Black Runtz Strain Information: Genetics, Effects & Benefits

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If you’re looking for a berry good time with your next buzz, you might want to explore the Black Runtz Strain.

Its intense tangy and sweet berry flavors make it a very popular strain among cannabis connoisseurs looking for a high THC count and a happy, uplifting high.

Plus, with an ultimately relaxing body buzz that makes it a great antidote for chronic pain or anxiety, Black Runtz is an ideal strain whether you want fun, healing, or flavor.

What is Black Runtz Strain?

Black Runtz is a hybrid indica dominant cannabis strain that’s a cross between the Zkittlez and Gelato strains. As the legend goes, Black Runtz was first created on Big Boss Farms in British Columbia, Canada.

Featuring a distinctive appearance, this hybrid strain has small to medium-size buds that are dark green with rich, dark purple hues. The buds are also dense and tightly packed, with a thick layer of trichomes covering them like a layer of morning frost.

The consensus among cannabis users is that Black Runtz. produces a very pleasurable high with euphoric and uplifting effects that can enhance mood and boost creativity. This unique strain also has a reputation for causing it users to become playfully chatty, thus making it great for socializing.

Besides its obvious recreational benefits, Black Runtz additionally provides a relaxing body high that can offer needed therapeutic relief for those suffering from any sort of consistent pain.

Black Runtz also has a pair of close siblings from its Zkittlez and Gelato parents that are somewhat similar strains The first is Pink Runtz, which accents the giggly nature of the strain, and the other is White Runtz, which has a more increased level of body high.

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A variation of the award-winning Runtz strain, Black Runtz is occasionally referred to in the cannabis community as the phenotype’s dark twin.

Genetically, this hybrid strain is 55% indica dominant and represents a cross between its parent strains.

Potency and Effects

Black Runtz has a THC content ranging from 19-30%, thus making it a very potent strain.

This high THC level is a direct inheritance from its Zkittlez and Gelato genetics where both parents have average THC ratings between 20-25%.

According to many cannabis enthusiasts, the potent effects of this hybrid strain can elevate mood, enhance creativity, stimulate talkiness, and promote social interaction.

Another of the enjoyable effects of Black Runtz is the sense of overall body relaxation it provides, making it a great strain for stress relief and chronic pain conditions.


With a sweet, berry rich flavor and an alluring aroma of fresh citrus fruits, the Black Runtz Strain is both a taste treat and an olfactory delight.

The Black Runtz terpene profile is a major reason for this, contributing heavily to its berry sweet flavors and fruity notes.

The major factor is limonene, which is responsible for the strain’s lemony aroma, as well as its effects on users’ well-being and mood.

Another terpene in Black Runtz is Myrcene, also found in mangos, which furnishes an earthy aroma and has sedative effects that promote relaxation. The last contributor is Caryophyllene. This gives the strain its spicy scent, along with producing relaxing effects that can help improve your general sense of well-being.

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Growing Information

If you’re thinking about growing your own Black Runtz Strain, be aware that it can be one of the trickier cannabis strains to manage, though it is amenable to both indoor and outdoor cultivation.

Below are some useful tips for both indoor growers and outdoor growers to gain a maximum yield for their efforts.

Indoor Growing Tips

In order to grow the Black Runtz Strain indoors, you’re going to need some space. Therefore, it’s a must for you to be familiar with SCROG growing techniques to maximize your yield.

SCROG is an acronym for “Screen of Green,” and refers to flattening out a plant’s growth by making the lower branches grow higher and the higher branches grow lower.

To further promote healthy growth, you’re also going to need to create a controlled environment that will duplicate the plant’s natural conditions.

That means the temperature needs to be between 20 – 26 degrees C (68 -79 degrees Fahrenheit) and the relative humidity needs to be between 40 – 50%. To help maintain these strict requirements, it’s a good idea to employ the use of a heater, air-conditioner, and humidifier.

Feeding is also more important with this strain than with other plants, because the Black Runtz Strain can be sensitive to overfeeding. As a result, you should start with a light nutrient protocol and then gradually increase it over time.

The pH levels of the soil and water are also key and should be in the range of between 6.0-6.5.

If everything goes right, the Black Runtz Strain has a flowering time of approximately 8-9 weeks and will yield around 500 grams of buds, or about 17 ounces per square meter of grow space.

Pruning and topping can also be helpful to increase yield, though be gentle so as not to stress the plant. Likewise, high quality lighting like LED (Light Emitting Diode) or HPS (High Pressure Sodium Vapor) lights can also increase your crop.

Outdoor Growing Tips

The Black Runtz Strain can also be grown effectively outdoors, though keep in mind that you will need to be living in a warm, sunny climate with a long growing season.

Because the Black Runtz Strain also tends to spread its branches, you’re also going to need a decent amount of space.

The harvest time for this hybrid strain is usually around mid-October and can yield up to about 650 grams per plant.

Of course, going the extra mile with high quality soil and nutrients, top grade fertilizers, composting, and other sound cultivation techniques will further help to furnish a great crop.

You should also be aware that the Black Runtz Strain is sensitive to overwatering, so make sure the soil is dry to the touch before you start to give this strain something to drink.

