8 Tips for Cultivating OG Kush Cannabis: Grower’s Guide

| “In this simple how-to guide, we provide the tips and tricks you need in order to grow lush OG Kush nugs like a seasoned pro.”

There is something magical about being able to grow your favorite cannabis strain. Unfortunately, it is only possible for you to grow marijuana in specific states where cultivation is legal. As a result, the grow guides featured on WayofLeaf should only be used by individuals in states that allow for personal cultivation (we discuss this issue further in Tip #7).

In this guide, we focus on providing the tips and tricks you need to have a successful harvest when growing OG Kush. This famous hybrid strain is shrouded in mystery, with different stories behind its creation. Some people say that ‘OG’ stands for OverGrown.com, the Canadian grow-site that was closed down by the police back in 2006. Others suggest it is an homage to Original Gangster, the infamous California marijuana strain.

In all likelihood, OG Kush is a genetic cross of Old-World Paki Kush and Chiding. It is an indica-dominant (75%) hybrid with a THC content that can potentially hit a whopping 26%. As it is primarily an indica, OG Kush provides you with an intensely strong high that hits you very quickly. The cerebral buzz can sedate you after a while, and it can ultimately cause couch-lock. The earthy and pungent scent is alluring, and the sparkling resinous crystals are a joy to behold.

Given its powerful sedative qualities, it isn’t a surprise to learn that it is used to treat insomnia, depression, and anxiety. Its CBD content isn’t enough to counteract the effects of the THC, but it does provide added medical value according to users. OG Kush is relatively expensive, which means you can save money by growing it at home. Keep reading to discover eight great tips.

OG Kush Tip #1 – It Grows Well Inside and Outside

Certain marijuana strains flourish indoors, while others provide spectacular yields outside. With OG Kush, you can expect it to provide more weed when grown outdoors, but it is certainly a great strain to keep in a specialized grow room in your home. If you’re concerned about the size of the buds, consider a SOG or SCROG method (or one of the various training techniques) to boost your yield. On average, OG Kush provides 17 ounces per square meter planted indoors, and its flowering time is eight weeks.

| “On average, OG Kush provides 17 oz of bud per square meter (indoors), and its flowering time is roughly eight weeks.”

If you grow outdoors, you can expect to receive up to 16 ounces per plant, and it will be available for harvest in early October. The main issue you will face is attacks of powdery mildew (we cover this more in tip #6), but you can combat this issue by improving airflow. This normally requires pruning because OG Kush is indica-dominant, which means it grows short and dense.

OG Kush Tip #2 – For Indoor Growth, Consider a Hydroponics Setup

Marijuana has grown unfettered around the world for thousands of years and is renowned for its toughness. The plant has even adapted to varied climate conditions by developing different types of weed. Sativa cannabis thrives in a warm climate for example, whereas indicas were originally found in the harsh Asian steppes.

Traditionally, marijuana was grown in soil, but in the modern era, hydroponic systems have become more popular. Quite simply, hydroponics involves using an inert growing medium instead of soil. There is a suggestion that ancient civilizations used hydroponics in gardening, so it is far from being a new phenomenon.

OG Kush is a prime candidate for this type of growing, due to its susceptibility to disease when grown in soil. There are three main growing medium options:


Rockwool – Made from thin rock fibers and is the most popular choice because of its moisture retaining ability. You need to soak it in a pH solution of 5.5 before use

Clay Pellets – These heavy pellets support your plant well and wick moisture towards the roots

Coconut Fiber – This is the most environmentally friendly option and is excellent for retaining moisture

There are also several hydroponic setup options for OG Kush, including:

  • Wick System
  • Aeroponics
  • Drip System
  • Ebb and Flow
  • Nutrient Film Technique
  • Deep Water Culture

| “If you elect to use a hydroponics system on your OG Kush grow, note that you have to ensure your plants get enough nutrients.”

