How to Increase THC When Growing Weed
Table of Contents
Increasing Cannabis Potency During the Growing Process
When it comes to growing cannabis, there are lots of different goals by different growers. Many growers are growing medical marijuana for medical-related purposes. Others are growing for their personal adult use. For many growers, including both medical marijuana and recreational cannabis growers, a common goal is to maximize the amount of THC and other cannabinoids produced when growing cannabis (ie increase the “potency” of your buds).
This cannabis bud was grown to produce the highest levels of THC possible – as a side effect it is dense, sticky and looks great.
Why Increase Maximum THC Levels?
- Greater mental and psychoactive effects from the same amount of bud (your harvest will go further!)
- Many medical marijuana growers desire high THC levels for the relief of nausea, certain types of pain, spasticity, certain symptoms of multiple sclerosis, etc.
- Many of the things you do to increase THC levels will also increase your overall cannabis yields.
However, not every grower wants the highest levels of THC in their bud, and may actually be seeking other cannabinoids found in certain strains. For example, there are many medical marijuana growers who prefer low-THC, high-CBD cannabis, which is non-psychoactive and may be of interest to those looking for possible relief from anxiety or seizures. Learn more about the difference between CBD and other cannabinoids like THC (unfortunately you can’t use grow methods to increase CBD levels, you need to start with a low-THC, high-CBD strain).
Much of the THC and “potency” in your buds is contained in the sparkly trichomes
What increases THC levels and overall potency?
These are the most important factors that will affect your THC levels and overall marijuana potency:
Strain & Individual Plant Genetics
Your plant’s genes are hands-down the most important aspect of cannabis potency when it comes to growing!
Your plant genetics set the “upper limit” of how much THC and other cannabinoids your plant will ever be able to produce. Although you can use grow methods to maximize the THC within that limit, you will never be able to overcome the limits set by your strain and plant genetics.
So as a really rough example, let’s say your strain/plant genetics can only produce 15% THC at most. That means you may get less than 15% THC in your buds if you don’t grow the plant right, but no matter what you do you’ll never be able to increase it above 15%.
In order to get really high levels of potency and THC, it’s essential to start with high-potency, high-THC genes from a respectable breeder. Learn how to research strains so you get the most potent cannabis plant to fulfill your needs. If you’ve never ordered cannabis seeds before, learn how to get seeds delivered to the US and worldwide.
Some strains just don’t have the genetics to make cannabis buds as potent and trichome-covered as the one pictured here! Unfortunately, there’s nothing you can do to beat genetics so start with good genes!
Many cannabis growers don’t realizing they are actually harvesting their buds too early, dramatically reducing yields and potency!
There is a 2-3 week period during the flowering stage when plants are “mature” and buds are at the highest levels of THC. At this point, the tiny resin glands (trichomes) on the buds have turned milky white, and most of the white hairs (pistils) on the buds have darkened and curled in.
Highest Level of THC When…
Most white pistils have darkened and curled in (bud looks more “solid”)
Most clear trichomes (looks like glass) have turned white (looks like white plastic)
If the plant is allowed to keep maturing, the cannabinoid profile continues to change. Buds harvested on the later side tend to produce more of a relaxed “body” effect, though the psychoactive effects of THC may be somewhat reduced.
If you harvest earlier than this, the plant hasn’t reached its full potential. Sometimes early-harvested buds can produce a “speedy” effects, or give some people headaches (curing will help with this) so avoid harvesting early if you can!
Learn more about when to harvest cannabis (with lots more pics!)
Get the effects you’re looking for!
This cola has several weeks to go before it reaches its highest THC levels – harvesting now will reduce both your yields and your potency!
Plant Health & Care
In order to get your cannabis to produce the most potent buds possible, you need a robust, healthy cannabis plant with lots of bud sites getting direct light during the flowering stage. This means it’s important to avoid common plant health mistakes like overwatering, underwatering, heat stress, root problems, irregular light cycles, and nutrient problems. Check out our 7-step remedy to fix most cannabis plant growing problems. Try to maintain balance and avoid environmental extremes. Basically, treat your cannabis plant like it’s a celebrity – it gets everything it wants!
