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Why did my autoflower produce seeds

Have you ever wondered why your autoflower seedlings suddenly started producing seeds during germination? It can be quite perplexing when your crop, which was expected to yield a bountiful harvest, surprises you with unexpected seed production. This phenomenon raises common concerns among growers and leaves them questioning the factors at play, such as pollination. Understanding the reasons behind seed production in autoflowers is crucial to avoid disappointment and maximize yields.

Whether you are an experienced grower or just starting out, gaining insight into the cultivation of the cannabis plant will help many growers navigate through potential challenges and optimize their future harvests of this crop.

So, let’s cut to the chase and uncover the secrets behind why your cannabis seedlings decided to start germination and produce cannabis roots.

Understanding Autoflowering Cannabis Plants and Their Seed Production

Autoflowering cannabis plants, also known as grown pot, have gained popularity among growers for their unique characteristics and ease of cultivation. These plants do not rely on photoperiod to flower, making them ideal for growers who want a faster harvest. Additionally, seed germination is simplified with autoflowering varieties. Unlike traditional cannabis plants, autoflowers do not require pollination to produce buds.

Key Characteristics of Autoflowering Cannabis Plants

Autoflowering seeds are known for their ability to transition from the vegetative stage to the flowering stage automatically, without relying on changes in light cycles. This trait is inherited from a subspecies called Cannabis Ruderalis. Unlike regular cannabis plants that require specific light schedules to trigger flowering, autoflowers will start blooming after a certain period regardless of light conditions. Growers can cultivate autoflowering seeds in their grow room using photoperiod techniques.

Another notable characteristic of autoflowering seeds is their compact size, making them suitable for indoor growing or discreet outdoor cultivation for growers. Autoflowers tend to stay relatively small compared to other cannabis strains. They have a shorter life cycle and can go from seedling to harvest in as little as 8-10 weeks. This makes them a popular choice among growers looking for a quick and easy way to cultivate female plants without worrying about the photoperiod.

The Life Cycle of an Autoflowering Plant

To understand why your autoflower growers produced seeds in the grow room, it’s essential to grasp the typical life cycle of these cannabis ruderalis plants. It begins with germination when the seed sprouts into a seedling. During this stage, it is crucial for growers to provide adequate moisture and gentle lighting from led grow lights until the plant develops its first set of true leaves.

As the cannabis plant matures, growers in their grow room must pay close attention to its vegetative stage, where it focuses on developing its roots and foliage. This phase usually lasts for a few weeks before transitioning into the flowering stage. Unlike photoperiod strains that require a change in light cycles to initiate flowering, autoflowers naturally progress into this phase based on their internal clock. Seed germination is crucial for growers to ensure successful growth.

How Seed Production Occurs in Autoflowers

While most growers aim for high-quality buds rather than seeds, there are instances where cannabis ruderalis autoflowers unexpectedly produce seeds. This phenomenon can be attributed to stress factors that the plant experiences during its growth cycle, such as extreme temperatures, nutrient deficiencies, or physical damage. These stressors can trigger the autoflower to produce male flowers alongside its female flowers, regardless of its height or size. LED lights can also play a role in the growth cycle of cannabis ruderalis.

When male cannabis flowers are present, they release pollen that can fertilize the female cannabis flowers, leading to cannabis seed production. This process is known as hermaphroditism and is an evolutionary response for cannabis plant survival in adverse conditions. However, it is important for cannabis growers to note that not all autoflowering cannabis seeds will exhibit this behavior, and it largely depends on the specific strain and environmental conditions in the grow room.

Differentiating Between Regular and Autoflowering Cannabis Plants

Differentiating between regular and autoflowering cannabis plants is relatively straightforward for growers once they understand their distinctive traits. Regular cannabis plants rely on changes in light cycles to trigger flowering, while autoflowers transition into the flowering stage automatically based on their age. The height and size of the plants can also vary depending on the seed germination process.

Regular cannabis strains, known for their larger yields and controlled lighting schedules, are often preferred by experienced growers. On the other hand, autoflowers, which have a quicker harvest time and smaller plant size, are favored by beginners.

Why did my autoflower produce seeds? Factors Affecting Seed Production in Autoflowers:

Autoflowering cannabis plants, when grown under the right environmental conditions and provided with proper nutrition, can transition automatically from the vegetative stage to the flowering stage without relying on changes in light cycles. However, sometimes these autoflowers may produce seeds, leaving growers wondering why this phenomenon occurs. Several factors, including genetic traits and external influences, can influence seed production in autoflowers.

