How To Grow Autoflower With LED

Welcome to the world of indoor growing! If you’re looking to grow autoflowers, using LED lights is a game-changer. Not only do they provide full-spectrum light necessary for the plants’ growth, but they also offer a range of benefits that contribute to bigger and healthier plants. Let’s dive into how you can harness the power of LED lights for your indoor autoflower garden.

Key Takeaways:

  • Growing autoflowers with LED lights yields bigger and healthier plants.
  • LED lights provide full-spectrum light essential for optimal growth.
  • LED lights are energy-efficient and ideal for indoor growing.
  • By using LED lights, you can customize the light spectrums based on your plants’ needs.
  • Proper lighting with LED lights ensures higher yields and successful cultivation.

The Importance of LED Lights for Autoflowers

When it comes to growing autoflowers, LED lights play a crucial role in providing the optimal light spectrum for these plants. LED lights emit a full-spectrum light that closely mimics natural sunlight, ensuring that autoflowers receive the necessary light energy for photosynthesis and the production of carbon-based sugar compounds.

Photosynthesis is a fundamental process for plant growth, as it converts light energy into chemical energy, enabling plants to produce their own food. With LED lights, autoflowers can efficiently carry out photosynthesis, resulting in healthier and more vigorous growth. LED lights also contribute to the interaction between plants and beneficial microbes in the soil, creating a symbiotic relationship that enhances overall plant health.

Unlike traditional lighting options, LED lights are energy-efficient and have a longer lifespan, making them a cost-effective choice for indoor growers. Additionally, LED lights emit less heat, allowing growers to maintain optimal temperature levels in the growing space without risking heat stress to the plants. These advantages make LED lights a popular and practical choice for cultivating autoflowers.

Table: Comparing Light Sources for Autoflowers

Light Source Benefits
LED Lights – Full-spectrum light
– Longer lifespan
– Less heat emission
Fluorescent Lights – Affordable
– Suitable for seedlings and clones
– Low heat output
– Limited spectrum options
High-Intensity Discharge (HID) Lights – High light intensity
– Suitable for larger grow spaces
– Require additional cooling systems
– Higher energy consumption

As shown in the table, LED lights outperform other light sources in terms of their full-spectrum light emission, energy efficiency, longer lifespan, and reduced heat output. These factors make LED lights the ideal choice for providing the optimal lighting conditions required by autoflowers.

Advantages of Using LED Lights for Autoflowers

LED lights offer several advantages for growing autoflowers. These energy-efficient lights are a popular choice among indoor growers due to their numerous benefits. Let’s explore some of the advantages:

  • Energy-efficient: LED lights consume less power compared to other lighting options, making them cost-effective and environmentally friendly. They can significantly reduce electricity bills during the cultivation process.
  • Reduced heat: Unlike traditional lights, LED lights emit less heat, providing a cooler environment for your autoflowers. This makes it easier to regulate the temperature in your grow space and reduces the risk of heat-related stress or damage to the plants.
  • Full spectrum: LED lights provide a full spectrum of light, which closely mimics natural sunlight. This means that autoflowers receive the optimal wavelengths needed for photosynthesis and overall growth.
  • Enhanced features: Some LED lights are designed to emit ultraviolet (UV) rays. These UV rays can enhance the quality of your cannabis buds, including their flavor, aroma, and potency.

By utilizing LED lights, you can create an ideal growing environment for your autoflowers, maximizing their growth potential and ultimately yielding healthier, more abundant harvests.

advantages of LED lights for autoflowers

Comparing LED Lights with Other Lighting Options

Advantages LED Lights Traditional Lights
Energy Efficiency High Low
Heat Emission Low High
Spectrum Full Spectrum Limited Spectrum
UV Emission Available in Some Models Not Available

“LED lights provide an energy-efficient, heat-reducing, full-spectrum lighting solution for growing autoflowers, setting them apart from traditional lighting options.” – John Doe, Horticulture Expert

Types of LED Lights for Autoflowers

LED lights for autoflowers

If you’re considering growing autoflowers with LED lights, it’s essential to understand the different types of LED lights available and their specific characteristics. Each type of LED light offers unique advantages and disadvantages, so choosing the right one for your autoflowers is crucial for optimal growth and yield.

Purple LEDs

Purple LEDs, also known as blurple LEDs, are the most common and affordable type of LED lights used for growing autoflowers. These lights emit a mix of blue and red wavelengths, which are essential for the vegetative and flowering stages of plant growth. However, the spectrum provided by purple LEDs may not be as balanced as other types, potentially resulting in lower yields.


COB (Chip-on-Board) LEDs are a more advanced option for growing autoflowers. These lights consist of multiple LED chips mounted onto a single board, offering higher intensity and better light penetration compared to purple LEDs. COB LEDs provide a more uniform light distribution, which can result in improved plant development and higher yields. However, they may have limited coverage and need to be positioned closer to the plants for optimal performance.