Although cannabis can grow in relatively low light conditions (it grows like a weed!), it will not produce significant amounts of bud without very bright light in the flowering stage. Cannabis uses light to power the growth of buds, along with the THC and cannabinoids contained inside. Outdoors your plant needs direct sunlight 8+ hours a day to produce to its fullest, and indoors you need strong, bright grow lights (like LEDs or MH/HPS grow lights) to produce the highest levels of THC.
Although there is no evidence that the curing process (jarring up buds after they’ve dried) increases THC levels directly, there is a lot of evidence that it increases the perceived potency of buds.
Though not well understood, this may be because there are chemical changes that happen during the curing phase that “intensify” the effects of THC and other cannabinoids.
The curing process also has other benefits for marijuana growers. For example, newly dried cannabis buds often smell like cut grass or hay, even if they smelled great in the flowering stage. The curing process helps get rid of the unpleasant grassy taste/smell and brings back the natural taste and smell of the cannabis plant.
Lastly, uncured and early-harvested buds can cause “speedy” thoughts or headaches for some people, and curing often reduces these negative effects.
Common Myth: Using CO2 increases THC levels
Although it’s true that using CO2 can increase your overall cannabis yields, there isn’t any evidence that it actually increases the potency of your bud. Learn about other ways to increase yields.
Unknowns: These Growing Methods May Increase THC But Aren’t Well-Tested
These are some of the common ways growers try to increase the THC levels of their cannabis. These techniques and methods are considered “unknowns” because there hasn’t been a whole lot of scientific testing to see what works and what doesn’t work as far as increasing THC.
Supplements to Increase THC and Overall Potency
There are many supplements for growing cannabis, and each one has a different purpose. Some supplements are great, while others are just snake oil.
When it comes to supplements for bud quality, most claim to increase yields or flavor as opposed to potency. However, there are some supplements that either claim or insinuate that they will increase the potency and/or THC levels in your cannabis.
Unfortunately, at this time there aren’t any supplement companies which have conducted systematic tests showing that their supplements will actually increase THC. Because of this, although it seems possible that some of these do work as stated, I can’t recommend any ones in particular.
If you know of any supplement manufacturers who have actually tested their products on real cannabis plants and can demonstrate that their supplements actually increase THC, we’d love to hear from you!
Allow Plant to Remain in Vegetative Stage For 8+ Weeks
I’ve heard this one from different growers over the years, but for now, the jury is still out. The idea is that a cannabis plant needs to remain in the vegetative stage for at least 8 weeks before being switched to the flowering stage in order to reach its maximum THC levels when it starts budding.
Cannabis plants which have been allowed to grow for at least 8 weeks in the vegetative stage tend to be much bigger and more robust than plants switched earlier, and they produce far greater yields. But does that mean that they produce higher levels of THC? It seems like it could be possible, but it might also be related to other factors. For example, big plants are usually grown under powerful grow lights, which affects potency, and are also often grown by more experienced growers. More testing is needed!
My idea for a test (hopefully someday I’ll get to do this when I get more room to grow!)
- Sprout several seeds from a very stable cannabis strain like Northern Light to reduce genetic variation between the plants
- Allow each seedling to grow out to 8 weeks in the vegetative stage, then take a clone off each plant. Although clones are the size of seedlings, they are the same internal “age” as their mother so in a way, these clones would already be 8 weeks old
- Sprout more seeds of the same stable strain and grow them until they’re about 3 weeks old so they’re the same size as the clones. You want to time this so that the seedlings are about 3 weeks old just as the clones are the same size and taking root. Seedlings can’t start flowering before 3-4 weeks old and we’re trying to create as close to the same conditions as we can between the two plants to reduce as many variables as possible.
- Now that you’ve got your 3-week seedlings and your “8-week” clones that are the same size, flower them together in the same conditions.
- After harvest, test the THC levels! If the buds from the clones are more potent than the ones from the seedlings I’d say it’s pretty good evidence that increased age increases potency. If not, well, back to the drawing board to try another test!
Letting plants get older before the switch to the flowering stage definitely results in bigger plants and higher yields, but we don’t know if it increases cannabis potency!
Lack of Pollination (Producing “Sinsemilla”)
Just a few decades ago pretty much all cannabis bud you could find was full of seeds. This is because at the time many growers didn’t realize that male and female cannabis plants need to be separated in the flowering stage to prevent the female plants from getting pollinated and making seeds.
