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Why Flushing Cannabis Plants Before Harvest is Crucial

18.04.2023 0

As cannabis cultivation becomes more widespread and accepted, it’s important for growers to understand the various aspects of the plant’s lifecycle. One crucial step in harvesting cannabis is flushing, a process that clears out any residual nutrients from the plant’s system. Flushing can help to enhance the quality, taste, and potency of the final product, but many growers remain perplexed about the specifics of the process. In this article, we’ll explore the importance of flushing cannabis plants before harvesting and provide step-by-step guidance on how to get it right.

What is Flushing?

As harvest time approaches, cannabis growers often use a method called “flushing” to improve the quality and potency of their plants. Flushing involves using water to “flush out” any remaining nutrients and minerals from the soil or growing medium that may have built up over the plant’s growth cycle. This process allows the plant to use up any stored nutrients and minerals, leading to a cleaner and smoother smoking experience. But what exactly is flushing and why is it so important? Let’s dive into the details.

Why it Matters

Flushing cannabis plants before harvesting is a crucial step in ensuring the quality and potency of your final product. It matters for several reasons:

• Removes Excess Nutrients: Flushing is the process of giving your plants only water for a period of time before harvest. This forces the plant to use up any excess nutrients that have built up in the soil or growing medium. If these nutrients are not flushed out, they can impact the taste, smell, and overall quality of your buds.
• Improves Flavor: Along with removing excess nutrients, flushing also allows the plant to break down any remaining nutrients in a more natural manner. This can lead to a better taste and smell profile for your buds since the plant won’t have an abundance of nutrients affecting the flavor.
• Reduces Harshness: Flushing can also help to reduce any harshness in the smoke. If the plant has an abundance of nutrients, it can cause the smoke to be harsh and unpleasant. Flushing helps to remove these excess nutrients, leading to a smoother smoke.
• Increases Potency: Flushing can lead to a higher concentration of THC in your buds. When the plant is forced to use up any excess nutrients, it can also pull out any remaining chlorophyll. This can result in buds with a higher potency and a cleaner burn.
• Prevents Health Issues: Leaving excess nutrients in the plant can lead to health issues such as nutrient burn or a buildup of salts in the soil. Flushing helps to prevent these issues, allowing your plant to grow and thrive without any negative impacts on its health.

Flushing matters because it can remove excess nutrients, improve flavor, reduce harshness, increase potency, and prevent health issues. Skipping this step can negatively impact the overall quality of your cannabis and the experience of the user.

How it Works

Flushing works by removing any excess nutrients, minerals, and salts from the soil or growth medium used to cultivate the cannabis plants. This is achieved through the introduction of clean water in large enough quantities to wash out any build-up of these substances.

During the growing cycle, cannabis plants absorb nutrients through their roots in order to fuel growth and produce buds. If too many nutrients are present in the soil or growth medium, the plant may continue to absorb them even when they are no longer needed, which can cause a buildup of excess nutrients in the plant tissues.

This is where flushing comes in. By ensuring that the plant is only taking in clean water in the last few weeks before harvesting, any excess nutrients are flushed out of the plant. This helps to improve the taste and quality of the buds, as well as reduce harshness when smoking.

In addition to improving the taste and quality of the buds, flushing can also have a positive impact on the overall health of the plant. By removing excess nutrients from the soil, the plant is forced to use up any remaining nutrients in its tissues, which can result in a healthier, stronger plant.

The process of flushing is essential for any grower looking to produce high-quality cannabis buds. By removing excess nutrients, minerals, and salts from the plant, it can significantly improve the overall quality of the final product.

Table: How Flushing Works

How to Flush

One of the most important steps in producing high-quality cannabis is flushing the plants before harvesting. This process involves removing any excess nutrients and other residues from the plants’ systems, resulting in a cleaner, smoother smoke. Flushing is relatively easy to do and can be completed in just a few simple steps.

Step 1: Stop Nutrient Supply

The first step in flushing your cannabis plants is to stop supplying them with nutrients. This can be achieved by simply watering your plants with pure, pH-balanced water for a few days leading up to the harvest.

Step 2: Water with Pure Water

After cutting off the nutrient supply, you can begin watering your plants with pure water. This will help flush out any excess nutrients that may have built up in the plants’ systems. Be sure to use water that is free of chlorine and other chemicals, as these can have a negative impact on the plants’ quality.

