How To Test Soil pH Cannabis. 3 Best Options

Learning how to test soil ph cannabis will be advantageous to all growers, especially when they understand the three options. Remember that as a grower, learning the ins and outs of growing cannabis, such as providing the optimal environment like the greenhouse makes a big difference with yield quality. More than the area, remember that other factors like the soil will be influential to success too. 

Providing the ideal pH of the soil for cannabis is as essential as other crops. Soil pH affects the productivity of the soil, which reflects potential plant problems. With cannabis, soil pH testing gives you information on the soil’s acidity and alkalinity, which is useful for ensuring optimal growth and flowering. 


How To Test Soil pH Cannabis. 3 Best Options

How To Test Soil pH Cannabis For Beginners


Choose your method


Option #1. Soil testing facilities

The first method for testing soil pH is checking certified soil testing laboratories and finding the nearest one for your location. You might find this option more convenient for your circumstances because they will do the testing for you and all you need to do is send the sample. The University of Massachusetts has provided a checklist that you can go to if you’re going to send soil samples. 

The factors you want to remember and apply to cannabis production include doing media tests in the growing season or sending a sample two hours after fertilizing. You also don’t want to send soil with slow-release fertilizer pellets. Then, stick to your chosen soil testing method when interpreting the results and never compare the results from one facility to another since they might differ in testing methods. 


Option #2. Handheld pH meters

The second method for testing soil pH for cannabis is more DIY-friendly but still doable by any gardener using a pH meter. In general, there are two techniques, but both are straightforward and involves inserting the probe on the soil. Learning how to use a pH meter offers many benefits. 

They include being able to readily test on your greenhouse anytime and get the results immediately. It saves time and money, and you can quickly make the necessary adjustments for your cannabis plants. However, be diligent in the method you chose, so you get reliable results. 


Option#3. Testing kits

Another DIY-friendly method is the use of testing kits. Compared to using a pH meter, a testing kit uses water and a testing solution. You’ll add these two to the soil, and you can quickly determine the pH using a colored chart. 

Testing kits are also quite affordable, and you can choose from several types to find a method you think is easy to do. Nonetheless, the concept is merely mixing soil with dechlorinated water and insert the testing material. You’ll take note of the color change and use the chart to get the pH. 


How to adjust soil pH for cannabis

In general, you want your soil for cannabis to have a pH range of 6 to 7. Being out of this range puts your plants at risk of having trouble getting their needed nutrients for growth and flowering. While having a pH range between 6 and 7 is easy to achieve, you need to know some techniques for adjusting the pH if your soil ends up being too acidic or alkaline. 

After you tested your soil pH, take note if the result is 5 below or 7 and above. A pH level measuring 5 and lower indicates acidic soil while having 7 and above means that your soil is alkaline. Either way, they are out of the recommended range that promotes health and productivity. 


How to make the soil more acidic

If your soil needs a lower pH, it means you need to raise its acidity. To do so, use an acidifier to increase the sulfur content of the soil. Check how strong your acidifier is and compute how much you’ll need for your soil to correct the pH level. 


How to make the soil more alkaline

On the contrary, if the pH is too low, you need to raise it and make the soil more alkaline. You can use lime and gauge how much you’ll need depending on its direction and soil adjustment required. With some knowledge, you can also rely on either acid or base to adjust the soil pH where adding more or fewer influences acidity or alkalinity. 


Importance Of Soil pH For Cannabis

As mentioned earlier, soil pH is a crucial factor for all growers because of its effect on the plants’ growth and flowering. The relation is from the influence of pH on the plant’s capacity to take nutrients and thrive. Having a pH range not ideal for cannabis can also lock out other nutrients and cause deficiencies. 

Another factor where soil pH plays a role is on the beneficial microbes in the soil. The microorganisms in the soil help enrich it by breaking down fertilizer, and this process would be easier if the microbes are within the ideal pH range. 



Growing cannabis requires dedication in learning and applying the optimal requirements of the plants. This involves learning how to test soil ph cannabis to ensure that your plants are taking their nutrients well and the soil’s microbes are doing their job. You have three options to test soil pH, and they include testing facilities, pH meters, and testing kits. 


