When growing cannabis, it is important to keep a close eye on the pistils. These tiny hair-like structures play a crucial role in the plant’s reproductive process, and their appearance can tell you a lot about the health and progress of your crop.
One thing that growers may notice is the pistils turning brown in week 2 of flowering, which can be cause for concern.
Brown pistils can be an indication that something is not quite right with your plants. While it is normal for some pistils to turn brown towards the end of the flowering stage, seeing this happen in week 2 can be a sign of stress or other issues.
It is important to identify the cause of brown pistils early on so that you can take action to correct the problem and ensure a healthy harvest.
There are several factors that can cause pistils to turn brown prematurely, including light burn, nutrient deficiencies, and pests. Identifying the root cause of the issue is crucial in determining the best course of action.
In this article, we will explore the possible causes of brown pistils in week 2 of flowering, as well as the impact it can have on your crop and what you can do to prevent it.
Key Takeaways on Pistils Turning Brown Week 2 Into Flowering
- Brown pistils in week 2 of flowering can be a sign of stress or other issues with your cannabis plants.
- Possible causes of brown pistils include light burn, nutrient deficiencies, and pests.
- Identifying the root cause of brown pistils is crucial in determining the best course of action to ensure a healthy harvest.
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Understanding Pistils and Their Role in Plant Growth
Pistils are an essential part of a cannabis plant’s reproductive system. They are the female reproductive organs that are responsible for receiving and fertilizing male pollen. Pistils are found on the flowers of the plant and are characterized by their hair-like appearance.
During the vegetative stage, cannabis plants develop leaves, stems, and branches. However, it is during the flowering stage that the pistils begin to form. As the plant matures, the pistils grow longer and develop a more prominent color, usually white or cream.
The pistils serve as the entry point for male pollen to fertilize the female plant. When a male plant releases pollen, it travels through the air and lands on the pistils of a female plant. The pollen then travels down the pistil and fertilizes the ovule, which eventually develops into a seed.
The pistils play a crucial role in determining the quality of a cannabis plant’s buds. The longer the pistils remain white and healthy, the more time the plant has to develop and produce resinous buds. Once the pistils begin to turn brown, it is a sign that the plant is nearing the end of its life cycle.
It is important to note that not all pistils turn brown at the same time. Some pistils may turn brown earlier than others, indicating that those buds are maturing faster. This variation in pistil color can also be due to environmental factors such as temperature, humidity, and light.
Identifying Brown Pistils in Week 2
During the flowering stage, it is normal for pistils to change color from white to orange or red. However, if pistils turn brown in week 2 of bloom, it could be a sign of a problem. Here are some ways to identify brown pistils in week 2.
Visual Inspection
The easiest way to identify brown pistils is through visual inspection. If the pistils are brown and shriveled, it is a sign that the plant is experiencing stress. Brown pistils can also be a sign of pollination, which should not occur until later in the flowering stage.
Photos
Taking photos of the plant can also help identify brown pistils. By comparing photos taken at different stages of flowering, it is possible to see when the pistils started turning brown. This can help identify the cause of the problem.
Other Signs of Stress
Brown pistils are often a sign of stress. Other signs of stress include yellowing leaves, wilting, and stunted growth. If the plant is experiencing stress, it is important to identify the cause and address it as soon as possible to prevent further damage.
Possible Causes of Pistils Turning Brown
When pistils turn brown, it can be an indication that the plant is approaching maturity. However, there are several other possible causes that could be contributing to this phenomenon. This section will explore some of the most common reasons why pistils might be turning brown during week two of flowering.
Strain Specific Characteristics
Some strains of cannabis are more prone to browning pistils than others. For example, some indica strains may start to turn brown earlier in the flowering process than sativa strains. Additionally, some strains may have genetics that cause them to produce more resin, which can lead to browning pistils.
Environmental Factors
Environmental factors can also play a significant role in causing pistils to turn brown. One of the most common causes is excessive heat. High temperatures can cause the pistils to dry out and turn brown prematurely. Similarly, low humidity levels can also cause the pistils to dry out and turn brown.
Another environmental factor that can cause pistils to turn brown is light stress. If the plant is exposed to too much light, it can cause the pistils to dry out and turn brown. This is particularly common when using LED lights, which can be very intense.