Step 3: Check pH Levels

It’s important to monitor the pH levels of your water during the flushing process. You should aim for a pH level of around 6.0 to ensure optimal nutrient uptake and to avoid any potential pH-related issues that may affect the quality of your cannabis.

Step 4: Observe the Runoff

When watering your plants during the flushing process, be sure to observe the runoff from each pot. This can give you an indication of how well the flushing process is going and whether any excess nutrients are still present in the plants’ systems. If the runoff is discolored or contains particles, you may need to continue flushing for a bit longer.

Step 5: Time Your Flush Properly

The timing of the flush is important to achieve the best results. In general, most growers recommend flushing for 10-14 days before harvest. However, some strains may require longer or shorter flushing periods, so it’s important to research your specific strain and adjust your flushing accordingly.

By following these steps and monitoring your plants carefully, you can achieve optimal results and produce high-quality cannabis that is smooth, flavorful, and potent.

When to Flush

When to Flush Your Cannabis Plants

One of the most common questions growers ask is when to initiate the flushing process. The timing is crucial to get the best results from your cannabis plants. Below are the different stages when you should start flushing your plants.

During the seedling or clone phase, flushing is not always necessary as the plants are still in their early growth stage. Once they enter the vegetative phase, it’s essential to start flushing at least one to two weeks before switching to the flowering phase, to ensure there is no nutrient buildup or toxicity. This helps the plants to utilize up all the excess nutrients present in the soil or growing medium.

When your plants start flowering, it’s time to begin the final flushing process. This phase should begin at least two to three weeks before harvest to get the best results. This final flushing allows the plants to use up any remaining nutrients while ensuring that there are no unwanted chemicals or residues left in your buds.

It’s essential to remember that different strains of cannabis can have varying flushing requirements. Some strains may require longer periods of flushing, while others may require less. Keep an eye on the trichomes; when they start turning cloudy or amber, this is a sign that it’s time to begin the final flushing process.

The Benefits of Flushing

Flushing your cannabis plants before harvest can provide a range of benefits that are worth considering for any grower. By taking the time to flush your plants, you can improve the quality and potency of your final product, as well as ensure that your plants are as healthy as possible. The benefits of flushing are numerous and diverse, and all stem from the same basic principle: by removing excess nutrients and chemicals from your plants’ systems, you’re allowing them to naturally use up stored energy and produce a cleaner, better-tasting finished product. Let’s take a closer look at the specific benefits of flushing your cannabis plants.

Better Taste and Smell

When it comes to harvesting cannabis plants, one of the most important steps is flushing. While many growers may overlook this crucial process, it can actually have a significant impact on the quality of your final product, including the taste and smell of your buds.

Better Taste: Flushing cannabis plants for a period of days to weeks before harvest can lead to a noticeable improvement in the flavor of your buds. During the flushing process, any remaining nutrients in the plant’s system are removed, ensuring that they do not affect the taste of your final product. By doing so, the natural flavors of your cannabis can be more easily discerned, leading to a more enjoyable and rich smoking experience.

Better Smell: Similarly, the flushing process can also improve the aroma of your buds. When cannabis plants are fed nutrients during the flowering stage, it can lead to an excess buildup of salts and minerals in the plant’s tissues. These excess nutrients can affect the plant’s natural odor, leading to a harsh or unpleasant smell. By flushing the plant, you can remove these excess salts and minerals, promoting a cleaner, fresher scent.

In addition to better taste and smell, flushing your cannabis plants can also have numerous other benefits, such as increased potency, reduced harshness, healthier plants, and higher yields. However, it is important to avoid common mistakes such as not flushing for long enough or overwatering during the process. By taking the time to properly flush your cannabis plants before harvest, you can ensure that you are getting the highest quality buds possible.

Reduced Harshness

When cannabis plants are not properly flushed before harvest, they can contain built-up nutrients and chemicals that can make the smoke harsh and unpleasant. Flushing, on the other hand, can help reduce the harshness of the final product.

How does flushing reduce harshness?

When you flush your plants, you are essentially giving them a “cleanse” by using only water instead of nutrients. This helps to remove any excess nutrients or chemicals that may have accumulated in the plant’s tissue. When these chemicals and nutrients are burned, they can create a harsh and unpleasant smoke.

What are the benefits of reducing harshness?