However, once cannabis growers became more aware of growing techniques including how to prevent pollination, there was a rise in “sinsemilla” weed, a word which combines the Spanish word “sin” (without) and “semilla” (seed) to mean cannabis “without seeds.”
Seeds belong in your garden, not in your buds!
The sinsemilla bud that started flooding the market was much higher potency than the seedy, low-quality bud that had been available before. This led to the term sinsemilla being used to describe very high quality and potent cannabis. There’s no doubt that most growers prefer buds without seeds, but the term sinsemilla has led to the idea that cannabis buds without seeds were inherently more potent than seedy bud.
While this may very well be true, there isn’t much evidence that it’s actually the lack of pollination which caused the dramatic increase of potency experienced by cannabis enthusiasts at the time. Right around the time growers started producing non-seedy buds, the cannabis breeding scene was also starting to get established. Publications to assist cannabis growers like the High Times magazine appeared on the scene to help growers learn better growing techniques, and cannabis breeders like Nirvana started shipping cannabis seeds of famous strains to growers all around the world by mail order.
High Times Top Strains of 1977
Growing and breeding techniques were improving simultaneously. It’s possible that the increase in potency experienced by people who switched to seedless buds was actually the result of better genetics/breeding. These days, most people only get sinsemilla and no one really wants to do direct comparisons.
However, keeping buds from producing seeds will dramatically increase the perceived quality of your buds, as well as your yields, so regardless of whether it increases bud potency or not, it’s something every grower wants to do! Don’t let your female plants get pollinated – remove all male plants from your grow room immediately (or start with feminized seeds, which don’t produce any male plants)!
Type of Grow Light & Spectrum – HPS, LED & LEC Grow Lights
Different types of grow light produce different spectrums (colors) of light. There are some growers that believe that growing cannabis under the unique light spectrums of LED grow lights or LEC grow lights may increase resin production and THC levels. Other growers swear that you need powerful HPS grow lights to produce the highest levels of THC.
Special Ways of Flushing
During the flushing process of growing cannabis, a grower generally gives their plants just plain water for the last few weeks before harvest. This is done to encourage the cannabis to “cannibalize” itself and use up all remaining nutrients in the plant.
The idea is to get the plant to use up any nutrients that may have built up in the buds which could possibly affect that taste/smell after harvest
However, there are several additional types of flushes that many growers believe will increase THC levels. Most of these are done in addition to regular flushing, just before harvest. Unfortunately, there aren’t many (if any) tests determining which one of these work, but there are many experienced growers who swear by these methods!
Unfortunately, they don’t all match (for example some growers say to harvest in the morning, while others believe you get more THC if you harvest during the plant’s dark period), but these are the most common flushing techniques that I’ve heard to increase THC levels right before harvest.
These “flushing” methods may (or may not) increase THC:
- keep plant in the dark for 2-3 days before harvest
- harvest cannabis in the morning
- harvest cannabis during the plant’s dark period
- water plants with ice water before harvest
- chop down and hang entire plant upside down for a few days before trimming and drying buds
Air Temperature, Humidity and Overwatering
I wrote this section after reading the results of a 6-year study about industrial hemp. Although hemp is closely related to the cannabis, they’re not the same thing so these finding should definitely be taken with a grain of salt. In the study the researchers found the following environmental factors were associated with higher levels of THC:
- High humidity
- Warm air temperature
- Lower levels of precipitation (rain)
Since the study is based on hemp grown outdoors, it’s hard to know if these factors will influence the THC content of cannabis plants grown indoors, but I do think it’s a good idea to keep things warm (at least above 70°F/20°C which is the minimum recommended temperature for optimum growth) and avoid overwatering!
Common grower knowledge says that lower humidity towards the end of the flowering stage will raise THC levels, but this study makes me want to look into that further since the hemp in the study actually produced higher levels of THC at higher humidities!
Conclusion: Time to Grow More Potent Cannabis!
There are certain techniques that will definitely maximize the THC produced by your cannabis, and there are other methods which may increase potency but their effects are less certain.
