CBD Grow Guide: CBD (cannabidiol) is typically the second most abundant ingredient in Cannabis after THC. While THC is well known for providing its users with a psychoactive high. CBD is non-intoxicating and could enjoy a more relaxed law in the near future now that private use is decriminalized. Research into CBD is still ongoing, though scientists have identified at least 60 different pathways through which it operates. It acts via various receptor channels and binds to different receptors in the brain such as serotonin and dopamine. More importantly, CBD is believed to be an anti-anxiety anti-inflammatory agent.
Although CBD reduces heart rate and blood pressure when used on animals. Tests have shown no such impact on humans under normal conditions. As it seems to be non-intoxicating, it has been approved for medical use on children. If cannabis is made completely legal, one can expect the CBD market to explode. With all the medical benefits and all the information available on growing Cannabis, growers all over are trying to grow high-CBD strains.
When you get it right, you can potentially save a small fortune by eliminating the need to buy expensive CBD oils and extracts. In this guide, we will show you how to grow high CBD Cannabis for personal use.
All about Genetics
There is no way to make or force your cannabis plants to produce more CBD than is genetically possible. For example, there is nothing you can do to transform a high-THC strain such as Silver Haze into something like ACDC which has a 20:1 CBD to THC ratio.
In cannabis reproduction, plants grown from seed can express so many different phenotypes unless it is a clone. In other words, two offspring from the same cannabis plant can have very different genetic features.
Aside from using clones from plants that have produced high-CBD strains. Your other possible option is to talk to breeders about the phenotypes that could develop from their strains. It will be extremely disappointing to spend weeks or even months into a crop of potential CBD-rich plants, only to find that they are THC dominant.
High CBD Cannabis Needs Early Testing
If you choose to play the genetic lottery and grow high CBD Cannabis from seed, make sure you get samples tested by a reputable lab while the plants are still young. Most expert growers agree that you should perform testing 3-4 weeks after the seedlings emerge from the soil. By doing this, you can identify CBD-rich plants long before they start to flower.
To perform this test, take a few of the plant’s top nodes as a sample. Make sure they are dried before submitting them to the lab. Through this process, you can identify CBD-rich plants and take cuttings from them for growing immediately or wait until fully mature.
If you’re unable to get your plant samples tested, you’ll have to wait until the flowering stage. At that stage, the only real option is to consume some to determine whether it offers a psychoactive high or not. If you feel noticeably stoned, then the plants contain too much THC.
How Does the Growing Process Affect CBD?
You cannot force a plant to produce more CBD than is genetically possible, but you can trick it into producing the maximum amount possible.
A 6-year study on hemp found that there were specific growing conditions associated with CBD-rich plants. Though it is important to note that while the study was both lengthy and detailed, it only tested 20 samples. If you have managed to get seeds with the right genetics, your next step is to make sure your plants are in soil that is slightly warm. Also, the more precipitation the hemp was exposed to in the study, the lower the CBD content. Also, make sure your growing temperature is between 20 and 21 degrees Celsius. When it comes time to water, make sure to use a very light hand.
Final Thoughts on our CBD Grow Guide
The main reason to focus on CBD-rich strains is for its medicinal value to us. Also, now that we can grow freely in the privacy of our homes, there is no reason you shouldn’t check how green your thumb is.
Although your electricity bill is likely to increase. The added expense is more than rewarded by what you’ll save by not having to purchase Cannabis elsewhere.
The amount of CBD produced by a plant ultimately varies according to the strain, lighting, and other factors. However, for argument’s sake, it is likely that you’ll grow a gram of usable weed per watt of light used. If you use a 400W HPS lamp, for example, you can produce up to 400 grams of usable marijuana, which equates to 14 ounces.
The key to growing high-CBD marijuana strains at home is to identify a strain that’s likely to produce CBD in larger (or equal) amounts as THC. Once you have been successful and identified a strain with appropriate genetics, make sure you use clones instead of seeds to avoid guessing in the future.
After choosing the right clones, grow the plants in a room with a relatively high temperature. Resist the urge to overwater them. In the end, you will be able to grow high-quality medicinal Cannabis. Save a small fortune compared to what you would pay for high-CBD Cannabis or edibles from another source.
We hope you now have a better understanding of what factors are needed to produce high-CBD Cannabis. Start with a good foundation of growing experience and reliable genetics and you will be successful at producing your own green medicine.
Written, January 2019
~ Medical Cannabis Seed Bank