Humidity levels in a grow tent can either help or diminish your wonderful plants from performing at their best. You want luscious, full, and very nice green leaves that are moist and lush without being too dry. You want vigorous stems, roots, and vines that don’t wither or break easily. You also want the soil to be a nice soft consistency that isn’t too wet or too dry.
Outdoors, natural wet weather like rain helps create the ideal environment for plants to grow. But indoors in grow tents, there is a big chance you will run into humidity problems.
Plants release moisture through their leaves, so it’s not just the water you’re adding to the soil when you water them that raises moisture levels. There are many other things going on and you may need to know how to lower the humidity in a grow tent.
Tell-Tale Signs of High Humidity
How can you tell that you even need to lower the humidity? For those of you who own a hygrometer, there is an easy answer to this question. The hygrometer measures the humidity in a specific square footage area.
Full-grown adult plants will require a humidity level of between 55% and 60%. Younger plants will require a higher humidity level of at least 60% and possibly even up to 70% because their smaller leaves and stems release moisture at a faster rate than adults.
If your humidity levels are much higher than those percentages, your plants will let you know. The soil will feel wet, cakey, and water-logged. The leaves will feel too plump and will droop from having too much water in them. You will also run into the trinity of high humidity – mildew, mold, and rot.
This will also affect your living space outside the grow tent. You might even see mold or mildew on your walls and ceiling above the grow tent. It’s not only ugly and unsightly, it can be hazardous to the people living in the space as well.
You Will Need a Dehumidifier
Both humidifiers and dehumidifiers are wonderful machines that will quickly work to solve all but the most persistent humidity problems. A dehumidifier will work to remove the moisture from your grow tent. You want to find one that has the following two characteristics:
- Covers enough square footage for your entire grow tent
- Has a built-in humidistat to control the humidity percentage levels
It’s worth it to invest in a dehumidifier that has these two features. The humidistat is not just a convenience factor. You will program in the lower humidity level that you need. Then set up the dehumidifier to run. Once it reaches that pre-programmed level, the humidistat will alert the de-humidifier to shut off. If the moisture level then starts to run too high again, the humidistat will sense it with its built in sensors. It will let the dehumidifier know to turn back on and suck the moisture out.
Combine your de-humidifier with a regular air conditioner to keep the temperature down and a CO2 greenhouse regulator that helps ‘breathe’ carbon dioxide over your plants.
A Proper Ventilation System Also Helps
When you encourage more air to circulate among your plants, that encourages the moisture that is emitted through their leaves to move around in the space; this helps lower the overall humidity. You should have proper ventilation through pipes, air conditioners (if feasible), and window fans.
Combined with extraction fans, ducting pipes will bring in cooler air and remove the warmer, moister air. This process is called air exchange. It not only lowers the humidity, it lowers the temperature to prevent that ‘jungle’ feel, and it brings in fresh carbon dioxide for your plants to breathe in. Remember that they have to take in CO2 and then emit fresh oxygen.
These types of ventilation systems are better for smaller grow tents and grow rooms. If you have a larger space and are a serious grower, go the de-humidifier route instead.
The Grow Tent Greenhouse Effect
Unnaturally high humidity levels can start to create big problems in as little as 24 hours. It doesn’t take long for your plants to start to wilt and droop. Invest in a de-humidifier set up to ensure that your plants will have a safe and healthy level of humidity. It will also prevent the need for home repairs, mold removal, and even wood rot. Moisture is your home’s No. 1 enemy.
So keep the grow tent happy and balanced with a humidity level that suits your plants in your miniature greenhouse.
Good info. Lucky me I reach on your website by accident, I bookmarked it.