If you are serious about increasing the THC levels in your cannabis, make sure to follow the top steps which are known to increase potency! Skipping any of those steps will reduce your potency for certain! Choosing the right strain, giving plenty of bright light, taking great care of your plants while they’re alive, and harvesting/drying/curing properly are the most important steps you can take to increase the THC levels of your buds!
But luckily for cannabis growers, most of the “unknowns” can’t hurt your plants, so there’s no harm in trying them out, too!
There are a few growing techniques known to increase the THC of buds, as well as several "unknowns" which may also have a big effect on potency. Learn what you need to do to get the results you want!
7 Tips to Improve Cannabis Bud Quality
by Nebula Haze & Sirius Fourside
Table of Contents
- Start with Top-Shelf Genetics – get the effects and appearance you want! Your grow skill makes a huge difference, but a plant can’t overcome its genes! If you want buds that are potent, dense, sparkly or purple/pink, you need the right genetics.
- Give Your Cannabis Lots of Light! – this increases yields, density and potency
- Nutrients & Supplements – learn about smell enhancers, bloom boosters and bulk builders!
- Better Taste, Better Smell – learn other techniques to increase terpene content so buds taste and smell better
- Manipulate Temperature & Humidity in the flowering stage to increase resin production (“glitter” and stickiness), bring out colors like pink or purple & prevent smells from burning away
- Great Air Flow Around Every Cola – you can gain surprising increases in the size and density of your buds by making sure that every cola gets lots of direct light and good air flow from the beginning to the end of the flowering stage. Cannabis is wind-pollinated in the wild and so more energy is put into buds that have been exposed to a breeze from when they first started forming.
- Master the Basics of Growing – especially harvesting, trimming and drying/curing! Although a lot of growers don’t pay as much attention to what happens to plants after harvest as during the grow itself, these 3 post-harvest factors determine almost 50% of your final bud appearance. Properly drying/curing also intensifies smell and increases bud potency!
Have you ever had weed that knocks your socks off? The kind of cannabis buds that people brag/warn their friends about?
I’m talking about the really really good stuff!
The truth is, you can successfully grow cannabis with very little effort, make a ton of mistakes, and still harvest buds that will do the job.
But have you ever wondered how people grow truly top-shelf buds? The kind of bud that beats the marijuana you get in a dispensary?
If so, you’re in luck, because today I’m going to teach you 7 tips to consistently growing top-tier quality cannabis buds with effects that will stick in your memory for years to come. Plus, I’ll teach you how to make your cannabis look pretty!
1.) Start with Top-Shelf Genetics
It’s really tough to get truly top-shelf buds if you start with mid-grade seeds, clones, or the dreaded bagseed; you’re giving yourself a much higher chance of disappointment because no growing method can overcome genetics!
These buds were both grown in the exact same setup at the same time, but have different genetics. Look how differently the buds turned out! Choosing the right strain lets you choose the looks and effects you want!
When I first started growing, I would grow any seeds I could find. These would usually grow pretty well but the resulting weed never ended up being as good as the buds I found them in. And sometimes the buds would be airy and not-that-potent.
After a few attempts at growing bagseed, I tried buying marijuana clones from the local dispensary with crazy strain names like “Super Grand Daddy Purple” and “Grapefruit Bubblegum Kush,” but my yields and results still left a lot to be desired. It’s not that there’s any inherent problem with clones – clones are awesome! – but I got a feeling these plants weren’t really the strains the dispensary claimed them to be. I didn’t have any grower friends at the time and I thought bag seed and local clones were my best choices.
Until I discovered online seed banks.
Ever since I started buying seeds from a reputable cannabis seed bank and getting my chosen strains shipped to me, I have been able to consistently produce high-quality buds!
Getting your genetics from a reputable breeder is key to producing gorgeous and potent buds!
If you want to grow buds that are pink or purple, you must choose the right genetics!
Just switching to better seed stock caused a dramatic increase in my yields without any other changes. But even more importantly, the quality of my harvests drastically improved. Not to mention the freedom of being able to choose which strain you want to grow instead of hoping to find a good seed in your buds!
Clones are still a great way to start a grow with good genetics, but you have to make sure you always get clones from a trustworthy source!
If you want to take your quality to the next level, don’t start with just any clones or seeds. Search for the right, true quality genetics and don’t be afraid to research to make sure you’re getting exactly what you want! Good seeds cost more than bagseed, but the money you pay for quality is worth it, especially when you consider what you’re getting in return!