OG Kush Tip #3 – Feeding the Plants

Aside from the normal practice of adding nutrients (including the “Big 3” of Nitrogen, Phosphorus, and Potassium), you need to ensure that OG Kush – like all plants with OG genetics – receives enough calcium and magnesium. Calcium provides structure to the plant and helps it withstand stress. It isn’t easy to uncover a calcium deficiency because it is normally accompanied by other issues such as iron or magnesium deficiency.

Bear in mind that calcium moves through the OG Kush plant rather slowly. You can spot deficiencies in parts of fan leaves exposed to light and newer growth. Signs to look out for include curled tips, stunted growth, crinkling, dead spots, and small or unusual looking new leaves.

| “Signs for Calcium deficiency in an OG Kush grow include curled tips, stunted growth, crinkling, dead spots, and small/unusual looking new leaves.”

If your OG Kush plant doesn’t receive enough calcium, its stems become weak and hollow, development of buds and flowers are slow, and its roots become more susceptible to root rot. This is a particular problem when using hydroponics, so if you believe your plants have a calcium deficiency, invest in a Cal-Mag (Calcium and Magnesium) supplement.

As magnesium is a mobile nutrient, unlike calcium, your plants can move it from old leaves to new ones. The problem with this deficiency is that it can quickly cause your plants to lose lots of lower leaves. Your plants may have a magnesium deficiency if the bottom leaves on the plant have yellow or bright green edges that feel ‘crisp’ to the touch.

OG Kush Tip #4 – Growing at the Right Temperature

The generic temperature range for OG Kush is between 65- and 80-degrees Fahrenheit. It handles lower night-time temperatures better than most strains, and it is imperative that you drop the humidity during flowering. As a rule of thumb, if you feel uncomfortable in the grow room (too hot or too cold), it is likely that your marijuana plants feel the same way!

During the vegetative stage, keep the temperature close to 80 degrees. Once your OG Kush reaches the flowering stage, drop it to around 70 degrees. Make sure there is no more than a 10-15 degree drop between day and night temperatures throughout the growth cycle.

og kush grow

If your grow room is too cold for a prolonged period, you will shock your plants, slow down growth, and possibly kill the entire crop! Colder temperatures also increase the risk of mold. It can cause the leaves of your OG Kush plants to turn purple, and low temperatures also reduce the rate of photosynthesis.

| “If your OG Kush grow room is too cold for a prolonged period of time, you will shock the plants, slow their growth, and possibly even kill the entire crop!”

Although it is rare for a marijuana plant to die from temperatures that are slightly too high, it is unwise to grow OG Kush at an excess of 80 degrees. This slows down bud growth during the flowering stage and reduces the smell and potency of the buds. Excess heat also increases the risk of attracting pests such as spider mites, and the leaves can wilt due to root oxygen deprivation.

OG Kush Tip #5 – CO2 Enrichment Changes the Optimal Temperature Range

The game changes when you add carbon dioxide enrichment to the equation. By exposing your plants to an increased level of CO2, you can increase the yield by up to 20%. Marijuana plants breathe CO2 rather than oxygen because it is a key part of the photosynthesis process. CO2 enrichment also ensures your plants are more resistant to heat and light stress.

The idea behind CO2 enrichment is to ensure your crop grows in an area where the air contains 1200-1500 ppm of CO2. For it to work, you have to seal up the grow room and inject more carbon dioxide into the air. A CO2 generator is the most obvious choice, but you can also purchase compressed CO2. With at least 1200 ppm of CO2 in the air, your OG Kush plants can thrive at a temperature of up to 95 degrees.

DID YOU KNOW: By exposing OG Kush plants to increased levels of CO2, you can increase their yield by up to 20%?

OG Kush Tip #6 – Beware of Bud Rot & Powdery Mildew

OG Kush is susceptible to these twin problems, and if you don’t spot these issues quickly they can devastate your crop. Bud rot is a form of mold that develops on the stem inside of the bud. It spreads outwards and is notoriously tough to catch early on. It doesn’t take long for bud rot to produce spores which can spread throughout the garden. If you catch the rot too late (buds look grey and squishy), you may have to discard the entire plant.