Pests and Diseases
Pests and diseases can also cause pistils to turn brown. For example, spider mites can cause the pistils to dry out and turn brown. Similarly, bud rot can also cause the pistils to turn brown and can be very damaging to the plant.
To prevent pests and diseases from causing pistils to turn brown, it is important to maintain a clean and healthy growing environment. This includes using clean pots and equipment, keeping the growing area well-ventilated with AC and fans, and monitoring the plants closely for any signs of pests or diseases.
Impact of Brown Pistils on Flowering and Harvest
When cannabis plants start producing brown pistils during week 2 of the flowering stage, it could be an indication of several things. The pistils are the female reproductive organs that pick up pollen from the male cannabis, which helps her to fertilize and produce flowers.
Here are some possible impacts of brown pistils on flowering and harvest:
- Maturity: Brown pistils can be a sign of maturity, indicating that the plant is progressing towards the end of its life cycle. However, this is not always the case, as some strains mature faster than others. It is best to refer to the seed bank or breeder’s information to determine the expected maturity time.
- Pollination: Brown pistils can also indicate that the plant has been pollinated by a male cannabis plant. Pollination can cause the plant to focus on seed production instead of flower production, resulting in lower yields and lower potency buds.
- Harvest Time: If the plant is not pollinated, brown pistils can be a sign that the plant is ready for harvest. It is recommended to wait until at least 50% of the pistils have turned brown before harvesting. However, waiting too long can result in a decrease in potency and flavor.
- Male Plants: If brown pistils are found on a male cannabis plant, it could be a sign that the plant is hermaphroditic, meaning it has both male and female reproductive organs. This can result in self-pollination and lower yields.
Preventive Measures and Solutions
1. Proper Feeding and Fertilization
One of the possible reasons for pistils turning brown is improper feeding and fertilization. It is essential to ensure that the plant receives adequate nutrients throughout its growth cycle. Overfeeding or underfeeding can cause stress to the plant, leading to brown pistils.
Growers should use high-quality fertilizers and follow the manufacturer’s instructions for proper application. It is also important to monitor the pH levels of the soil or hydroponic solution to ensure that the plant can absorb the nutrients effectively.
2. Ideal Grow Room Conditions
Grow room conditions can significantly affect the growth and development of the plant. It is important to maintain optimal conditions to prevent stress and other issues. The grow room should have proper ventilation to control temperature and humidity levels.
A carbon filter can help remove odors and improve air quality. Growers should also use a dehumidifier or humidifier to maintain the ideal humidity levels for the plant. The ideal temperature during the flowering stage is around 68 to 77 degrees Fahrenheit (20 to 25 degrees Celsius).
3. Effective Pest Control
Pests can cause significant damage to the plant, leading to brown pistils and other issues. Growers should implement effective pest control measures to prevent infestations. It is important to inspect the plant regularly for signs of pests and take appropriate action immediately.
Growers can use organic or chemical pesticides to control pests, but they should follow the manufacturer’s instructions for proper application. It is also important to maintain proper hygiene in the grow room to prevent the spread of pests.
Case Study: Wonder Woman Strain
Wonder Woman is a popular cannabis strain known for its high THC content and uplifting effects. However, growers of this strain have reported premature browning of pistils during the flowering stage, which can be concerning.
One grower reported on a cannabis forum that their Wonder Woman plant had brown pistils after only 32 days since the first pistil appeared. The plant looked healthy otherwise, but the premature browning of pistils was a cause for concern.
The grower suspected that the issue might be due to the coco coir they were using as a growing medium. Coco coir is known to retain moisture well, but it can also hold onto excess nutrients, leading to nutrient burn and other issues.
To address the issue, the grower decided to flush the plant with plain water and cover it with a tarp to reduce light exposure. After a few days, the plant showed signs of improvement, with new pistils appearing and the brown ones turning a more natural color.
It’s important to note that premature browning of pistils can be caused by a variety of factors, including genetics, nutrient imbalances, and environmental stress. It’s always a good idea to monitor your plants closely and make adjustments as needed to ensure they are healthy and thriving.