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How To Prevent Root Rot In Hydroponics: 3 Useful Tips

If you’re a newbie gardener who’s looking to find ways to hone your skills, you’d want to learn how to prevent root rot in hydroponics even before this problem affects your plants.

Hydroponics can be advantageous to crops in more ways than one. However, it also comes with risks of diseases, such as root rot, which can be destructive or even lethal to your plants.

Unfortunately, there are no effective methods to recover the wilted parts that were affected by the root rot once it hits your plants. The only thing you can do if you do not want this catastrophe to befall your crops is to prevent it before it happens. Read on to learn more about this subject.


What is Root Rot?

Root rot is a disease that attacks the plant roots and causes them to suffer decay. This usually happens when a lack of oxygen supply occurs in the substrate.

To give you an idea, think about plant roots that are submerged in water that only has a little oxygen in it. Over time, the plant suffocates and dies.

Aside from rot and decay, this disease also leads to the proliferation of fungi that are naturally present in the soil. These include Rhizoctonia, Alternaria, Pythium, Botrytis, Fusarium, or Phytophthora. As soon as fungi colonies start to grow, they tend to target the weakened roots and infect your precious plant babies.

Once the plant becomes infected, they won’t be able to take in what they need to grow – water, oxygen, and other nutrients. When this happens, it won’t be long before the plant dies.


What is Hydroponics?

In case you’re not aware, the term hydroponic is derived from a Latin word that means “working water”. To put it simply, hydroponics is an art that involves growing various types of plants without soil. If you’re like most people, the first thing that comes to mind when somebody talks about hydroponics would be a picture of plants with roots suspended into the water without using any type of growing medium.


Avoiding Root Rot in Hydroponic Systems

Detecting and identifying root rot can be tricky. When your plants get infected, their leaves and roots gradually wither until the whole crop itself dies from the lack of nutrients, which is a common symptom of many diseases.


What causes root rot in hydroponics?

One of the requirements in hydroponics systems is oxygen. Without it, your plants are basically on the road to death. On the other hand, lack of such is one of the major triggers for root rot, and it must be avoided at all costs.

Just like when planting in soil, you loosen up the ground so that your plants’ roots can have their required intake of oxygen. That is the case for crops grown in aqueous solutions as well. If they cannot breathe, they would not be able to grow.

Another agent for root rot is the temperature. The last thing you would want in your system are parasites that leech nutrients intended for your plants and infect the water during the process. In common terms, these fungi are called molds.

One of the best breeding grounds for these is warm and moist areas. For this reason, if the water temperature inside your reservoir is high, then you are susceptible to it. Something as minor as letting the solutions exposed to sunlight can already be a risk factor.


3 Useful Tips on How to prevent root rot in hydroponics

There is good news! Root rot in hydroponics can be prevented! Just follow these tips:

Tip#1: Use the right air pump

If you do not want root rot to affect your plants, you merely have to avoid its causes. If you need oxygen, keep the water bubbling by providing an air pump of appropriate size, and also give importance to proper ventilation in the room.


Tip #2: Maintain the temperature

The temperature should be maintained within the 70 to 80 degrees F range. Get rid of any materials that can make your system vulnerable to infections, and make sure not to disturb your crops while they are trying to grow.


Tip #3: Get rid of the rotten parts

However, if you failed in preventing the disease, then the rotten parts should be removed immediately. Cut them off as there is no chance of reviving them, and focus on the potential new growth instead. Fix your hydroponics system and eliminate the risks.


Why Give Greenhouse Gardening a Try?

Greenhouse gardening offers numerous benefits to greens aficionados who dare to take their gardening experience to the next level. Aside from acting as a shield against the effects of inclement weather, a mini, hobby, or semi-pro greenhouse can also serve as a protective layer that keeps harmful bugs and critters at bay.

What’s more, its enclosed structure allows you to control your plants’ growing conditions including the temperature, light, moisture, and ventilation of the greenhouse’s internal environment. With a controlled environment, you’ll be able to extend growing seasons and grow plants that aren’t native to your area.



No matter how well-informed you are about how to prevent root rot in hydroponics, you cannot completely eradicate the risks. Therefore, to avoid the worst-case scenario, you should be prepared to sacrifice the infected for the sake of others. While you’re at it, consider trying your hand at greenhouse gardening as well.


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