Spread or Spider-Style LEDs

Spread or spider-style LEDs are the latest innovation in LED light fixtures for growing autoflowers. These lights feature multiple LED diodes spread out in a wide panel or “spider” configuration. They offer highly efficient light distribution with excellent coverage, ensuring that every corner of your growing space receives sufficient light. Spread or spider-style LEDs are also adjustable, allowing you to customize the light spectrum according to your plants’ needs.

It’s essential to consider your budget, growing space, and specific requirements when choosing the type of LED lights for your autoflowers. Assessing the pros and cons of each type will help you make an informed decision, ultimately leading to healthier plants and better yields.

Can You Grow Autoflowers with LEDs?

LED lights have gained significant popularity among indoor growers for growing autoflowers. Their energy efficiency and ability to provide full-spectrum light make them an ideal choice for indoor gardening. So, can you grow autoflowers with LEDs? Absolutely! LEDs offer numerous benefits for cultivating autoflowers and can help you achieve healthy plants and high-quality yields.

LED lights are particularly effective for indoor growing as they mimic natural sunlight, providing the necessary light energy for photosynthesis and plant growth. Unlike other lighting options, LEDs emit a full spectrum of light, including red, blue, and white wavelengths, which are essential for different stages of plant development.

Furthermore, LEDs generate less heat compared to traditional lighting systems, reducing the risk of heat damage and allowing you to maintain optimal temperature conditions in your growing space. This not only protects your plants but also helps you save on cooling costs. LED lights are also highly energy-efficient, consuming less electricity while still providing the necessary light intensity for autoflowering strains.

With LED lights, you can customize the light spectrum and adjust the intensity according to your plants’ specific needs. This flexibility allows you to optimize the growing conditions, resulting in healthier plants and higher yields. Whether you’re a beginner or an experienced grower, using LEDs for growing autoflowers can help you achieve successful cultivation and enjoy the rewards of your efforts.

grow autoflowers with LEDs

Table: Advantages of Growing Autoflowers with LEDs

Advantages Description
Energy efficiency LED lights consume less electricity, resulting in reduced energy costs.
Full-spectrum light LEDs emit a complete range of light wavelengths necessary for plant growth and development.
Reduced heat LED lights produce less heat than traditional lighting options, minimizing the risk of heat damage to your plants.
Customizable light spectrum LEDs allow you to adjust the light spectrum and intensity to meet the specific needs of your autoflowers.
Long lifespan LED lights have a longer lifespan compared to other lighting options, providing consistent performance over time.

How Long Do Autoflowers Take from Seed to Harvest?

When growing autoflowers, one of the biggest advantages is the shorter time it takes for them to reach harvest compared to other cannabis plants. Autoflowering strains typically have a quick turnaround, with a seed-to-harvest time of around 8-10 weeks. Some varieties may take up to 12 weeks, but overall, they offer a significantly shorter growing time.

This rapid growth and early harvest make autoflowers a popular choice among growers who are looking for a quicker yield. Whether you’re a beginner or an experienced grower, autoflowers can be a convenient option due to their fast growth cycle.

It’s important to note that the specific seed-to-harvest time can vary depending on the strain, environmental conditions, and cultivation techniques. However, the general timeframe of 8-10 weeks for autoflowers remains consistent and offers growers the opportunity to enjoy their harvest sooner.

autoflowers seed to harvest

Light Schedule for Autoflowering Strains

When it comes to growing autoflowering strains, one of the key factors to consider is the light schedule. Unlike photoperiod plants that require a specific light cycle to trigger flowering, autoflowers do not depend on light duration. However, providing the right amount of light is still crucial for their growth and development.

For autoflowering strains, a commonly recommended light schedule is 18 hours on and 6 hours off. This means that you keep the lights on for 18 hours straight and then turn them off for the remaining 6 hours. This continuous light cycle allows the plants to receive sufficient light energy for photosynthesis and promotes continuous growth throughout their life cycle.

The 18/6 light schedule is favored by many growers because it closely mimics the summer solstice conditions when the days are longest. This extended period of light ensures that autoflowers have ample time to grow and produce high-quality buds. However, it’s important to note that different growers may have their own preferred light schedules based on their specific setup and environmental conditions.

It’s worth mentioning that while keeping the lights on for 24 hours straight might seem like a good idea to maximize growth, it is generally not recommended. Plants, including autoflowers, still need a period of darkness for various physiological processes and to prevent stress. Providing some darkness allows the plants to rest and recover, leading to healthier growth overall.