Trichomes vs Pistils: Understanding the Difference
When it comes to determining the optimal time for harvesting cannabis, understanding the difference between trichomes and pistils is crucial. Both trichomes and pistils play an important role in the growth and development of cannabis plants, but they have different characteristics and functions.
Trichomes
Trichomes are small, mushroom-shaped crystal resins that coat the surface of the cannabis plant. These resin glands contain the psychoactive compounds that are responsible for the plant’s effects. Trichomes start out clear and gradually become opaque as they mature. They can also change color from clear to milky white to amber.
To determine the optimal time for harvesting, growers often use a magnifying glass or microscope to examine the trichomes. When the trichomes are clear, the plant is not yet ready for harvesting.
When they turn milky white, the plant is at its peak potency. When the trichomes turn amber, the plant has reached its maximum potency but may also have a more sedative effect.
Pistils
Pistils are the female reproductive organs of the cannabis plant. These hair-like structures emerge from the calyxes and play an important role in pollination.
Pistils start out white and gradually turn orange or red as they mature. When the pistils have turned brown, it is a sign that the plant is past its prime and may have lost some of its potency.
While pistils can be an indicator of the plant’s maturity, they are not always a reliable indicator of its potency. Some strains may have pistils that turn brown early in the flowering stage, while others may have pistils that remain white or orange even when the plant is ready for harvesting.
Post-Harvest Care for Brown Pistils
When brown pistils appear in week 2 of flowering, it can be a sign that the plant is maturing faster than expected or that it has been exposed to environmental stressors. Regardless of the cause, it is important to handle the plant with care during post-harvest to ensure the best possible yield and quality.
Harvest
When harvesting a plant with brown pistils, it is important to do so at the right time. The ideal time to harvest is when the trichomes have turned cloudy and the pistils have turned from white to brown.
Harvesting too early can result in underdeveloped buds, while harvesting too late can result in overripe buds that are harsh and less potent.
Cured
After harvesting, the buds need to be cured to remove excess moisture and prevent mold growth. To cure the buds, place them in airtight containers and store them in a cool, dry place for at least two weeks. During this time, the buds will release excess moisture and develop a smoother, more potent flavor.
AIT
AIT, or After-Intensive Treatment, is a process that can be used to further enhance the quality of the buds. AIT involves exposing the buds to high humidity and low temperatures for a short period of time to increase their potency and flavor.
This process can be done using a humidity-controlled environment or by placing the buds in a sealed container with a damp cloth for a few hours.
Frequently Asked Questions
When should I expect pistils to turn brown?
The timing of pistils turning brown can vary depending on the strain of cannabis being grown. However, it is generally expected for pistils to start turning brown towards the end of the flowering phase, usually around week 6-8.
What causes pistils to turn brown early?
Several factors can cause pistils to turn brown early, such as heat stress, overfeeding, nutrient deficiencies, or light burn. Another common reason for early browning of pistils is pollination, which can lead to seed development and reduced potency.
How long does it take for pistils to turn brown?
The process of pistils turning brown can take anywhere from a few days to a few weeks, depending on the strain and growing conditions. Once the pistils have turned brown, it is a sign that the buds are maturing and nearing their peak potency.
Can pistils turn brown too soon?
Yes, pistils can turn brown too soon, which can be a sign of stress or other issues with the plant. If pistils are turning brown before week 6 of flowering, it is recommended to investigate the cause and make any necessary adjustments to the growing conditions.
Is it normal for pistils to turn brown in week 2?
No, it is not normal for pistils to turn brown in week 2 of flowering. If pistils are turning brown this early, it is likely a sign of stress or other issues with the plant. It is important to identify the cause of the stress and address it promptly to ensure healthy plant growth and development.
Should I be concerned if my pistils are turning brown early?
If pistils are turning brown early, it is important to investigate the cause and address any issues promptly. Early browning of pistils can be a sign of stress or other issues with the plant, which can affect the overall health and potency of the buds.
By identifying and addressing the cause of the stress, growers can help ensure healthy plant growth and development.

Hey, I’m Lisa and I’ve been an avid gardener for over 30 years. I love writing, talking and living in the garden! Feel free to connect with me on my socials below