Environmental factors influencing seed production in autoflowers

The environment plays a crucial role in determining whether cannabis growers will produce seeds. Temperature fluctuations, excessive humidity levels, and inadequate airflow can all contribute to seed development. High temperatures during the flowering stage can stress the cannabis plants and trigger hermaphroditism – the formation of both male and female reproductive organs. When this happens, pollen from the hermaphrodite flowers can fertilize nearby female flowers, resulting in seed production. Using a grow light can help maintain optimal conditions for cannabis growers.

Furthermore, inconsistent light schedules or interruptions during the dark period can also lead to stress and potential cannabis seed development. It is essential for cannabis growers to maintain a stable light schedule throughout the entire lifecycle of autoflowers to avoid any disruptions that could trigger unwanted seed production.

Genetic factors that contribute to seed development in autos

Genetics play a significant role in determining whether an autoflower cannabis plant will produce seeds. Some strains have a higher propensity for hermaphroditism than others due to their genetic makeup. Breeders often select for specific traits when developing new auto strains but occasionally overlook minimizing hermaphroditic tendencies. Growers should consider using a grow light to optimize the growth of their cannabis plants.

If you find your cannabis plant growers’ autoflower producing seeds consistently across multiple grows in Dec, despite providing optimal environmental conditions and care, it might be worth considering switching to a different strain with more stable genetics.

Nutritional requirements for healthy seed formation in autos

Providing adequate nutrition is crucial for healthy seed formation in cannabis growers. During the flowering stage when seeds develop, it is important for growers to ensure that their cannabis plants receive the proper balance of macronutrients and micronutrients. A deficiency in essential nutrients such as phosphorus, potassium, or calcium can negatively impact seed production for cannabis growers.

To support optimal development of cannabis seeds, growers should consider using a high-quality flowering nutrient formula specifically designed for autoflowers. These formulas often contain the ideal ratios of nutrients required during this crucial stage of the cannabis plant’s growth.

External influences impacting the likelihood of seed production

Apart from environmental and genetic factors, external influences can also impact the likelihood of seed production in autoflower growers. For instance, nearby cannabis plants that have already begun producing seeds may release pollen into the air, which can potentially fertilize your autoflower growers’ flowers. This is particularly relevant if you are growing multiple strains in close proximity as growers.

Pests such as spider mites or thrips can stress cannabis seeds and trigger hermaphroditism. It is essential to regularly inspect your plants for any signs of infestation and take appropriate measures to prevent pest-related stress while growing cannabis seeds.

The Role of Stress and Environmental Factors in Seed Production

Autoflowering cannabis plants have gained popularity among growers due to their ability to flower automatically, regardless of light cycles. However, it is not uncommon for autoflowering cannabis plants to produce seeds unexpectedly.

How stress can trigger seed production in autoflowers

Stress plays a significant role in triggering seed production in autoflowering cannabis plants. When an autoflower experiences stress during its growth cycle, it may perceive this as a threat to its survival and resort to producing cannabis seeds as a means of ensuring future generations. This response is an evolutionary adaptation that allows the cannabis plant to pass on its genetic material even under unfavorable conditions.

Various forms of stress, such as physical damage from pests or accidental breakage, can stimulate the reproductive system of autoflowering cannabis plants and lead to seed production. Nutrient deficiencies or imbalances can also induce stress, causing the plant to produce seeds as a survival mechanism.

The impact of light exposure on autoflowering and seeding processes

Light levels play a crucial role in both the flowering and seeding processes of cannabis autoflowers. These cannabis plants typically require a specific amount of light each day to maintain their growth cycle properly. Insufficient light exposure can disrupt this cycle and trigger premature cannabis seed production.

On the other hand, excessive light exposure can also cause stress for cannabis autoflowers, leading them to produce seeds prematurely. High-intensity light sources such as powerful grow lights or prolonged exposure to direct sunlight can create an environment that exceeds the cannabis plant’s optimal conditions, prompting it to focus on reproduction rather than vegetative growth.