Reducing the harshness of your cannabis can make smoking or vaping a more enjoyable experience. If the smoke is too harsh, it can cause coughing and irritation, which can be unpleasant for both recreational and medical users. By reducing harshness, you can make the smoking or vaping experience smoother and more enjoyable.

How does flushing affect the taste of cannabis?

Flushing before harvest can also improve the taste of cannabis. By removing excess nutrients and chemicals, the natural flavors of the plant are more prominent. This can result in a more nuanced flavor profile that is not overshadowed by harshness or chemical aftertastes.

What mistakes should you avoid when flushing to reduce harshness?

It is important to avoid overwatering during the flushing process, as this can lead to root rot and other issues. Additionally, using the wrong flushing agent can also be harmful. Make sure to do your research and choose a flushing agent that is safe and effective for your specific plants.

Conclusion: Flushing your cannabis plants before harvest is an essential step in producing a high-quality final product. By reducing harshness, you can improve the taste and overall smoking or vaping experience. Be sure to avoid common mistakes and use safe and effective flushing agents to ensure the best results.

Improved Potency

Improved Potency is another important benefit of flushing cannabis plants before harvesting. When you flush the plants, you are removing any excess nutrients and minerals which can affect the quality of the buds. This process ensures that the plant is left with only the essential minerals and nutrients it needs to thrive. As a result, the plant produces a higher concentration of cannabinoids, specifically THC, which is responsible for the plant’s psychoactive effects.

Flushing allows the plant to focus all of its energy on producing resinous, potent buds containing high levels of THC. This can lead to a more potent and enjoyable experience for the user. When THC levels are high, users can experience stronger psychoactive effects and enhanced therapeutic benefits.

To understand how flushing improves potency, we can take a look at the science behind it. When excess nutrients and minerals are present in the plant, it can cause a build-up of salts in the soil. This build-up can affect the plant’s ability to uptake nutrients and water. In turn, this can greatly harm the plant’s yield, potency and health.

Flushing helps to remove this excess build-up, ensuring that the plant can absorb nutrients and water more efficiently. This, in turn, leads to an increase in potency and a better overall yield.

The process of flushing is essential for those who want high-quality, potent buds. It is a simple and easy process that can yield significant benefits for your cannabis plants. By removing excess nutrients and minerals, you can ensure that your end product is of the highest quality, providing a better experience for you as a user.

Healthier Plants

Flushing cannabis plants before harvesting is not only important for improving the taste and potency of the final product, but it also has important benefits for the overall health of the plants.

By flushing cannabis plants, you are essentially giving them a chance to cleanse themselves of any excess nutrients or minerals that may have built up in the soil or growing medium during the growing process. When plants are given high doses of nutrients for an extended period of time, they will often retain some of these nutrients in their leaves and stems, which can be harmful when consumed. Flushing the plants helps to remove these excess nutrients and minerals, ensuring that the plants are free of any potentially harmful substances before they are harvested.

In addition, flushing can also help to reduce the risk of nutrient burns, which can occur when plants are given too many nutrients over a long period of time. Nutrient burns can damage the leaves and stems of the plant, which can ultimately impact the quality of the final product. Flushing can help to prevent this by allowing the plants to use up any excess nutrients and minerals that may have built up in the soil or growing medium.

Furthermore, flushing can also help to prevent pests and diseases from taking hold in the plants. When plants are given high doses of nutrients, they become more vulnerable to pests and diseases, since their immune systems are weakened. Flushing the plants can help to strengthen their immune systems, making them less vulnerable to pests and diseases.

Overall, flushing cannabis plants is an important step in ensuring that the plants are healthy and free of any potentially harmful substances before they are harvested. By flushing the plants, you can reduce the risk of nutrient burns, pest infestations, and other issues that can impact the quality of the final product.