Overall, maintaining a consistent light schedule is essential for the successful cultivation of autoflowering strains. By following the 18/6 light cycle or adjusting it according to your specific needs, you can ensure that your autoflowers receive the optimal amount of light for robust growth and abundant yields.

light schedule for autoflowering strains

Table: Comparison of Light Schedules for Growing Autoflowering Strains

Light Schedule Advantages Disadvantages
  • Optimal light duration for continuous growth
  • Mimics summer solstice conditions
  • Some growers may prefer different light schedules
  • Maximizes light exposure for potential growth
  • Does not allow plants to rest and recover
Other variations
  • Flexibility to customize light schedules
  • May require experimentation to find the optimal schedule

The pH and Nutrient Considerations for Autoflowers

When growing autoflowers, it is crucial to pay attention to the pH levels of your soil. The ideal pH range for cannabis plants, including autoflowers, is between 6.0 and 6.5. Maintaining the proper pH allows the plants to effectively absorb nutrients from the soil, promoting healthy growth and development. To ensure your pH levels are within the optimal range, consider using a pH tester kit specifically designed for soil testing. This will give you accurate readings and help you adjust the pH if necessary.

In addition to pH levels, providing adequate nutrients is essential for the overall health and vigor of your autoflowers. Different stages of growth require different nutrients, so be sure to follow a feeding schedule specific to autoflowers. Generally, during the vegetative stage, plants require higher levels of nitrogen for leaf and stem development. As the plants transition to the flowering stage, phosphorus and potassium become more important for bud formation and overall yield.

It’s important to note that nutrient requirements may vary depending on the specific strain of autoflower you are growing. Some strains may have specific nutrient preferences or requirements, so conducting research on the strain you are cultivating can provide valuable insights.

Remember to always start with lower nutrient concentrations and gradually increase them as your plants develop. Overfeeding can lead to nutrient burn and other issues, so it’s better to err on the side of caution. Regular monitoring of your plants’ health and adjusting nutrient levels accordingly will help ensure optimal growth and maximize your autoflower yield.

Nutrient Vegetative Stage Flowering Stage
Nitrogen (N) Higher levels for leaf and stem development Reduced levels
Phosphorus (P) Higher levels for bud formation
Potassium (K) Higher levels for overall yield


Growing autoflowers with LED lights is a highly effective method for indoor gardening. LED lights provide optimal lighting with their full-spectrum light, promoting healthier plants and higher yields. With their energy-efficient design, LED lights are an ideal choice for growers looking to maximize their cultivation results.

By utilizing LED lights, you can create an ideal growing environment for your autoflowers. These lights produce less heat, making it easier to regulate the temperature in your indoor garden. Their flexibility allows you to customize light spectrums to match the specific needs of your plants, ensuring optimal growth and development.

Indoor growers who choose LED lights for growing autoflowers can expect to achieve better results in terms of yield and plant health. With the right light schedule, maintaining proper pH levels in the soil, and providing adequate nutrients, you can successfully cultivate autoflowers and enjoy the rewards of your efforts. So, go ahead and start your indoor gardening journey with LED lights for optimal results!


How do I grow autoflowers with LED lights?

Growing autoflowers with LED lights is simple. Just provide them with the necessary full-spectrum light and follow the proper light schedule. LED lights are energy-efficient and offer the flexibility to customize light spectrums.

Why are LED lights important for autoflowers?

LED lights provide the full-spectrum light and energy that autoflowers need for photosynthesis and growth. They also contribute to the interaction between plants and beneficial microbes in the soil.

What are the advantages of using LED lights for autoflowers?

LED lights are energy-efficient, cost-effective, and emit less heat compared to other lighting options. Some LED lights even emit ultraviolet rays, which can enhance the flavor, aroma, and potency of cannabis buds.

What types of LED lights are available for growing autoflowers?

There are different types of LED lights available, including standard purple LEDs, COB LEDs, and spread or spider-style LEDs. Each type has its advantages in terms of cost, penetration, intensity, and light coverage.

Can I grow autoflowers with LEDs?

Yes, you can definitely grow autoflowers with LED lights. In fact, LEDs are a popular choice among growers for growing autoflowers due to their energy efficiency and full-spectrum light.

How long does it take for autoflowers to go from seed to harvest?

Autoflowering strains typically take 8-10 weeks from seed to harvest, with some varieties taking up to 12 weeks. They are known for their fast growth and early harvests.

What light schedule should I use for autoflowering strains?

Many growers keep their autoflowers on a light schedule of 18 hours on and 6 hours off throughout the entire growing cycle. This allows for continuous growth and development of the plants.

What pH levels should I maintain for autoflowers?

The ideal soil pH for cannabis plants, including autoflowers, is between 6.0 and 6.5. Using a pH tester can help ensure the pH levels are within the optimal range.

What nutrient considerations should I keep in mind for autoflowers?

Adequate nutrient supplementation is necessary for healthy growth. Make sure to provide the necessary nutrients according to the specific needs of your autoflowers.

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