Temperature fluctuations affecting seed development in autos

Temperature fluctuations throughout a cannabis autoflower’s life cycle can influence its seed development process. Like many other plants, autos have specific temperature requirements for optimal growth and reproduction. Fluctuations outside of this cannabis temperature range can cause stress and impact seed development.

Extreme heat or cold can disrupt the delicate balance necessary for successful seed production in autoflowers. High temperatures can accelerate the cannabis plant’s metabolism, potentially leading to premature seed maturation. Conversely, low temperatures can slow down vital processes such as pollination and fertilization, affecting overall seed quality.

Water availability as a factor influencing autoflower seeding

Water availability is another essential factor that influences the growth of cannabis plants. Insufficient water supply can induce stress in cannabis plants, triggering them to prematurely produce seeds. This response is an attempt by the plant to ensure its survival by securing future generations under potentially unfavorable conditions for cannabis cultivation.

Conversely, overwatering autoflower plants can also lead to stress and affect autoflower seed development. Excessive moisture in the soil can hinder nutrient uptake and oxygen availability for the roots of autoflower strains, disrupting normal growth processes. This imbalance may prompt the autoflower plants to prioritize reproduction over vegetative growth, affecting autoflower heights.

Do Feminized Autoflowering Plants Produce Seeds?

Feminized autoflowers have gained popularity among cannabis growers for their ability to produce only female plants, which are the ones that produce buds. However, there is a common misconception surrounding feminized auto flowers and their potential to produce seeds.

Clarifying misconceptions about feminized auto flowers producing seeds

One of the primary reasons people choose feminized autoflowers to grow cannabis is to avoid dealing with male plants, which do not produce buds and can pollinate female plants, resulting in seed production. However, it’s important to note that even with feminized cannabis seeds, there is still a small chance of encountering male traits or hermaphroditism.

Hermaphroditism in autoflower plants occurs when the plant develops both male and female reproductive organs. This can happen due to stress factors like temperature fluctuations or light interruptions during the flowering stage of autoflower strains. When an autoflower plant becomes hermaphroditic, it can self-pollinate or pollinate nearby females, resulting in seed production.

Understanding the role of genetics and breeding techniques

The genetics of a feminized autoflower cannabis plant play a crucial role in determining its propensity for seed production. Breeders carefully select parent plants with stable genetics that exhibit strong female traits while minimizing the risk of hermaphroditism.

To create feminized cannabis seeds, breeders use various techniques such as reversing the sex of a female cannabis plant through chemical treatments or using colloidal silver solutions. These methods induce female cannabis plants to develop pollen sacs containing only female chromosomes (XX), ensuring offspring will be predominantly female. This is especially useful for growers who want to control the cannabis grow and autoflower heights or autoflower size.

However, despite these advanced breeding techniques, there is always a slight possibility that some genetic instability may result in unexpected seed production in feminized autoflower seeds. This can affect the size and growth of autoflower plants, as well as the overall stability of the cannabis plant.

Examining the rarity of feminized auto flowers producing seeds

While it is uncommon for feminized autoflower cannabis plants to produce seeds, the average autoflower height can vary depending on genetics, environmental conditions, and stress levels.

Factors that increase the likelihood of seed production include:

  • Exposure to extreme temperatures or light fluctuations during flowering
  • Nutrient deficiencies or imbalances
  • Physical damage or stress caused by pests or diseases

It is crucial to provide optimal growing conditions for cannabis and closely monitor your cannabis plants to minimize the chances of seed production in feminized autoflowers.

Comparing feminized vs regular auto flower’s tendency to produce seeds

Compared to regular autoflower plants, feminized autoflower plants generally have a lower tendency to produce seeds. Regular autoflower plants possess both male and female traits, making them more susceptible to accidental pollination and subsequent seed production. This can affect the autoflower size and height of the cannabis plant.

With regular autoflower seeds, growers must carefully identify and remove any male plants as soon as they become evident. Failure to do so can result in cross-pollination and seed development. On the other hand, feminized autoflower seeds eliminate this concern by predominantly producing female plants. This helps ensure the desired autoflower size and autoflower height for cannabis cultivation.

Can Seeds from an Autoflowering Plant Produce Seeds?

Autoflowering cannabis plants have gained popularity among growers for their convenience and relatively short life cycle. However, there is often confusion surrounding whether the cannabis seeds produced by these plants can be used to grow new ones.