Did you understand these facts on CBD OIL and Full Spectrum CBD Hemp Oil? Cannabinoids are isolated from hemp utilizing supercritical CO2 extraction. Thanks to modern technology, the resulting option is tidy, without unneeded waxes and heavy metals, naturally present in the plant, and the drawn liquid has a typical, oily consistency. CBD oil includes cannabidiol as a base active ingredient and may contain only trace quantities of tetrahydroxycannabidiol (THC). Functions as a memory enhancer, enhancing concentration and coordination of movements, removing swelling and persistent infections. It enhances the conduction of stimuli in the course of autoimmune illness (numerous sclerosis, amyotrophic sclerosis). It is advised by doctors and pharmacists as an antioxidant and compound that blocks the action of proinflammatory cytokines (proteins), e.g. in Crohn’s illness or ulcerative intestinal tract. RSO oil has a low CBD content, while high THC. Naturally, the key job of RSO is to cause a psychoactive impact, although it can likewise stimulate “sick” brain structures. It deserves understanding that supplements of this type is mostly used by individuals to whom basic treatment does not bring relief in disease. The synergistic (enhancing) action of CBD and THC relative to each other is utilized here. Both cannabinoids can do a lot more together than when used separately. In addition, they jointly stimulate the department of inactive nerve cells, nourish the fatty envelope of the nerves, and avoid myelin swelling that triggers loss of function in some autoimmune illness. There are likewise stories where marijuana in its natural type softened spasticity, reduced the frequency of convulsions and seizures, and reduced unpleasant scrapie in Parkinson’s disease. This is where the concept of getting RSO, intended only for chronically ill individuals, come from . Both cannabis oil type CBD and RSO likewise contain other cannabinoids, such as cannabichromene (CBC) and cannabigerol (CBG). The secret is not, nevertheless, that CBD often has actually a structure broadened to consist of flavones, flavonoids, terpenes, terpenoids, amino acids and omega acids. The difference is mainly due to motives guiding mankind to use one or the other product. CBD medical cannabis oil is a rather beneficial blend of cannabinoids, designed to protect against 21st century illness. It’s best to use all of these substances together, as nature developed them and enclosed in cannabis inflorescences. It turns out that cannabidiol improves the effects of cannabichromene (CBC) and cannabigerol (CBG), and flavonoids or flavones enhance the absorption of these compounds. Omega-6 and omega-3 extremely nourish the body and do not enable to change, which speed up the aging process of the organism and boost the development of cancer. Oil of cannabis in a type of hobby APR includes little quantities of CBD, balanced by the existence of THC. Makers concentrate on the synergistic effect of one compound relative to the other, while deserting the existence of CBC and CBG. Why such a choice? – Modern clinical research reveals that CBD + THC manage serious autoimmune diseases, while CBC or CBG reveal very little activity in the presence of both compounds, simply like flavonoids, terpenes or flavones, for that reason their material in the solution seems to be unnecessary. In addition, the cannabis stress from which THC and CBD are obtained include minimal quantities of other cannabinoids. RSO oil is totally unlawful in Poland, which is why it can not be obtained in any legally running shop on the market. Obviously, there are a number of amateur techniques for getting it, however it’s excellent to know that compounds obtained synthetically in home laboratories are unpredictable, untried, and the result unknown. The solvent for the production of family RSO is typically gas, alcohol and even kerosene, which rather of curing, toxin. Alcohols and their like impair cannabinoids, and so in reality, they do not bring anything brand-new to the medical world. Marijuana oil has actually already marked a new period in which guy stopped to fear what is unidentified, and started to uncover what our forefathers had actually currently discovered and utilize the significant potential, in the beginning glimpse, a little unusual relationships, associated mainly with pathology. Medical marijuana, contrary to its name, does not indicate fermented female inflorescences and leaves containing psychoactive compounds coiled in so-called “Joints”, however an advantageous oil without psychoactive THC. A basic individual, after taking dosages of medical cannabis and achieving the suitable state of cannabinoids in the blood, can take pleasure in increased immunity, decreased vulnerability to cancer, delayed aging and lowered risk of stroke or heart attack. CBD oil includes cannabidiol as a base active ingredient and might consist of just trace quantities of tetrahydroxycannabidiol (THC). RSO oil has a low CBD material, while high THC. Both cannabis oil type CBD and RSO also contain other cannabinoids, such as cannabichromene (CBC) and cannabigerol (CBG). CBD medical cannabis oil is a rather useful mix of cannabinoids, created to secure versus 21st century disease. Oil of marijuana in a kind of pastime APR consists of small quantities of CBD, stabilized by the presence of THC.
Hi Corene,
Thank you for this rather long but interesting piece discussing CBD, THC and RSO oils.
Hello! I just would like to give a huge thumbs up for the great info you have here on this post. I will be coming back to your blog for more soon.
Thanks Terry!
That’s not a grow tent that’s a green house. Maybe if you actually grew your own you would know this, or at least have pictures to use.
Hi Burt,
Thanks for the comment and observation. I concede it does look like a more rigid structure than a grow-tent, but being an external soil based unit I think the structure needs to be better fixed but the poles and non-rigid cladding marks it as a sort of tent.
I do agree that ‘greenhouse’ has become generic for external structures rather than just the traditional fixed and glass-clad greenhouse of old.
I think we all agree that internal solutions are ‘grow-tent’ solutions and being protected by walls, can be very lightweight and not so rigid. What we wanted to try and convey is that growing can be contrasted between hydroponic and soil-based systems and soil usually means an external ‘climate- controlled’ environment and usually a more commercial and scaled up approach.
My growing experience is limited but the purpose of the site is to share information, not just from me and the writing team’s experience, but from many sources of value so that we can give the best information we can to our visitors.
If we do make, or feature, the occasional mistake, we do appreciate being told about it and I also apologize in advance 🙂
In reference to valuable information for those able to do more on the growing front where this is now legal (which I am not able to do here in China) I do recommend the ILGM ‘Grow Bible’ by Robert Bergman. Cheers and thanks!