N-P-K ratio, often found on fertilizer labels, represents the proportion of nitrogen (N), phosphorus (P), and potassium (K) in the nutrient formulation. This ratio provides essential information about the nutrient composition and helps you choose the right fertilizer for your auto flowers.

The N-P-K ratio is expressed as three numbers, such as 10-5-5 or 3-12-6. Each number indicates the percentage of the respective nutrient in the formulation. For example, a 10-5-5 ratio means the fertilizer contains 10% nitrogen, 5% phosphorus, and 5% potassium.

Understanding the N-P-K ratio is crucial because it allows you to tailor your nutrient regimen to meet your plants’ specific needs at different growth stages. For instance, a higher nitrogen ratio promotes leafy growth during the vegetative stage, while a higher phosphorus and potassium ratio is beneficial during the flowering stage for abundant blooms.

How to Use General Hydroponics Nutrients for Autoflowers

Using General Hydroponics nutrients for auto flowers is a straightforward process that involves a few key steps:

  1. Dilution: Follow the instructions provided by General Hydroponics for diluting their nutrient solutions. Measure and mix the appropriate nutrients with water, ensuring proper ratios and concentrations.
  2. pH Adjustment: Before adding the nutrient solution to your hydroponic system, adjust the pH to the recommended range using pH Up or pH Down solutions. Regularly monitor and adjust the pH as needed throughout the growth cycle.
  3. Feeding Schedule: General Hydroponics provides a feeding schedule that outlines the recommended nutrient application rates at each growth stage. This schedule ensures your auto flowers receive the appropriate nutrients at the right time.
  4. Monitoring and Adjustments: Observe your plants closely and monitor their health and nutrient requirements. Adjust the nutrient application rates or ratios if you notice any signs of deficiency, toxicity, or growth abnormalities.

It’s important to remember that every growing environment and strain may have specific requirements. General Hydroponics nutrients are a reliable foundation, but you may need to fine-tune the nutrient regimen based on your autoflowers’ specific needs and responses.

General Hydroponics Autoflower Feeding Schedule

A. Importance of Adapting Nutrient Schedule for Autoflowers

Autoflowering plants have unique growth characteristics compared to photoperiodic plants. They follow a predetermined timeline and transition from vegetative to flowering stages automatically based on their age rather than light cycle changes. As a result, they have specific nutrient requirements that differ from traditional cannabis plants.

Adapting the nutrient schedule to meet the specific needs of auto flowers is crucial for maximizing their growth potential. Providing the right nutrients in the right quantities and at the appropriate stages ensures optimal plant health, robust flowering, and abundant yields.

Note: The following feeding schedule is a general guideline. When adjusting the nutrient application rates, it is essential to consider factors such as strain, environmental conditions, and plant response.

Seedling/Early Vegetative Stage (Weeks 1-2):

  1. Use a low-concentration nutrient solution with a balanced ratio of N-P-K, such as 2-2-2 or 3-2-1.
  2. Start with 25-50% of the recommended nutrient concentration.
  3. Gradually increase the nutrient concentration as the plants establish root systems and develop their first true leaves.

Late Vegetative Stage (Weeks 3-4):

  1. Increase the nutrient concentration to the recommended dosage for your specific General Hydroponics nutrient line.
  2. Maintain a balanced N-P-K ratio, such as 3-2-4 or 2-3-6, to support healthy foliage growth and root development.

Pre-Flowering/Transition Stage (Weeks 5-6):

  1. Adjust the nutrient ratio to promote flower development, such as increasing phosphorus (P) and potassium (K) levels.
  2. Monitor plant health closely and adjust nutrient application rates if necessary.

Flowering Stage (Weeks 7-10):

  1. Continue with the adjusted nutrient ratio that supports flower production.
  2. Gradually reduce the nitrogen (N) levels while maintaining adequate phosphorus (P) and potassium (K) levels.
  3. Monitor plant health and adjust nutrient concentrations to prevent deficiencies or toxicities.

C. Tips for Adjusting Feeding Schedule Based on Plant’s Stage and Health

  1. Monitor Plant Health: Regularly inspect your auto flowers for any signs of nutrient deficiencies, toxicities, or stress. Adjust the nutrient schedule accordingly to address any issues promptly.
  2. Adjust Based on Growth Stage: As your plants progress through different growth stages, adapt the nutrient ratios to meet their changing requirements. Increase phosphorus (P) and potassium (K) levels during flowering to support bud development.
  3. Assess Environmental Factors: Environmental conditions like temperature, humidity, and CO2 levels can influence nutrient uptake and plant metabolism. Make adjustments to the nutrient schedule if necessary to compensate for these factors.
  4. Consider Strain Characteristics: Different auto-flowering strains may have specific nutrient preferences or sensitivities. Observe how your plants respond to the nutrient regimen and make adjustments accordingly.
  5. Maintain pH Levels: Regularly monitor and adjust the pH of your nutrient solution to ensure optimal nutrient availability and uptake. Refer to the General Hydroponics pH adjusting solutions to maintain the recommended pH range for your auto flowers.


In conclusion, mastering the art of feeding auto-flowering plants in hydroponic systems using General Hydroponics nutrients is the key to unlocking their full potential. You can cultivate healthy plants with impressive yields by understanding the unique needs of auto flowers, adapting the nutrient schedule accordingly, and utilizing the General Hydroponics nutrient line.

Throughout this guide, we covered the basics of hydroponics, the importance of nutrients for plant growth, and the significance of maintaining the proper N-P-K ratio. We introduced you to the General Hydroponics nutrient line and emphasized the role of pH in hydroponic cultivation.

Following a recommended feeding schedule tailored to the growth stages of auto flowers is essential. However, adjustments may be necessary based on your plant’s specific requirements and environmental conditions.

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