2.) Give Your Cannabis Lots of Light!
If you want great bud, you have to provide plenty of light!
When you start a grow with good genetics – from good seeds or clones – your plant has the potential for a high level of quality (yields, potency, resilience). However, it’s nearly impossible to get your buds to reach that potential if you use lights that are underpowered.
Powerful grow lights like HPS, LECs or LEDs produce the biggest and most dense buds
For example, there’s no amount of plant training or growing skill that can make up for the amount of light produced by an incandescent bulb; the bulb simply doesn’t have what it takes to do the job.
Similarly, growers can have the same problem when they try to grow a larger plant with a few small CFLs or T5s. Although CFLs and T5s make great growing lights and produce a high-quality product, it’s important to pick the right tool for the job. These two types of lights are better at stealth, discretion, and smaller grows than producing lots of super potent bud.
Strong, bright light is what powers the growth of buds in the flowering stage – light is like “food” for your plants!
When it comes to indoor cannabis gardening, more light is better…to an extent. If you give your flowering cannabis plants all the light they can handle without giving them too much, it increases your potency, density and yields.
Strong, bright light is a crucial part of reaching a strain’s full potential!
Strong light is incredibly important for the highest bud density, potency and yields!
3.) Nutrients & Supplements to Increase Bud Quality
First, before adding any special supplements, you need to make sure you’re giving your plant the correct base nutrients in the flowering stage.
Base Nutrients in the Flowering Stage
- Low Nitrogen (N) – Give your plant relatively low levels of Nitrogen, especially in the second half of the flowering stage when the plant has stopped growing vegetatively and buds are fattening up. The plant needs a lot of Nitrogen for vegetative growth but doesn’t need nearly as much for making buds. In fact, too much nitrogen in the ripening stage can discourage bud production and hurt your yields.
- Plenty of Phosphorus (P) – Phosphorus is incredibly important to flower production and giving plants plenty of Phosphorus in the flowering stage will help increase the total number of flowers
- Potassium (K) – Potassium is often overlooked compared to Phosphorus (which is often considered a bud booster) but Potassium may actually be even more important! Providing a good source of Potassium increases the size and density of each individual flower.
In general, when it comes to feeding nutrients in the second half of the flowering stage, less is more! Keeping nutrient levels low can also improve the taste of your final buds because high nutrient levels are associated with a chemical taste to the buds.
Giving cannabis the right ratios of nutrients during the flowering stage will greatly increase the quality of your bud!
Supplements in the Flowering Stage
Supplements in the flowering stage come in many different flavors, and they have different goals or purposes
- Sugar or carbohydrates – improve taste/smell and increase bulk. Some of these, like the Botanicare Sweet Carbo Line, not only include sugar, but also certain terpenes and esters that are stored unchanged in plant buds, giving your buds unique subtle flavors like grape, citrus, berry, and “raw” (which is just a generally sweet smell).
- “Bloom Enhancers” – These offer a variety of non-nutrient ingredients that may help the plant grow better or more efficiently in some way by improving processes or providing the plant with amino acids and humic acids, so the plant doesn’t have to make everything itself.
- PK Boosters & “Shooting Powders” – With this type of supplement, the main ingredients are just Phosphorus and Potassium because they are important for flowering. These also sometimes contain some amount of sulfur. In general, use these sparingly as they’re usually very potent! And don’t forget that every quality base Bloom nutrient should already contain plenty of P and K.
Often, bloom supplements will include a mix of some or even all of these types of ingredients! It can definitely get a little confusing so I’ll try to break it down a little 🙂
Sugar or Carbohydrates
A cheap alternative to expensive sugar-based bloom boosting supplements is blackstrap molasses. Giving this to your plants for the last few weeks before harvest can help them get bigger and smell/taste better. It’s not specially made for plants; it’s the regular stuff you’ll find in your kitchen or at the grocery store. Blackstrap molasses adds sugars, amino acids and trace minerals. Unfortunately for hydro growers, anything organic like molasses is not suitable for a hydroponic reservoir! But molasses works great for soil and coco growers 🙂
For last 2-3 weeks before harvest, give 1/2 tsp of Blackstrap Molasses per gallon when watering (for soil or coco coir)
For those who prefer something in a bottle, I’m really intrigued by Botanicare’s Sweet Carbo line. According to Botanicare:
The natural esters in Sweet are easily absorbed by the plant, but are not broken down further once deposited within the plant tissue. This means that as new flowers develop they will contain small amounts of these natural esters which contribute to the overall flavor and aroma of the finished product.