Dispelling Myths around Whether Auto Flower Seeds Can Reproduce

One common misconception is that autoflower seeds from the cannabis plant cannot produce viable offspring. While it’s true that some autoflowering strains of cannabis may have a reduced ability to produce seeds due to their unique genetics, this does not apply to all autos. Many modern autoflowering varieties of the cannabis plant are capable of producing viable seeds when properly pollinated.

Discussing Potential Outcomes When Planting Auto Flower Seeds

When planting autoflower cannabis seeds, there are several possible outcomes to consider, such as autoflower height and size.

  1. Feminized Autoflower Seeds: By using feminized auto flower seeds, you can ensure that all resulting plants will be female. This eliminates the need to identify and remove male plants during cultivation.
  2. Regular Autoflower Seeds: Regular auto flower seeds have both male and female genetics. When grown, some of these plants will naturally develop pollen sacs (male flowers), while others will develop pistils (female flowers). If left unattended, the male flowers can pollinate the females, resulting in seed production.
  3. Stress-Induced Hermaphroditism: Stress factors such as light leaks or extreme temperature fluctuations can cause auto flower plants to develop both male and female reproductive organs simultaneously—a condition known as hermaphroditism. These hermaphroditic plants can self-pollinate and produce seeds.

Considering Genetic Stability When Using Auto Flower Seeds for Cultivation

Genetic stability is crucial when selecting auto flower seeds to grow the cannabis plant. While first-generation autoflowering seeds tend to have consistent traits, this may not always be the case with second-generation seeds. When using second-generation auto flower seeds, there is a possibility of genetic variation and instability due to the mixing of different genetic backgrounds.

It’s worth noting that some breeders have successfully stabilized autoflower cannabis genetics over multiple generations, resulting in more reliable and predictable offspring. However, it is essential to research and choose reputable seed banks or breeders known for their commitment to maintaining genetic stability in cannabis growth.

Exploring Limitations and Possibilities with Second-Generation Auto Flower Seeds

Second-generation auto flower cannabis seeds can offer both limitations and possibilities for growers, especially when it comes to autoflower height. Here are some factors to consider.

  1. Genetic Variation: Second-generation auto flower plants may exhibit variations in growth patterns, flowering times, cannabinoid profiles, and overall characteristics compared to their parent plants.
  2. Selective Breeding: By carefully selecting and breeding second-generation autos with desirable traits, growers can potentially create new varieties that suit their specific needs.
  3. Unpredictability: Due to the potential for genetic variation, it’s important to approach second-generation auto flower cultivation with an open mind and expect some level of unpredictability.

Optimizing Growth Conditions to Minimize Seed Production in Autoflowers

Autoflowering cannabis plants have gained popularity among growers due to their ability to flower automatically, regardless of the light cycle. However, one common issue that many cannabis growers face is seed production in autoflowers. If you’ve wondered why your autoflower cannabis plant produced seeds and want to prevent it from happening again, optimizing growth conditions is key. By implementing strategies to reduce stress levels, providing optimal light cycles, controlling temperature and humidity, and managing nutrients effectively, you can minimize seed production in your autoflower cannabis plants.

Reducing Stress Levels during Cultivation

Stress plays a significant role in triggering seed development in autoflowers. To minimize stress levels during the cultivation of cannabis, it is important to grow them carefully.

  1. Maintain a consistent environment for your autoflower seeds: Fluctuations in temperature or humidity can stress the plants and lead to seed production. Keep your grow room stable by using proper insulation and ventilation techniques.
  2. Avoid overwatering autoflower seeds: Excessive watering can drown the roots and create an unfavorable environment for plant growth. Allow the soil to dry out slightly between waterings to prevent stress.
  3. Provide adequate nutrition: Nutrient deficiencies or excesses can cause stress and trigger seed formation. Follow a balanced feeding schedule tailored for autoflowers to ensure they receive all essential elements for healthy growth.

Providing Optimal Light Cycles

Controlling the light cycle is crucial for preventing seed development in autoflowers and ensuring optimal growth.

  1. Understand photoperiod requirements: Autoflowering plants thrive under specific light hours during each stage of growth. Research the recommended light cycles for your particular strain and adjust accordingly.
  2. Use LED grow lights for optimal growth of your autoflower seeds. LED lights are highly efficient and provide full-spectrum lighting necessary for your plants’ needs. They allow precise control over light intensity without excessive heat generation, tailoring the lighting conditions to promote the best growth.
  3. Avoid low-light conditions: Inadequate lighting can stress autoflowers and trigger seed production. Ensure your plants receive sufficient light throughout their vegetative growth stage to promote healthy development.