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Benefits of Black Runtz

For Growers

The upsides of a challenge are that you get to improve your skills and find out something about yourself.

If you’re a cannabis connoisseur who appreciates not only the head, but the sanctity of nature, then attempting to grow Black Runtz cannabis strain will be your Zen.

That’s because the Black Runtz Strain offers the aspiring (and professional) grower a full menu of needs to provide for, including climate, soil, nutrients, space, and love.

Yet in return you’ll get a beautiful plant with an 8-9 week flowering time that will provide a crop of buds that are among the most aromatic and flavorful among the various cannabis strains.

For Recreational Users

Recreational cannabis users love the well balanced effects of Black Runtz, from its sweet and fruity aroma to its yummy berry flavor and uplifting high that enhances creativity and socializing.

Plus, the relaxing physical buzz this unique strain offers to your whole body can create the perfect environment for relaxing with music, a movie, or someone else.

For Medical Users

If you suffer from anxiety, stress, or some type of chronic nausea or pain, the Black Runtz Strain produces an excellent body buzz that is very effective for promoting pain relief.

Side Effects of Black Runtz

Even though this is a popular hybrid strain among cannabis users, Black Runtz does have some unwelcome side effects such as cotton mouth and red eyes. Some users have also reported feeling dizzy, anxious, and paranoid.

Our advice would be to take it slow if it’s your first time using Black Runtz. It’s a great cannabis strain for chilling alone, so try it that way and see what unfolds.

If you continue feeling any sort of discomfort, see your doctor and ask what they think.

Where to Buy Quality Black Runtz Weed Strain

Seed Supreme and Blimburn Seeds are two of the most reputable seed banks in the cannabis industry. They can provide you with not only dependable cannabis seeds to grow your own Black Runtz, but other cannabis strains as well.

Best Overall Online Seed Bank: Seed Supreme


  • 10% off your first order

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  • List prices are not always affordable.

Seed Supreme is one of the largest and most reputable seed banks in the cannabis industry for not only Black Runtz but for thousands of other strains.

Featuring a solid collection of more than 1,500 cultivars from top breeders, they have it all, including feminized seeds and autoflowering seeds, high THC and CBD strains, and a lot more.

Plus, there’s a 90-day germination guarantee with every seed you buy. That means any seed purchased that doesn’t pop within the allotted time will be replaced for free.

There’s also a highly informative blog, so whether you’re a pro, or new to all this, there are growing tips and tutorials on what to do to get the most out of your cannabis seeds.

All new customers receive 10% off their first order, and there’s always free and discreet shipping in the U.S. and worldwide.

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With over 20 years online, Blimburn Seeds is the International Cannabis Association’s pick as the #1 Seed bank in the U.S.

Why? It starts with a user-friendly platform that lets you navigate easily through their large selection of marijuana seeds to find Black Runtz, or whatever it is you need.

Whether you’re new to growing or an old hand, there’s an encyclopedic online blog that has something for everyone on how to get the most out of your harvest.

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Add free shipping and a secure payment system that will always keep your info totally safe, and you might find that Blimburn isn’t only the ICA’s favorite, it might turn out to be yours too.


Is Black Runtz an Indica or Sativa?

Black Runtz is a 55% indica dominant strain that’s derived from the Zkittlez and Gelato strains, the former being a 70% indica dominant strain, and the latter a 60% indica dominant strain.

Is Black Runtz a Strong Strain?

Yes, cannabis enthusiasts generally agree that the Black Runtz strain provides some very potent effects. Featuring a THC count between 20 and 30%, this strain is known for its strong sedative properties that can benefit those seeking relief from ongoing pain.

How Does Black Runtz make you feel?

Some of the unique characteristics of the Black Runtz strain are a pronounced sense of euphoria, talkiness, and a creeping high that turns into quite a relaxed body buzz.

How Does Black Runtz taste?

Black Runtz is known for having a sweet berry/ tart citrusy flavor embedded in its creamy smoke that will tickle your taste buds with a deliciously sweet and sour effect.

It’s limonene-heavy terpene profile supports this delicious dichotomy by also giving Black Runtz a distinct citrus scent.

Final Thoughts

If you’re looking for a well-balanced hybrid strain that can be used for either recreational or medical purposes, Black Runtz has the best qualities for both.

The pride and joy of Big Boss Farms in British Columbia, Canada, Black Runtz’s immense popularity comes from its delicious taste, aromatic bliss, and uplifting, relaxing high.

With a 20-30% THC count, Black Runtz is great for either chilling out with friends, or helping to soothe the root anxiety that can lead to some nervous and eating disorders.

It can be a little tricky to grow if you’re a beginner, but in our conclusion Black Runtz has the taste, potency, and flexibility to launch your high wherever you’d like it to go.

The information regarding cannabis, cannabis-related, THC and CBD products is for informational and educational purposes only, not substituting professional medical advice or treatment. We do not promote or endorse the use, sale, or distribution of cannabis where it's not legally permitted. The legality of cannabis varies by state and jurisdiction, and we urge users to comply with all federal, state, and local laws concerning its use and sale. We encourage users to consult with healthcare professionals. We might earn a commission if you make a purchase through one of the links. McClatchy's Commerce Content team, which is independent from our newsroom, oversees this content.