They offer flavors such as grape, citrus, berry, and “raw” (which is just a generally sweet smell). These should be used throughout the flowering stage to help build smell/flavor in the buds as they mature. However, since these contain a small but significant amount of magnesium, they should not be used while flushing during last 2-3 weeks before harvest. At this point, the smells have already been deposited into the buds. Another cool thing about these supplements is they contain amino acids and some other enhancers, so it’s kind of like getting a lot of different products at once.
Other growers who’ve tried the “raw” version have said they can definitely notice an increase in the amount of “sweet” smell in their buds and it’s made me curious/jealous. I plan to use Sweet Grape as my primary supplement for the flowering stage in a future grow; I’ll report back whether buds actually smell like grape, sweet or plain ol’ cannabis 🙂
The jury is still out and which is the most effective supplement, but many growers are happy with bloom promoting supplements that include sources of…
- amino acids
- humic acids
- trace minerals
I personally don’t use this type of supplement so I can’t recommend a particular one, but some of the most popular cannabis supplements based on this type of formula include…
- Floralicious Plus (by General Hydroponics)
- Liquid Karma (by Botanicare)
- Diamond Black (by General Organics)
Note: These are only for soil or coco coir! (Since these supplements contain a lot of organic materials like guano and fishmeal, they are not suitable to hydroponic reservoirs)
PK Boosters & “Shooting Powders”
The supplements listed above use ingredients that add only tiny amounts of base nutrients (NPK). This means that they have less of a chance of overwhelming your plant with too high levels of nutrients (which can be easy to do if you’re adding a lot of supplements!).
However, this last set of nutrients directly adds P and K. If you’re using a regular Bloom nutrient already, this can make it really easy to go overboard with P and K. Whenever using this type of nutrient, a tiny amount goes a really long way! Whenever possible, try to choose a supplement by the same company as your base nutrients – this will help prevent negative interactions between the nutrients and the supplements. In general…
- Phosphorus (P) increases number of flowers
- Potassium (K) increases weight/density of flowers
These sometimes also come with a small amount of Sulfur (S), and possibly other ingredients like amino acids, trace minerals and/or sugar like the supplements above.
Suitable for Hydro, Soil or Coco – Supplements to Increase Yields/Density with extra P & K
- Liquid Koolbloom (by General Hydroponics)
- Hydroplex (by Botanicare)
- Beastie Bloomz (by Fox Farms)
4.) Better Taste, Better Smell – Increase Terpene Content
The smell and scent of cannabis buds are produced by plant chemicals known as “terpenes” (also “terpenoids”, which are a class of terpenes).
Terpenes contribute to the flavors of many household spices (like cinnamon, rosemary, cloves and ginger) and help create the scent of most flowers.
The unique combination of terpenes and terpenoids produced in cannabis flowers (buds) cause most of their taste and smell as well.
There are a variety of ways to increase the terpene content of your buds so you produce cannabis that tastes and smells great, and there are also a couple of common mistakes you should know about that can actually ruin the taste and smell of your buds.
5.) Maintain Proper Temperature and Humidity
Maintain daytime temperatures around 65-80°F (18-26°C) in the flowering stage unless you’re using CO2 which does best at around 80-90°F (26°-32°C). However, even if you’re using CO2, most growers recommend you back off and bring the temps down to 65-80°F for the last two weeks before harvest.
Night temperatures should be kept around 68-75°F (20°-24°C) for most strains. Too-cool temps increase the chances of bud rot, which thrives in the 60°F (15°C) range, and freezing temperatures can actually damage or even kill your plants.
However, if you’re growing a strain that turns color, keep in mind that some of these strains will only show their color when night temperatures are at least a few degrees cooler than during the day in the flowering stage.
Some strains need slightly cooler night temperatures before their buds will turn colors. For example the buds of this Auto Frisian Dew turned bright purple after it started getting below 70°F (21°C) temperatures at night.