Controlling Temperature and Humidity

Maintaining the right temperature and humidity levels is essential for the successful growth of seedless autoflowering plants.

  1. Find the sweet spot: Autoflowers grow best within a specific temperature range, typically between 70-85°F (21-29°C). Monitor the temperature closely and make adjustments as necessary to ensure optimal growth.
  2. Manage humidity levels for autoflower seeds: High humidity can create a favorable environment for mold, while low humidity can stress the plants. Aim for a relative humidity of around 40-60% during vegetative growth, gradually decreasing to 30-40% during flowering.

Nutrient Management Techniques

Proper nutrient management is vital in minimizing seed production and promoting the healthy growth of autoflowers.

  1. To grow autoflowers successfully, it is crucial to use high-quality fertilizers. Opt for reputable brands that provide balanced nutrients specifically designed for autoflowers. Avoid overfeeding or underfeeding, as both can lead to stress and seed formation.
  2. Maintain pH levels for autoflower seeds: Regularly test the pH of your growing medium to ensure it falls within the appropriate range (usually between 5.8-6.5). Fluctuations in pH can affect nutrient absorption and cause stress.
  3. Consider using sterile techniques: Sterilize your growing medium before planting to minimize the risk of introducing pests or pathogens that could stress your autoflowers.


In conclusion, understanding the reasons behind seed production in autoflowers can help you optimize your growing conditions and minimize unwanted seed development. By considering various factors such as plant genetics, stress levels, and environmental conditions, you can improve the overall quality of your autoflowering cannabis plants.

It is important to note that feminized autoflowering plants are specifically bred to eliminate the production of seeds. However, under certain circumstances, even these plants may produce seeds due to stress or other external factors. Therefore, it is crucial to provide a stable and favorable environment for your plants to minimize the chances of seed production.

By optimizing growth conditions such as light exposure, temperature, humidity levels, and nutrient balance, you can create an ideal setting for your autoflowers. This will not only enhance their growth and yield but also reduce the likelihood of seed development.

Remember that maintaining a healthy and stress-free environment for your autoflower seeds is key. Avoid unnecessary disturbances or abrupt changes in their surroundings. Consistency in care and attention will go a long way in preventing seed production.

In summary:

  • Understand the nature of autoflowering cannabis plants and their potential for seed production.
  • Consider factors like genetics, stress levels, and environmental conditions that can influence seed development.
  • Recognize that even feminized autoflowering plants may produce seeds under certain circumstances.
  • Optimize growth conditions by providing adequate lighting, temperature control, humidity management, and proper nutrient supply.
  • Strive for a stable and stress-free environment to minimize unwanted seed production.

Now that you have gained insights into why autoflowers may produce seeds and how to mitigate this issue through optimal cultivation practices, it’s time to put this knowledge into action. By implementing these strategies effectively, you can maximize the yield and quality of your autoflowering cannabis crop while minimizing undesired seed development.


Q: Can I prevent my autoflower from producing seeds?

Autoflowers can produce seeds due to various factors such as stress or environmental conditions. However, by providing a stable and favorable environment, you can minimize the chances of seed production.

Q: Are feminized autoflowering plants guaranteed not to produce seeds?

While feminized autoflowering plants are specifically bred to eliminate seed production, they may still produce seeds under certain circumstances. Stress or other external factors can influence this outcome.

Q: How do I optimize growth conditions for my autoflowers?

To optimize growth conditions, ensure your plants receive adequate lighting, maintain suitable temperature and humidity levels, and provide a balanced nutrient supply. Consistency in care and attention is crucial.

Q: Can seeds from an autoflowering plant be used for future cultivation?

Yes, seeds from an autoflowering plant can be used for future cultivation. However, it’s important to note that the resulting plants may exhibit variations in traits due to genetic diversity.

Q: What are some common stressors that may trigger seed production in autoflowers?

Common stressors include extreme temperatures, inadequate lighting, overfeeding or nutrient imbalances, physical damage to the plant, and interruptions in the light cycle. Minimizing these stressors helps reduce the likelihood of seed development.