Higher Yields

One of the main reasons for flushing cannabis plants before harvesting is to increase the yield. A proper flushing process can lead to higher yields because it helps remove excess nutrients from the soil and allows the plant to focus on producing more flowers. Here are some ways that flushing can improve yields:

• Improved Nutrient Uptake: When a plant is overfed or has excess nutrients in the soil, it can actually inhibit the uptake of other essential nutrients. Flushing allows the plant to flush out these excess nutrients and resume normal nutrient absorption, leading to a healthier and more productive plant.
• Reduced Stress: Overfed plants can experience stress and a reduced ability to produce flowers. Flushing helps alleviate this stress and allows the plant to focus on its natural growth and production processes.
• More Flowers: By removing excess nutrients and reducing stress, the plant can produce more flowers, which can ultimately lead to higher yields. Additionally, the flowers produced after flushing tend to be of higher quality and potency.
• Preventing Nutrient Buildup: Nutrient buildup can lead to a host of problems, including nutrient lockout, which can inhibit the plant’s ability to absorb essential nutrients. Flushing prevents these issues, leading to a healthier and more productive plant.

Flushing is a crucial step in ensuring the best possible yield from your cannabis plants. By removing excess nutrients and preventing nutrient buildup, you can create an environment in which your plants can thrive and produce the highest quality flowers possible.

Common Mistakes to Avoid

As with any gardening technique, there are common mistakes that can hinder the effectiveness of flushing your cannabis plants. It’s important to keep in mind these common missteps to make sure your efforts yield the desired results. Here are some key pitfalls to be mindful of when flushing your cannabis plants:

Not Flushing for Long Enough

One of the most common mistakes when flushing cannabis plants is not flushing for long enough. Flushing means removing any nutrients or fertilizers from the soil or medium that your cannabis plants are growing in. This cleanses the plant of any build-up of nutrients, allowing for a cleaner and more flavorful final product.

Flushing should not be rushed, as it can take anywhere from one to three weeks depending on the size of the plant, the growing medium, and the type of nutrients that were used. Flushing for too short a period can leave remaining nutrients in the plant, which can affect its taste, smell, and potency.

When it comes to flushing cannabis plants, patience is key. It’s essential to research the specific strains that you’re growing to determine how long you should flush for. Generally speaking, a minimum of one week is recommended, but two to three weeks may be necessary for some strains.

To avoid this common mistake, create a flushing schedule and stick to it. It’s also important to monitor the plants regularly during the flushing process, paying attention to their physical characteristics and the color of the leaves. By flushing properly, you can improve the final quality of your cannabis buds, resulting in a more enjoyable smoking experience.

Below is an HTML table showing the common mistake of not flushing for long enough, why it matters, and how to avoid it:

Overwatering During Flushing

During the flushing process, it is important to avoid overwatering your cannabis plants. Overwatering can cause the plant roots to become waterlogged and suffocate, leading to stunted growth or even death. Here are some tips to avoid overwatering during the flushing process:

• Use Proper Drainage: Ensure your pots or containers have proper drainage holes to prevent water from pooling at the bottom of the container.
• Water Sparingly: It’s best to water your plants sparingly during the flushing process. Only water when the soil or growing medium begins to dry out.
• Avoid Standing Water: Make sure to remove any standing water from your growing medium or trays to prevent water from pooling and causing root rot.
• Monitor Moisture Levels: Use a moisture meter to monitor the moisture levels in your soil or growing medium. This will help you determine when the plant needs water, and when it doesn’t.
• Consider Using a Drying Agent: Some growers use drying agents during the last few days of the flushing process. These agents can help to remove excess moisture from the plants and speed up the drying process.

Remember, overwatering during the flushing process can be detrimental to your cannabis plants. By following these tips and monitoring your plant’s moisture levels, you can avoid overwatering and promote better overall plant health.

Using the Wrong Flushing Agent

Using the wrong flushing agent can have negative consequences on the final product of your cannabis plants. Some growers make the mistake of using regular fertilizer or nutrients during the flushing process, which can affect the taste and potency of the buds. To avoid this mistake, it’s important to use the right flushing agent.

Here are some flushing agents to consider:

• Water: The simplest flushing agent is just plain, pH-balanced water. This will help remove excess nutrients from the soil or growing medium without adding any additional compounds that could impact the flavor or potency of the buds.
• Commercial flushing agents: There are many commercial products available specifically designed for flushing cannabis plants. These products contain a blend of natural compounds that help break down excess nutrients and flush them out of the plants.
• Home remedies: Some growers prefer to use natural, homemade flushing agents such as molasses or apple cider vinegar. While these may be effective, it’s important to do your research and ensure that they won’t have negative effects on your plants.

It’s important to do your research and choose a flushing agent that works best for your specific growing situation. Using the wrong agent can potentially harm the final product and undo all the hard work you put into growing your plants. Be sure to follow instructions carefully and flush your plants thoroughly to ensure the best possible harvest.