Humidity stumps a lot of new growers and causes several unexpected problems.
Maintaining higher humidity during the vegetative stage will reduce salt levels within the plant while encouraging healthy and lush growth.
During the vegetative stage, if humidity drops below 40%, especially anywhere below 25%, it can cause problems that look like nutrient deficiencies or light/heat stress!
But in these cases, just adding a little moisture to the air does wonders, even if you don’t change anything else.
During the flowering stage, your cannabis plants actually prefers less humidity!
Decreasing moisture in the air (lowering the humidity) during the flowering stage helps prevent mold and actually may increase trichome production in your buds! For best results, keep humidity 40%-50% during the flowering stage.
Lower humidity levels in the flowering stage helps promote trichome production, which increases the amount of “glitter” you see on buds
“But I’ve never worried about humidity and my plants are fine…”
The truth is, you can successfully grow your marijuana plants in high or low humidity, even if growth isn’t perfect. This is the primary reason why many growers – especially new ones – forget about humidity altogether.
New growers also tend to hastily spend money on CO2, supplements or expensive nutrients when controlling the humidity in their setup could make a much bigger difference in their final product.
So if you’ve realized that your humidity is far higher or lower than what’s recommended, you may be able to make a simple, relatively cheap change to dramatically improve the vibrancy of your plants.
For growers in really dry or humid areas, it can make a big difference to buy a humidifier/dehumidifier and make sure they’re always providing the optimum humidity levels.
And there’s one more insider trick you need to know about humidity: So you know you need to keep humidity in 40-50%RH range for the flowering stage, but there is one extra trick… Use a dehumidifier to drop the humidity down as low as you possibly can for the last 2-3 weeks of flowering (I’ve gotten the humidity as low as 25%).
This extreme dryness will encourage the buds to seal and protect themselves with additional resin (in other words, a sparkling outer layer of THC-heavy trichomes).
As an added bonus, this trick also gets your buds prepped for a successful, mold-free drying process because your buds have already given up some of their moisture.
6.) Make Sure Grow Room has Strong Air Flow & Good Ventilation
This is yet another factor having to do with air quality (we already listed temperature and humidity).
Over time, any grower (especially indoor growers) will see that great air quality is a big contributor to star-quality buds. Air flow and ventilation are essential if you want to create perfect air quality.
For 1-3 plants smaller to mid-sized plants, you’ll probably be fine with an oscillating fan or two. With a big grow and hot lights, you’ll need a better exhaust system to ensure proper airflow, but it can be easy to set up!
7.) Master the Basics – Especially Drying & Curing
You probably know that in order to get the best results, your plants need to make it through the majority of their lifecycle without major problems.
But although your growing methods are incredibly important, one of the most important things to focus on is when you harvest, as well as the process of drying/curing your buds after harvest.
In fact, the things you do during and after harvest, including drying/curing, makes up almost 50% of your final bud appearance!
Drying/curing the right way will make buds smell better, look better, be more dense, and buds will actually feel more potent!
If you haven’t really been paying attention during the drying/curing part of your grow, you should focus here for the greatest gains in quality!
Drying buds slowly and then curing them in glass mason jars for 2-4+ weeks helps “tighten up” buds so they are more dense. Curing also intensifies smell and increases potency!
What else to pay attention to during the grow?
A lot of mistakes that won’t kill your plant (like nutrient burn, nutrient deficiencies, and heat stress) can often still damage the overall appearance of your buds, especially big problems that happen after the beginning of the flowering stage while buds are in the process of forming.
More importantly, too many problems during the flowering stage can reduce the maximum potency your plant can achieve!
So in order to get the best yields along with beautiful buds that sparkle in the light, you need to gain a complete understanding of the basics of growing. It’s also important to provide your plants with a good growing environment.
But if you were to focus on just ONE thing to improve with your grow, the factor that makes the biggest difference to your quality (besides the strain) is the drying and curing process.
To Sum it Up:
Learn everything you can, start with good genetics and create the perfect growing environment to produce the best buds!
Ever wondered how to grow your own "top-shelf" buds like the ones you get from a dispensary? Learn 7 insider tips to producing your own frosty, medical-quality buds!