Bud rot loves an excessively humid environment and also thrives in poorly ventilated rooms. You should keep humidity to a maximum of 55% during the vegetative stage and ease it towards the 40% mark during flowering.

Purchase high-quality fans to promote good airflow and consider pruning your OG Kush plants if they become too thick. If you find bud rot on a plant, remove the affected area and place the rest of the plant in a separate room. Otherwise, you risk the infection spreading to the rest of the garden.

Powdery mildew is easier to spot because it appears as a white powder on the leaves and branches of plants. However, it spreads like lightning as it ends up on bud sites. OG Kush is unfortunately prone to mildew which means you have to take precautions during the growing process.

First of all, spray your OG Kush plants with organic fungicides and compost tea if you see evidence of the mildew. Make sure the plants are pruned for better airflow and act as soon as you see it. If you see cannabis that’s ready to be harvested with powdery mildew, spray a mixture of 3% hydrogen peroxide and water to kill the mildew and sterilize the plants.

PRO GROWING TIP: If you see mature OG Kush plants with powdery mildew, spray a mixture of 3% hydrogen peroxide and water to kill the mildew and sterilize the plants.

OG Kush Tip #7 – Growing the Strain – Keep It Legal!

At the last count, it was possible to grow marijuana in 21 states plus D.C. In the majority of these states, you are only allowed to cultivate weed at home if you have a medical marijuana card. There are exceptions, primarily in states where cannabis is legal recreationally. Even in those areas, you have to adhere to state laws. For example, in California and Colorado, you are allowed to grow a maximum of six plants.

In Massachusetts, you can grow up to an ounce outside of your property and 10 ounces at home; up to a maximum of six plants. In Oregon, the maximum allowance falls to four plants per household. In states such as Rhode Island, Oklahoma, and New Mexico, you can only grow with an MMJ card. In New York State, weed is legal medicinally and is decriminalized in most cases, but growing it at home is a misdemeanor. In Washington state, marijuana is legal recreationally, but only MMJ cardholders can grow it.

Of course, woe is you if you’re caught growing marijuana in a state where it is illegal. In Utah, for example, possession of over a pound of weed is classified as a felony and can result in up to 15 years in prison with a $5,000 fine. In Alabama, if your crime is classified as ‘Manufacture 1st Degree’, you could be sentenced to life in prison!

DID YOU KNOW: If you get caught growing weed in Alabama and your crime is classified as ‘Manufacture 1st Degree,’ you could be sentenced to life in prison?

In any event, we do not recommend growing cannabis illegally, and if you ignore our advice, you do so at your own risk.

OG Kush Tip #8 – Don’t Forget About Security

The nationwide average cost of an ounce of OG Kush is $255 (much higher in California). Even if you grow just six good plants and have around 60 ounces, that equates to over $15,000 worth of cannabis. If you have a commercial license, you can grow even more. Indoor growers don’t need to take any greater security measures than they normally would with regards to keeping burglars at bay. If your weed is out of sight and you don’t broadcast the fact that you’re growing, you should be fine.

DID YOU KNOW: The nationwide average cost of an ounce of OG Kush is $255?

However, it is a different matter for anyone who grows OG Kush outdoors. As well as fighting against pests and predators, you have to keep your crop safe from would-be thieves. If your crop is valuable enough and you believe there is a high risk of robbery, it makes sense to invest in personal security cameras and audible alarms. Technology has advanced to the stage where multiple-camera security systems are eminently affordable. You link these to an online server and can monitor them from anywhere.

As useful as cameras are, they don’t necessarily prevent your crop from being stolen or destroyed; although they can identify the culprit. If you want to cause thieves to run for the hills, install an audible alarm system; as soon as a robber enters your cannabis garden, you need an alarm to go off that sounds like an air raid siren!

Lastly, it should go without saying that you need to hide your garden from public view; in fact, this is a legal requirement in most states. Creating a grow tent is a good idea outdoors, as is the installation of a carbon filter or another device that neutralizes odors. The last thing you want is for the sweet smell of weed to pierce the nostrils of passers-by. Good security measures could be the difference between a fabulous yield and crushing disappointment.

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