Flushing Too Early or Late

One common mistake when flushing cannabis plants is to do it too early or too late. Flushing too early can lead to underdeveloped plants, while flushing too late can cause a buildup of excess nutrients in the buds. It’s essential to flush at the right time, and the signs to look out for include:

• Trichome Color – Check the trichomes for ripeness. If they are mostly cloudy with some amber, it’s the right time to start flushing. If they are still mostly clear, wait a little longer.
• Plant Age – Flushing too early in a plant’s life can stunt its growth, so make sure that the plant has fully developed before flushing. Similarly, if you wait too long to flush, the plant will be too mature and may not respond well.
• Medium – The medium you use also affects when to flush. Soil retains more nutrients than hydroponic setups, so it’s essential to flush earlier in soil. Hydroponic setups require less flushing time.

To avoid flushing too early or late, it’s important to monitor the plant’s progress and pay attention to the signs mentioned above.

Flushing FAQs

As you learn more about flushing your cannabis plants, you’re bound to have some questions along the way. To help you avoid any confusion, we’ve compiled a list of the most frequently asked questions about flushing below. From the best flushing agent to use to the potential risks of over-flushing, we’ve got you covered. So, let’s dive into these flushing FAQs and get you the answers you need to successfully flush your cannabis plants.

How Long Should You Flush Cannabis Plants?

Determining the appropriate length of time to flush cannabis plants is essential. The amount of time you need to flush depends on various factors such as the type of strain, growing conditions, and the quality of water used for irrigation. In general, it is recommended to flush for at least two weeks before harvesting.

The duration of flushing depends on various factors:

Tips to determine the duration of flushing:

To determine the duration of flushing, observe the color of the trichomes using a magnifying glass or a microscope. Mature trichomes are milky white in color, and their shape is more rounded. When trichomes begin to turn amber, the THC has started to degrade, and it is time to harvest.

Besides monitoring trichomes, evaluating the overall health of the plant and the appearance of the leaves can also help to determine when to stop flushing. Yellowing leaves towards the end of the plant’s lifecycle are a natural process, but if these symptoms persist for a more extended period, it may indicate that the plant is not receiving enough nutrients.

It is essential to flush cannabis plants for at least two weeks, but the duration may vary depending on the strain, growing conditions, and water quality. Keep a close eye on the trichomes, overall plant health, and leaf appearance towards the final stages of the plant’s lifecycle to determine whether it’s time to stop flushing.

What is the Best Flushing Agent to Use?

When it comes to flushing agents, there are many options on the market. But with so many choices, it can be difficult to know which one is the best for your cannabis plants. Some of the most popular flushing agents include:

Ultimately, the best flushing agent for your cannabis plants will depend on your personal preferences and the specific needs of your plants. It’s important to do your research and choose a high-quality flushing agent that is safe and effective. Keep in mind that some flushing agents can be harsh on your plants if not used correctly, so it’s important to follow the manufacturer’s instructions and take care not to over-flush your plants.

Can Over-Flushing Harm Your Plants?

Over-flushing is a common mistake that many cannabis growers make when they are trying to harvest high-quality buds. While flushing your plants is essential to improve the taste, smell, and overall quality of your harvest, flushing for too long can harm your plants.

Here are some ways over-flushing can harm your plants:

• Nutrient Deficiencies: Flushing for too long can remove all the nutrients from the soil, and as a result, your plants can start suffering from nutrient deficiencies. These deficiencies can cause yellowing of leaves, stunted growth, and a decrease in yield.
• Reduced Potency: When you over-flush your plants, you are essentially starving them of the nutrients they need to produce high-quality buds. As a result, your buds may end up with reduced potency and overall quality.
• Increase Susceptibility to Pests and Diseases: Over-flushed plants are weak and vulnerable, making them more susceptible to pest infestations and diseases. Plants that have been flushed for too long have weaker immune systems, and they may not be able to fight off pests and diseases as effectively as healthy plants.
• Stressed Plants: Over-flushing can cause undue stress on your plants, which can result in stunted growth and a decrease in yield. Stressed plants are also more susceptible to problems like mold and bud rot.

While flushing your cannabis plants is critical to improve the quality of your harvest, over-flushing can harm your plants. It’s essential to flush your plants for the right amount of time and then provide them with the necessary nutrients they need to thrive. By avoiding over-flushing, you can help ensure a healthy and bountiful harvest.

Can You Flush Hydroponic Plants?

If you’re growing cannabis in a hydroponic system, you might be wondering if you need to flush your plants before harvest. The answer is yes, you definitely can and should flush hydroponic plants before harvesting them. Flushing is important whether you’re growing in soil or hydroponics because it helps to remove excess nutrients and salts from the plant’s tissue, resulting in a smoother, better-tasting smoke.

Here are a few things to keep in mind when flushing hydroponic plants:

• Use plain, pH-balanced water: When flushing hydroponic plants, you should use plain, pH-balanced water to avoid introducing any additional nutrients or contaminants into the system.
• Adjust pH: Make sure the pH of the water is between 6.0 and 6.5. This will help to ensure that the plant can still absorb any remaining nutrients that it needs while also allowing the excess nutrients to be flushed out.
• Flush for at least one week: Just like with soil-grown plants, you’ll want to flush your hydroponic plants for at least one week before harvesting. This will give the plant enough time to use up any remaining nutrients and allow the excess to be flushed out.
• Monitor runoff: As you’re flushing, make sure to monitor the runoff to make sure that it’s clear and free of excess nutrients. If you’re seeing a lot of discolored or cloudy runoff, you may need to flush for a bit longer.

Flushing your hydroponic cannabis plants before harvesting is an important step that shouldn’t be skipped. It can help to improve the taste and quality of your buds, resulting in a smoother smoke and a more enjoyable experience. Just make sure to follow the proper steps and use pH-balanced water to avoid any damage to your plants.

Conclusion

In conclusion, flushing your cannabis plants before harvesting is a crucial step in achieving the best possible quality and potency of your crop. By removing excess nutrients and salts from the soil, you can help the plant reach its full potential and produce a cleaner, smoother smoke with a more robust flavor and aroma. Not only does flushing benefit the end-product, but it also promotes healthier plants, which in turn can lead to higher yields.

However, it is essential to remember that flushing must be done correctly to achieve these benefits. Flushing for too short a period or using the wrong flushing agent can harm your plants, while overwatering during flushing can damage their roots. To avoid these mistakes, be sure to follow the guidelines for when and how long to flush, use a high-quality flushing agent, and carefully monitor your plants’ progress throughout the process.

Ultimately, the benefits of flushing outweigh any potential risks or challenges, making it a vital step for any serious cannabis grower. With the right approach, you can ensure that your plants produce the highest quality buds possible, with superior taste, aroma, and potency. So, take the time to learn about flushing, and you’ll be rewarded with a crop that’s not only more enjoyable to consume but also healthier and more profitable.

Frequently Asked Questions

How important is it to flush cannabis plants before harvest?

Flushing your cannabis plants before harvest is crucial to ensure the best possible taste, smell, and potency of the end product, as well as to avoid harshness and health risks.

What is flushing?

Flushing is the process of watering cannabis plants with only plain water for a set period of time before harvest in order to remove any excess nutrients from the soil or growing medium.

Why is flushing important?

Flushing is important because it removes any excess nutrients from the plants and cleaning out the soil or growing medium, enabling the plant to properly use the remaining nutrients and enhance the quality of the end product.

How long should you flush cannabis plants?

It is recommended to flush cannabis plants for 7-14 days before harvest to ensure all the nutrients are removed.

What is the best flushing agent to use?

Plain water is the best flushing agent to use, as any other substance can interfere with the taste and potency of the end product.

Can over-flushing harm your plants?

Over-flushing can harm your plants by removing too many nutrients, causing a nutrient deficiency and negatively impacting their growth and yield.

Can you flush hydroponic plants?

Yes, you can flush hydroponic plants by simply running plain water through the system until all the nutrients have been removed.

When is the right time to flush cannabis plants?

The right time to flush cannabis plants is when the buds are fully developed, and the white pistils are turning brown or orange.

Should you overwater during flushing?

No, overwatering during flushing can cause the plants to become too saturated, which can negatively impact their growth and yield.

What are the benefits of flushing cannabis plants?

Flushed cannabis plants produce a better taste and smell, reduced harshness, improved potency, healthier plants, and higher yields.

References

• The Importance of Flushing Your Plants Before Harvest
• Hydroponics – Wikipedia